Search

Your search keyword '"Gutiérrez, J.M."' showing total 697 results
Start Over Author "Gutiérrez, J.M."
697 results on '"Gutiérrez, J.M."'

10. Bringing it all together: science priorities for improved understanding of Earth system change and to support international climate policy

Author

Jones, C.G., Adloff, F., Booth, B.B.B., Cox, P.M., Eyring, V., Friedlingstein, P., Frieler, K., Hewitt, H.T., Jeffery, H.A., Joussaume, S., Koenigk, T., Lawrence, B.N., O'Rourke, E., Roberts, M.J., Sