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1. Global and regional importance of the direct dust-climate feedback

Author

Jasper F. Kok, Daniel S. Ward, Natalie M. Mahowald, and Amato T. Evan

Subjects
Science
Abstract

Feedbacks between desert dust and climate might have amplified past climate changes, yet their role in future climate change is unclear. Here the authors find that dust feedbacks could play a key role in the future climates of Northern Africa, the Sahel, the Mediterranean, the Middle East, and Central Asia.

Published
2018
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3. Comparative analysis of anticholinergic burden scales to explain iatrogenic cognitive impairment and self-reported side effects in the euthymic phase of bipolar disorders: Results from the FACE-BD cohort

Author

Etain, B., Olié, E., Leboyer, M., Haffen, E., Llorca, P.M., Barteau, V., Bensalem, S., Godin, O., Laouamri, H., Souryis, K., Hotier, S., Pelletier, A., Drancourt, N., Sanchez, J.P., Saliou, E., Hebbache, C., Petrucci, J., Willaume, L., Bourdin, E., Bellivier, F., Carminati, M., Marlinge, E., Meheust, J., Hennion, V., Francisque, H., Aouizerate, B., Da Ros, N., Desage, A., Elkael, C., Gard, S., Hoorelbeke, F., M'bailara, K., Minois, I., Sportich, J., Boukhobza, L., Benramdane, M., Courtet, P., Deffinis, B., Denat, S., Ducasse, D., Gachet, M., Molière, F., Nass, L., Tarquini, G., Belzeaux, R., Cermolacce, M., Groppi, F., Moreau, E., Lefrere, A., Lescalier, L., Pastol, J., Viglianese, N., Cohen, R., Gross, G., Schwan, R., Schwitzer, T., Wajsbrot-Elgrabli, O., Bougerol, T., Fredembach, B., Denoual, Q, Bertrand, A., Pouchon, A., Polosan, M., Bonny, G., Brehon, L., Durand, L., Feuga, V., Galliot, A.M., Kayser, N., Passerieux, C., Roux, P., Aubin, V., Cussac, I., Dupont, M.A., Loftus, J., Medecin, I., Dubertret, C., Mazer, N., Portalier, C., Scognamiglio, C., Bing, A., Laurent, P., Llorca, PM., Samalin, L., Foures, L., Lacelle, D., Pires, S., Doriat, C., Blanc, O., Bennabi, D., Nicolier, M., Vidal, N., Brunet-Gouet, E., Frileux, S., D'Amato, T., Januel, D., and Walter, M.

Published
2023
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4. A new satellite-based global climatology of dust aerosol optical depth A new satellite-based global climatology of dust aerosol optical depth

Author

Voss, Kara K and Evan, Amato T

Subjects
Climate Action, Atmospheric Sciences, Environmental Science and Management, Agriculture, Land and Farm Management, Meteorology & Atmospheric Sciences
Abstract

By mass, dust is the largest contributor to global aerosol burden, yet long-term observational records of dust, particularly over the ocean, are limited. Here, two nearly global observational datasets of dust aerosol optical depth τd are created primarily on the basis of optical measurements of the aerosol column from 1) the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra satellite spanning from 2001 to 2018 and 2) the Advanced Very High Resolution Radiometer (AVHRR) from 1981 to 2018. The quality of the new data is assessed by comparison with existing dust datasets that are spatially more limited. Between 2001 and 2018, τd decreased over Asia and increased significantly over the Sahara, Middle East, and parts of eastern Europe, with the largest increase found over the Aral Sea where emissive playa surfaces have been exposed. These daily, observational, and nearly global records of dust will allow for improvement in understanding the role of dust in climate variability.

Published
2020

5. Downslope Winds and Dust Storms in the Salton Basin Downslope Winds and Dust Storms in the Salton Basin

Author

Evan, Amato T

Subjects
Climate Action, Downslope winds, Dust or dust storms, Desert meteorology, Applied Mathematics, Atmospheric Sciences, Meteorology & Atmospheric Sciences
Abstract

Abstract The Salton basin is a closed, subsea level basin located in extreme southeastern California. At the center of the basin lies the Salton Sea, the state’s largest inland lake, which is surrounded by a desert landscape characterized by paleo lakebed surfaces, dry washes, alluvial fans, and interdunes. Dust storms are common occurrence in this region. However, despite the regularity of dust outbreaks here, little is known about the meteorological processes responsible for these storms. Here I use observations and output from reanalysis to elucidate the meteorological controls on dust emission events in the Salton basin during 2015–18. Analysis of surface and upper-air observations, satellite data, and reanalysis, suggest that the largest dust storms in the region are associated with an upper-level low centered near the coastline of western Canada, which directs a zonal low-level jet over the region. Flow blocking by a coastal mountain range results in isentropic drawdown of air in the lee of these mountains. Once surface warming at the floor of the Salton basin is sufficient such that the density of the descending air is greater than that of the ambient air at the surface, the downslope windstorm reaches the desert floor and initiates dust emission. This process may also be accompanied by a downwind propagating hydraulic jump. These processes appear to be similar to those responsible for the strongest dust events in the Owens Valley, and may represent the main mechanisms for emission from other closed basins.

Published
2019

6. A New Method to Characterize Changes in the Seasonal Cycle of Snowpack

Author

Evan, Amato T

Subjects
Snowpack, Time series, Trends, Atmospheric Sciences, Environmental Science and Management, Agriculture, Land and Farm Management, Meteorology & Atmospheric Sciences
Abstract

AbstractIn the western United States, water stored as mountain snowpack is a large percentage of the total water needed to meet the region’s demands, and it is likely that, as the planet continues to warm, mountain snowpack will decline. However, detecting such trends in the observational record is challenging because snowpack is highly variable in both space and time. Here, a method for characterizing mountain snowpack is developed that is based on fitting observed annual cycles of snow water equivalent (SWE) to a gamma-distribution probability density function. A new method for spatially interpolating the distribution’s fitting parameters to create a gridded climatology of SWE is also presented. Analysis of these data shows robust trends in the shape of the annual cycle of snowpack in the western United States. Over the 1982–2017 water years, the annual cycle of snowpack is becoming narrower and more Gaussian. A narrowing of the annual cycle corresponds to a shrinking of the length of the winter season, primarily because snowpack melting is commencing earlier in the water year. Because the annual cycle of snowpack at high elevations tends to be more skewed than at lower elevations, a more Gaussian shape suggests that snowpack is becoming more characteristic of that at lower elevations. Although no robust downward trends in annual-mean SWE are found, robust trends in the shape of the SWE annual cycle have implications for regional water resources.

Published
2019

7. Quantifying the dust direct radiative effect in the southwestern United States: findings from multiyear measurements.

Author

Kuwano, Alexandra, Evan, Amato T., Walkowiak, Blake, and Frouin, Robert

Subjects
SOIL mineralogy, IR spectrometers, DESERTS, INFRARED imaging, TERRESTRIAL radiation
Abstract

Mineral aerosols (i.e., dust) can affect climate and weather by absorbing and scattering shortwave and longwave radiation in the Earth's atmosphere, the direct radiative effect. Yet understanding of the direct effect is so poor that the sign of the net direct effect at top of the atmosphere (TOA) is unconstrained, and thus it is unknown if dust cools or warms Earth's climate. Here we develop methods to estimate the instantaneous shortwave direct effect via observations of aerosols and radiation made over a 3-year period in a desert region of the southwestern US, obtaining a direct effect of -14±1 and -9±6 W m -2 at the surface and TOA, respectively. We also generate region-specific dust optical properties via a novel dataset of soil mineralogy from the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), which are then used to model the dust direct radiative effect in the shortwave and longwave. Using this modeling method, we obtain an instantaneous shortwave direct effect of -21±7 and -1±7 W m -2. The discrepancy between the model and observational direct effect is due to stronger absorption in the model, which we interpret as an AVIRIS soil iron oxide content that is too large. Combining the shortwave observational direct effect with a modeled longwave TOA direct effect of 1±1 W m -2 , we obtain an instantaneous TOA net effect of -8±6 W m -2 , implying a cooling effect of dust. These findings provide a useful constraint on the dust direct effect in the southwestern United States. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Global and regional importance of the direct dust-climate feedback.

Author

Kok, Jasper F, Ward, Daniel S, Mahowald, Natalie M, and Evan, Amato T

Abstract

Feedbacks between the global dust cycle and the climate system might have amplified past climate changes. Yet, it remains unclear what role the dust-climate feedback will play in future anthropogenic climate change. Here, we estimate the direct dust-climate feedback, arising from changes in the dust direct radiative effect (DRE), using a simple theoretical framework that combines constraints on the dust DRE with a series of climate model results. We find that the direct dust-climate feedback is likely in the range of -0.04 to +0.02 Wm -2 K-1, such that it could account for a substantial fraction of the total aerosol feedbacks in the climate system. On a regional scale, the direct dust-climate feedback is enhanced by approximately an order of magnitude close to major source regions. This suggests that it could play an important role in shaping the future climates of Northern Africa, the Sahel, the Mediterranean region, the Middle East, and Central Asia.

Published
2018

10. Comparison of three scales (BIS, SUMD and BCIS) for measuring insight dimensions and their evolution after one-year of follow-up: Findings from the FACE-SZ Cohort

Author

Aouizerate, B., Berna, F., Blanc, O., Capdevielle, D., Chereau-Boudet, I., Coulon, N., D'Amato, T., Dorey, J.M., Dubertret, C., Fond, G., Gabayet, F., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Passerieux, C., Pignon, B., Peri, P., Portalier, C., Rey, R., Roman, C., Schürhoff, F., Szöke, A., Urbach, M., Zinetti-Bertschy, A., Capdevielle, Delphine, Norton, Joanna, Aouizerate, Bruno, Berna, Fabrice, Chereau, Isabelle, D'Amato, Thierry, Dubertret, Caroline, Dubreucq, Julien, Fond, Guillaume, C, Lançon, Mallet, Jasmina, Misdrahi, David, Passerieux, Catherine, Rey, Romain, Schurhoff, Franck, Urbach, Mathieu, Llorca, Pierre-Michel, and Raffard, Stéphane

Published
2021
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11. Recommendations of the schizophrenia expert center network for the screening prevention and treatment of sleep disorders based on the results from the real-world schizophrenia FACE-SZ national cohort

Author

Sunhary de Verville, P.L., Etchecopar-Etchart, D., Richieri, R., Godin, O., Schürhoff, F., Berna, F., Aouizerate, B., Capdevielle, D., Chereau, I., D'Amato, T., Dubertret, C., Dubreucq, J., Leignier, S., Mallet, J., Misdrahi, D., Passerieux, C., Pignon, B., Rey, R., Urbach, M., Vidailhet, P., Leboyer, M., Llorca, P.M., Lançon, C., Boyer, L., and Fond, G.

Published
2021
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12. Childhood Trauma increases suicidal behaviour in a treatment-resistant depression population: a FACE-DR report

Author

Aouizerate, B., Bennabi, D., Leboyer, M., Haffen, E., Llorca, P.M., Barteau, V., Bensalem, S., Laouamri, H., Souryis, Karmene, Mallet, L., Yon, L., Petrucci, J., Genty, J.B., Yrondi, A., Pierre, D., Schmitt, L., Sarrail, M., Bennabi, Djamila, Ryff, I., Beuchet, E., Tio, G., Cappe, C., Clerc, E., Garnier, M., Honciuc, R.M., Allauze, E., Blanc, O., Bellivier, F., Allaili, N., Nieto, I., Meheust, J., Sunthavy, Y., Maruani, J., Bougerol, T., Polosan, M., Courvoisier, P., Holtzmann, J., Fredembach, B., Foubert-Andreani, S., Camus, V., El Hage, W., D’Amato, T., Haesebaert, F., Dubien, C., Lefebvre, M., Meznad, A., Brunelin, J., Moirand, R., Doumy, O., Lancon, C., Richieri, R., Peri, P., Faugere, M., Faget-Agius, C., Courtet, P., Boulenger, J.P., Moliere, F., Stephan, F., Walter, M., Mesmeur, C., Vaiva, G., Horn, M., Yrondi, Antoine, Vaiva, Guillaume, Walter, Michel, D Amato, Thierry, Bellivier, Frank, Bougerol, Thierry, Camus, Vincent, Doumy, Olivier, Genty, Jean-Baptiste, Haffen, Emmanuel, Holtzmann, Jérôme, Horn, Mathilde, Lançon, Christophe, Leboyer, Marion, Llorca, Pierre-Michel, Maruani, Julia, Moirand, Rémi, Molière, Fanny, Petrucci, Jean, Richieri, Raphaelle, Samalin, Ludovic, Schmitt, Laurent, Stephan, Florian, Courtet, Philippe, El-Hage, Wissam, and Aouizerate, Bruno

Published
2021
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13. Major depression, sleep, hostility and body mass index are associated with impaired quality of life in schizophrenia. Results from the FACE-SZ cohort.

Author

Fond, G., Korchia, T., Sunhary de Verville, P.L., Godin, O., Schürhoff, F., Berna, F., André, M., Aouizerate, B., Capdevielle, D., Chereau, I., D'Amato, T., Dubertret, C., Dubreucq, J., Leignier, S., Mallet, J., Misdrahi, D., Passerieux, C., Pignon, B., Rey, R., Szoke, A., Urbach, M., Vidailhet, P., Leboyer, M., Llorca, P.M., Lançon, C., and Boyer, L.

Published
2020
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14. Confirmations, advances and recommendations for the daily care of schizophrenia based on the French national FACE-SZ cohort

Author

Fond, G., Godin, O., Schürhoff, F., Berna, F., André, M., Aouizerate, B., Capdevielle, D., Chereau, I., D’ Amato, T., Dubertret, C., Dubreucq, J., Faget, C., Lançon, C., Leignier, S., Mallet, J., Misdrahi, D., Passerieux, C., Pignon, B., Rey, R., Szoke, A., Urbach, M., Vidailhet, P., Leboyer, M., Boyer, L., and Llorca, P.M.

Published
2020
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15. Adherence to treatment guidelines in clinical practice for using electroconvulsive therapy in major depressive episode

Author

Samalin, L, Yrondi, A, Charpeaud, T, Genty, JB, Blanc, O, Sauvaget, A, Stéphan, F, Walter, M, Bennabi, D, Bulteau, S, Haesebaert, F, D'Amato, T, Poulet, E, Holtzmann, J, Richieri, RM, Attal, J, Nieto, I, El-Hage, W, Bellivier, F, Schmitt, L, Lançon, C, Bougerol, T, Leboyer, M, Aouizerate, B, Haffen, E, Courtet, P, and Llorca, PM

Published
2020
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16. Comparative analysis of anticholinergic burden scales to explain iatrogenic cognitive impairment and self-reported side effects in the euthymic phase of bipolar disorders: Results from the FACE-BD cohort

Author

Vidal, N., primary, Brunet-Gouet, E., additional, Frileux, S., additional, Aouizerate, B., additional, Aubin, V., additional, Belzeaux, R., additional, Courtet, P., additional, D'Amato, T., additional, Dubertret, C., additional, Etain, B., additional, Haffen, E., additional, Januel, D., additional, Leboyer, M., additional, Lefrere, A., additional, Llorca, P.M., additional, Marlinge, E., additional, Olié, E., additional, Polosan, M., additional, Schwan, R., additional, Walter, M., additional, Passerieux, C., additional, Roux, P., additional, Barteau, V., additional, Bensalem, S., additional, Godin, O., additional, Laouamri, H., additional, Souryis, K., additional, Hotier, S., additional, Pelletier, A., additional, Drancourt, N., additional, Sanchez, J.P., additional, Saliou, E., additional, Hebbache, C., additional, Petrucci, J., additional, Willaume, L., additional, Bourdin, E., additional, Bellivier, F., additional, Carminati, M., additional, Meheust, J., additional, Hennion, V., additional, Francisque, H., additional, Da Ros, N., additional, Desage, A., additional, Elkael, C., additional, Gard, S., additional, Hoorelbeke, F., additional, M'bailara, K., additional, Minois, I., additional, Sportich, J., additional, Boukhobza, L., additional, Benramdane, M., additional, Deffinis, B., additional, Denat, S., additional, Ducasse, D., additional, Gachet, M., additional, Molière, F., additional, Nass, L., additional, Tarquini, G., additional, Cermolacce, M., additional, Groppi, F., additional, Moreau, E., additional, Lescalier, L., additional, Pastol, J., additional, Viglianese, N., additional, Cohen, R., additional, Gross, G., additional, Schwitzer, T., additional, Wajsbrot-Elgrabli, O., additional, Bougerol, T., additional, Fredembach, B., additional, Denoual, Q, additional, Bertrand, A., additional, Pouchon, A., additional, Bonny, G., additional, Brehon, L., additional, Durand, L., additional, Feuga, V., additional, Galliot, A.M., additional, Kayser, N., additional, Cussac, I., additional, Dupont, M.A., additional, Loftus, J., additional, Medecin, I., additional, Mazer, N., additional, Portalier, C., additional, Scognamiglio, C., additional, Bing, A., additional, Laurent, P., additional, Llorca, PM., additional, Samalin, L., additional, Foures, L., additional, Lacelle, D., additional, Pires, S., additional, Doriat, C., additional, Blanc, O., additional, Bennabi, D., additional, and Nicolier, M., additional

Published
2023
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17. On the decadal scale correlation between African dust and Sahel rainfall: The role of Saharan heat low-forced winds.

Author

Wang, Weijie, Evan, Amato T, Flamant, Cyrille, and Lavaysse, Christophe

Subjects
Dust emission, Sahelian rainfall, the Saharan Heat Low, wind speed
Abstract

A large body of work has shown that year-to-year variations in North African dust emission are inversely proportional to previous-year monsoon rainfall in the Sahel, implying that African dust emission is highly sensitive to vegetation changes in this narrow transitional zone. However, such a theory is not supported by field observations or modeling studies, as both suggest that interannual variability in dust is due to changes in wind speeds over the major emitting regions, which lie to the north of the Sahelian vegetated zone. We reconcile this contradiction showing that interannual variability in Sahelian rainfall and surface wind speeds over the Sahara are the result of changes in lower tropospheric air temperatures over the Saharan heat low (SHL). As the SHL warms, an anomalous tropospheric circulation develops that reduces wind speeds over the Sahara and displaces the monsoonal rainfall northward, thus simultaneously increasing Sahelian rainfall and reducing dust emission from the major dust "hotspots" in the Sahara. Our results shed light on why climate models are, to date, unable to reproduce observed historical variability in dust emission and transport from this region.

Published
2015

18. Sexual dysfunctions are associated with major depression, chronic inflammation and anticholinergic consumption in the real-world schizophrenia FACE-SZ national cohort

Author

Fond, G., Godin, O., Dumontaud, M., Faget, C., Schürhoff, F., Berna, F., Aouizerate, B., Capdevielle, D., Chereau, I., D'Amato, T., Dubertret, C., Dubreucq, J., Leignier, S., Mallet, J., Misdrahi, D., Passerieux, C., Rey, R., Schandrin, A., Szoke, A., Urbach, M., Vidailhet, P., Leboyer, M., Lançon, C., Boyer, L., and Llorca, P.M.

Published
2019
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19. Machine learning for predicting psychotic relapse at 2 years in schizophrenia in the national FACE-SZ cohort

Author

Fond, G., Bulzacka, E., Boucekine, M., Schürhoff, F., Berna, F., Godin, O., Aouizerate, B., Capdevielle, D., Chereau, I., D'Amato, T., Dubertret, C., Dubreucq, J., Faget, C., Leignier, S., Lançon, C., Mallet, J., Misdrahi, D., Passerieux, C., Rey, R., Schandrin, A., Urbach, M., Vidailhet, P., Leboyer, M., Boyer, L., and Llorca, P.M.

Published
2019
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20. Relationship between childhood trauma and level of insight in schizophrenia: A path-analysis in the national FACE-SZ dataset

Author

Andrianarisoa, M.D., Aouizerate, B., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, Jm, D'Amato, T., Deloge, A., Delorme, C., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Hardy-Bayle, M.C., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Rey, R., Roman, C., Sebilleau, M., Schandrin, A., Schurhoff, F., Tessier, A., Tronche, Am, Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Pignon, Baptiste, Lajnef, Mohamed, Godin, Ophélia, Geoffray, Marie-Maud, Rey, Romain, Mallet, Jasmina, Dubertret, Caroline, Roux, Paul, Passerieux, Christine, Marulaz, Laurent, Brunel, Lore, Dubreucq, Julien, Leignier, Sylvain, Capdevielle, Delphine, André, Myrtille, Aouizerate, Bruno, Misdrahi, David, Berna, Fabrice, Vidailhet, Pierre, Chereau, Isabelle, Llorca, Pierre-Michel, Fond, Guillaume, Lançon, Christophe, Leboyer, Marion, and Schürhoff, Franck

Published
2019
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22. A multi-dimensional approach to the relationship between insight and aggressiveness in schizophrenia: Findings from the FACE-SZ cohort

Author

Andrianarisoa, M., Aouizerate, B., Bazin, N., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, J.M., D'Amato, T., Deloge, A., Delorme, C., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Ramet, L., Rey, L., Roman, C., Schandrin, A., Schürhoff, F., Tessier, A., Tronche, A.M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Norton, J., Raffard, S., Rey, R., Schurhoff, F., and Bonnet, S.

Published
2019
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24. Hypovitaminosis D is associated with depression and anxiety in schizophrenia: Results from the national FACE-SZ cohort.

Author

Fond, G, Godin, O, Schürhoff, F, Berna, F, Bulzacka, E, Andrianarisoa, M, Brunel, L, Aouizerate, B, Capdevielle, D, Chereau, I, Coulon, N, D'Amato, T, Dubertret, C, Dubreucq, J, Faget, C, Lançon, C, Leignier, S, Mallet, J, Misdrahi, D, Passerieux, C, Rey, R, Schandrin, A, Urbach, M, Vidailhet, P, Leboyer, M, Boyer, L, and Llorca, PM

Published
2018
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25. Psychiatric disability as mediator of the neurocognition-functioning link in schizophrenia spectrum disorders: SEM analysis using the Evaluation of Cognitive Processes involved in Disability in Schizophrenia (ECPDS) scale

Author

Andrianarisoa, M., Aouizerate, B., Bazin, N., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, Jm, D'Amato, T., Deloge, A., Delorme, C., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Ramet, L., Rey, R., Roman, C., Schandrin, A., Schürhoff, F., Tessier, A., Tronche, Am, Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Roux, Paul, Urbach, Mathieu, Fonteneau, Sandrine, Berna, Fabrice, Brunel, Lore, Capdevielle, Delphine, Chereau, Isabelle, Dubreucq, Julien, Faget-Agius, Catherine, Fond, Guillaume, Leignier, Sylvain, Perier, Claire-Cécile, Richieri, Raphaëlle, Schneider, Priscille, Schürhoff, Franck, Tronche, Anne-Marie, Yazbek, Hanan, Zinetti-Bertschy, Anna, Passerieux, Christine, and Brunet-Gouet, Eric

Published
2018
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26. Latent toxoplasma infection in real-world schizophrenia: Results from the national FACE-SZ cohort

Author

Andrianarisoa, M., Aouizerate, B., Bazin, N., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Coulon, N., Danion, J.M., D'Amato, T., Deloge, A., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Jarroir, M., Leignier, S., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Ramet, L., Rey, R., Roman, C., Schandrin, A., Schürhoff, F., Tessier, A., Tronche, A.M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Boyer, L., Godin, O., and Chereau, I.

Published
2018
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27. Influence of Venus and Mars in the cognitive sky of schizophrenia. Results from the first-step national FACE-SZ cohort

Author

Andrianarisoa, M., Aouizerate, B., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, Jm, D'Amato, T., Deloge, A., Delorme, C., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Hardy-Bayle, M.C., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Rey, R., Roman, C., Sebilleau, M., Schandrin, A., Schurhoff, F., Tessier, A., Tronche, Am, Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Boyer, L., Godin, O., Llorca, P.M., Chereau, I., Lancon, C., Roux, P., and Schürhoff, F.

Published
2018
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28. Towards an improved access to psychiatric rehabilitation: availability and effectiveness at 1-year follow-up of psychoeducation, cognitive remediation therapy, cognitive behaviour therapy and social skills training in the FondaMental Advanced Centers of Expertise-Schizophrenia (FACE-SZ) national cohort

Author

Dubreucq, Julien, Ycart, B., Gabayet, F., Perier, C. C., Hamon, A., Llorca, P. M., Boyer, L., Godin, O., Bulzacka, E., Andrianarisoa, M., Aouizerate, B., Berna, F., Brunel, L., Capdevielle, D., Chereau, I., D’Amato, T., Dubertret, C., Faget, C., Mallet, J., Misdrahi, D., Passerieux, C., Rey, R., Richieri, R., Schandrin, A., Schürhoff, F., Urbach, M., Vidailhet, P., Giraud-Baro, E., Fond, G., and FACE-SZ (FondaMental Academic Centers of Expertise for Schizophrenia) group

Published
2019
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29. Tobacco smoking is associated with antipsychotic medication, physical aggressiveness, and alcohol use disorder in schizophrenia: results from the FACE-SZ national cohort

Author

Mallet, J., Le Strat, Y., Schürhoff, F., Mazer, N., Portalier, C., Andrianarisoa, M., Aouizerate, B., Berna, F., Brunel, L., Capdevielle, D., Chereau, I., D’Amato, T., Dubreucq, J., Faget, C., Gabayet, F., Honciuc, R. M., Lançon, C., Llorca, P. M., Misdrahi, D., Rey, R., Roux, P., Schandrin, A., Urbach, M., Vidailhet, P., Fond, G., Dubertret, C., and the FACE-SZ (FondaMental Academic Centers of Expertise for Schizophrenia) group

Published
2019
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30. Predictors of rapid high weight gain in schizophrenia: Longitudinal analysis of the French FACE-SZ cohort

Author

Andrianarisoa, M., Aouizerate, B., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, J.M., D'Amato, T., Deloge, A., Delorme, C., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Hardy-Bayle, M.C., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Rey, R., Roman, C., Sebilleau, M., Schandrin, A., Schürhoff, F., Tessier, A., Tronche, A.M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilain, J., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Godin, O., Boyer, L., Richieri, R., and Costagliola, D.

Published
2017
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31. Cigarette smoking and schizophrenia: a specific clinical and therapeutic profile? Results from the FACE-Schizophrenia cohort

Author

Andrianarisoa, M., Aouizerate, B., Bazin, N., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, J.M., D'Amato, T., Deloge, A., Delorme, C., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Ramet, L., Rey, R., Roman, C., Schandrin, A., Schürhoff, F., Tessier, A., Tronche, A.M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Mazer, N., Chereau, I., and Roux, P.

Published
2017
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33. Childhood trauma, depression and negative symptoms are independently associated with impaired quality of life in schizophrenia. Results from the national FACE-SZ cohort

Author

Andrianarisoa, M., Aouizerate, B., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, J.M., D'Amato, T., Deloge, A., Delorme, C., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Hardy-Bayle, M.C., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Rey, R., Roman, C., Sebilleau, M., Schandrin, A., Schurhoff, F., Tessier, A., Tronche, A.M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Boyer, L., Godin, O., Richieri, R., and Schürhoff, F.

Published
2017
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35. Relationships between low-grade peripheral inflammation and psychotropic drugs in schizophrenia: results from the national FACE-SZ cohort

Author

Fond, G., Resseguier, N., Schürhoff, F., Godin, O., Andrianarisoa, M., Brunel, L., Bulzacka, E., Aouizerate, B., Berna, F., Capdevielle, D., Chereau, I., D’Amato, T., Dubertret, C., Dubreucq, J., Faget, C., Gabayet, F., Lançon, C., Llorca, P. M., Mallet, J., Misdrahi, D., Passerieux, C., Rey, R., Schandrin, A., Urbach, M., Vidailhet, P., Boyer, L., Leboyer, M., and the FACE-SZ (FondaMental Academic Centers of Expertise for Schizophrenia) group

Published
2018
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37. Akathisia: prevalence and risk factors in a community-dwelling sample of patients with schizophrenia. Results from the FACE-SZ dataset

Author

Aouizerate, B., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, J.M., D'Amato, T., Deloge, A., Delorme, C., Denizot, H., De Pradier, M., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Hardy-Bayle, M.C., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Rey, R., Roman, C., Sebilleau, M., Schandrin, A., Schurhoff, F., Tessier, A., Tronche, A.M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilain, J., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Boyer, L., Chereau, I., and Lancon, C.

Published
2015
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38. Metabolic syndrome, abdominal obesity and hyperuricemia in schizophrenia: Results from the FACE-SZ cohort

Author

Aouizerate, B., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, J.M., D'Amato, T., Deloge, A., Delorme, C., Denizot, H., Depradier, M., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Hardy-Bayle, M.C., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Rey, R., Roman, C., Sebilleau, M., Schandrin, A., Schürhoff, F., Tessier, A., Tronche, A.M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., Godin, O., Gaman, A., Chereau, I., Richieri, R., Vidalhet, P., and Girerd, N.

Published
2015
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41. On the Misclassification of Dust as Cloud at an AERONET Site in the Sonoran Desert

Author

Blake Walkowiak, Amato T. Evan, and Robert Frouin

Subjects
Atmospheric Science, business.industry, Climatology, Desert (particle physics), Environmental science, Ocean Engineering, Cloud computing, business, AERONET
Abstract

Here we present retrievals of aerosol optical depth τ from an Aerosol Robotic Network (AERONET) station in the southeastern corner of California, an area where dust storms are frequent. By combining AERONET data with collocated ceilometer measurements, camera imagery, and satellite data, we show that during significant dust outbreaks the AERONET cloud-screening algorithm oftentimes classifies dusty measurements as cloud contaminated, thus removing them from the aerosol record. During dust storms we estimate that approximately 85% of all dusty retrievals of τ and more than 95% of retrievals when τ > 0.1 are rejected, resulting in a factor-of-2 reduction in dust-storm averaged τ. We document the specific components in the screening algorithm responsible for the misclassification. We find that a major reason for the loss of these dusty measurements is the high temporal variability in τ during the passage of dust storms over the site, which itself is related to the proximity of the site to the locations of emission. We describe a method to recover these dusty measurements that is based on collocated ceilometer measurements. These results suggest that AERONET sites that are located close to dust source regions may require ancillary measurements to aid in the identification of dust. Significance Statement In this study we demonstrate that, during dust storms, measurements made with a sun photometer at an AERONET site in the western Sonoran Desert are frequently classified as cloud contaminated by the network’s processing algorithm. We identify the various algorithmic tests that result in the misclassification and discuss the physical reasons why dust typically fails those tests. We then present a method to restore these data that utilizes measurements from a collocated ceilometer. This work highlights the challenges, and one solution, to operating an AERONET site in a region that is close to the sources of airborne dust.

Published
2022

42. Mineral dust aerosol impact on global climate and climate change

Author

Jasper F. Kok, Trude Storelvmo, Vlassis A. Karydis, Adeyemi A. Adebiyi, Natalie M. Mahowald, Amato T. Evan, Cenlin He, and Danny M. Leung

Subjects
Atmospheric Science, ddc:570, Pollution, Nature and Landscape Conservation, Earth-Surface Processes
Abstract

Mineral dust aerosols impact the energy budget of Earth through interactions with radiation, clouds, atmospheric chemistry, the cryosphere and biogeochemistry. In this Review, we summarize these interactions and assess the resulting impacts of dust, and of changes in dust, on global climate and climate change. The total effect of dust interactions on the global energy budget of Earth — the dust effective radiative effect — is −0.2 ± 0.5 W m−2 (90% confidence interval), suggesting that dust net cools the climate. Global dust mass loading has increased 55 ± 30% since pre-industrial times, driven largely by increases in dust from Asia and North Africa, leading to changes in the energy budget of Earth. Indeed, this increase in dust has produced a global mean effective radiative forcing of −0.07 ± 0.18 W m−2, somewhat counteracting greenhouse warming. Current climate models and climate assessments do not represent the historical increase in dust and thus omit the resulting radiative forcing, biasing climate change projections and assessments of climate sensitivity. Climate model simulations of future changes in dust diverge widely and are very uncertain. Further work is thus needed to constrain the radiative effects of dust on climate and to improve the representation of dust in climate models.

Published
2023

43. Nicotine dependence is associated with depression and childhood trauma in smokers with schizophrenia: results from the FACE-SZ dataset

Author

Rey, Romain, D’Amato, Thierry, Boyer, Laurent, Brunel, Lore, Aouizerate, Bruno, Berna, Fabrice, Capdevielle, Delphine, Chereau, Isabelle, Chesnoy-Servanin, Gabrielle, Denizot, Hélène, Dorey, Jean-Michel, Dubertret, Caroline, Dubreucq, Julien, Faget, Catherine, Gabayet, Franck, Lancon, Christophe, Mallet, Jasmina, Misdrahi, David, Passerieux, Christine, Schandrin, Aurélie, Schürhoff, Franck, Urbach, Mathieu, Vidailhet, Pierre, Llorca, Pierre-Michel, Fond, Guillaume, Andrianarisoa, M., Andrianarisoa, M., Aouizerate, B., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, J.M., D’Amato, T., Deloge, A., Delorme, C., Denizot, H., Dorey, J.M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Hardy-Bayle, M.C., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P.M., Mallet, J., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Rey, R., Roman, C., Sebilleau, M., Schandrin, A., Schürhoff, F., Tessier, A., Tronche, A.M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilain, J., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., and The FACE-SZ (FondaMental Academic Centers of Expertise for Schizophrenia) group

Published
2017
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44. Birth by cesarean section and schizophrenia: results from the multicenter FACE-SZ data-set

Author

Fond, G., Bulzacka, E., Boyer, L., Llorca, P. M., Godin, O., Brunel, L., Andrianarisoa, M. G., Aouizerate, B., Berna, F., Capdevielle, D., Chereau, I., Denizot, H., Dorey, J. M., Dubertret, C., Dubreucq, J., Faget, C., Gabayet, F., Le Strat, Y., Micoulaud-Franchi, J. A., Misdrahi, D., Rey, R., Richieri, R., Roger, M., Passerieux, C., Schandrin, A., Urbach, M., Vidalhet, P., Schürhoff, F., Leboyer, M., Aouizerate, B., Berna, F., Blanc, O., Brunel, L., Bulzacka, E., Capdevielle, D., Chereau-Boudet, I., Chesnoy-Servanin, G., Danion, J. M., D’Amato, T., Deloge, A., Delorme, C., Denizot, H., De Pradier, M., Dorey, J. M., Dubertret, C., Dubreucq, J., Faget, C., Fluttaz, C., Fond, G., Fonteneau, S., Gabayet, F., Giraud-Baro, E., Hardy-Bayle, M. C., Lacelle, D., Lançon, C., Laouamri, H., Leboyer, M., Le Gloahec, T., Le Strat, Y., Llorca, P. M., Metairie, E., Misdrahi, D., Offerlin-Meyer, I., Passerieux, C., Peri, P., Pires, S., Portalier, C., Rey, R., Roman, C., Sebilleau, M., Schandrin, A., Schurhoff, F., Tessier, A., Tronche, A. M., Urbach, M., Vaillant, F., Vehier, A., Vidailhet, P., Vilà, E., Yazbek, H., Zinetti-Bertschy, A., and FondaMental Academic Centers of Expertise for Schizophrenia (FACE-SZ) Group

Published
2017
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45. Chronic low-grade peripheral inflammation is associated with severe nicotine dependence in schizophrenia: results from the national multicentric FACE-SZ cohort

Author

Fond, G., Berna, F., Andrianarisoa, M., Godin, O., Leboyer, M., Brunel, L., Aouizerate, B., Capdevielle, D., Chereau, I., D’Amato, T., Denizot, H., Dubertret, C., Dubreucq, J., Faget, C., Gabayet, F., Llorca, P. M., Mallet, J., Misdrahi, D., Passerieux, C., Richieri, R., Rey, R., Schandrin, A., Urbach, M., Vidailhet, P., Boyer, L., Schürhoff, F., and The FACE-SZ (FondaMental Academic Centers of Expertise for Schizophrenia) group

Published
2017
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48. Evidence for climate change in the satellite cloud record

Author

Norris, Joel R., Allen, Robert J., Evan, Amato T., Zelinka, Mark D., O'Dell, Christopher W., and Klein, Stephen A.

Subjects
Clouds -- Analysis, Artificial satellites -- Environmental aspects, Climatic changes -- Analysis, Solar radiation -- Analysis, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Clouds substantially affect Earth's energy budget by reflecting solar radiation back to space and by restricting emission of thermal radiation to space (1). They are perhaps the largest uncertainty in our understanding of climate change, owing to disagreement among climate models and observational datasets over what cloud changes have occurred during recent decades and will occur in response to global warming (2,3). This is because observational systems originally designed for monitoring weather have lacked sufficient stability to detect cloud changes reliably over decades unless they have been corrected to remove artefacts (4,5). Here we show that several independent, empirically corrected satellite records exhibit large-scale patterns of cloud change between the 1980s and the 2000s that are similar to those produced by model simulations of climate with recent historical external radiative forcing. Observed and simulated cloud change patterns are consistent with poleward retreat of mid-latitude storm tracks, expansion of subtropical dry zones, and increasing height of the highest cloud tops at all latitudes. The primary drivers of these cloud changes appear to be increasing greenhouse gas concentrations and a recovery from volcanic radiative cooling. These results indicate that the cloud changes most consistently predicted by global climate models are currently occurring in nature., The International Satellite Cloud Climatology Project (ISCCP) dataset and the Extended Pathfinder Atmospheres (PATMOS-x) dataset are the two longest satellite records of cloudiness (6,7). The datasets consist of cloud retrievals [...]

Published
2016

49. The past, present and future of African dust

Author

Evan, Amato T., Flamant, Cyrille, Gaetani, Marco, and Guichard, Francoise

Subjects
Dynamics of a particle -- Observations, Dust -- Environmental aspects, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

African dust emission and transport exhibits variability on diurnal (1) to decadal (2) timescales and is known to influence processes such as Amazon productivity (3), Atlantic climate modes (4), regional atmospheric composition and radiative balance (5) and precipitation in the Sahel (6). To elucidate the role of African dust in the climate system, it is necessary to understand the factors governing its emission and transport. However, African dust is correlated with seemingly disparate atmospheric phenomena, including the El Nino/Southern Oscillation (7,8), the North Atlantic Oscillation (9), the meridional position of the intertropical convergence zone (10,11), Sahelian rainfall (8) and surface temperatures over the Sahara Desert (12), all of which obfuscate the connection between dust and climate. Here we show that the surface wind field responsible for most of the variability in North African dust emission reflects the topography of the Sahara, owing to orographic acceleration of the surface flow. As such, the correlations between dust and various climate phenomena probably arise from the projection of the winds associated with these phenomena onto an orographically controlled pattern of wind variability. A 161-year time series of dust from 1851 to 2011, created by projecting this wind field pattern onto surface winds from a historical reanalysis (13), suggests that the highest concentrations of dust occurred from the 1910s to the 1940s and the 1970s to the 1980s, and that there have been three periods of persistent anomalously low dust concentrations--in the 1860s, 1950s and 2000s. Projections of the wind pattern onto climate models give a statistically significant downward trend in African dust emission and transport as greenhouse gas concentrations increase over the twenty-first century, potentially associated with a slow-down of the tropical circulation. Such a dust feedback, which is not represented in climate models, may be of benefit to human and ecosystem health in West Africa via improved air quality (14) and increased rainfall (6). This feedback may also enhance warming of the tropical North Atlantic (15), which would make the basin more suitable for hurricane formation and growth (16)., We perform an eigenanalysis of zonal and meridional wind speeds at 10 m above the surface from the European Centre for Medium-Range Weather Forecasts Interim reanalysis product (17) (ERA-I) to [...]

Published
2016

50. A mechanism for regional variations in snowpack melt under rising temperature

Author

Amato T. Evan and Ian Eisenman

Subjects
0303 health sciences, 010504 meteorology & atmospheric sciences, Environmental Science (miscellaneous), Snowpack, Annual cycle, 01 natural sciences, The arctic, 03 medical and health sciences, Climatology, Environmental science, Mean radiant temperature, Seasonal cycle, Social Sciences (miscellaneous), 030304 developmental biology, 0105 earth and related environmental sciences
Abstract

As the planet warms, mountain snowpack is expected to melt progressively earlier each spring. However, analysis of measurements in the western United States shows that the change in the date when snowpack disappears is not uniform: for 1 °C of warming, snowpack disappears 30 days earlier in some regions, whereas there is almost no change in others. Here we present an idealized physical model that simulates the timing of snowpack melt under changing temperature and use it to show that this observed disparity in the sensitivity of snowpack disappearance to warming results from a mechanism related to the sinusoidal shape of the annual cycle of temperature. Applying this model globally, we show that under uniform warming the timing of snowpack disappearance will change most rapidly in coastal regions, the Arctic, the western United States, Central Europe and South America, with much smaller changes in the northern interiors of North America and Eurasia. Warming causes mountain snowpack to melt earlier during local spring. An idealized model suggests that melt date sensitivity to warming depends largely on mean temperature and its seasonal cycle; the largest sensitivities are seen in coastal regions, the Arctic, western United States, Central Europe and South America.

Published
2021

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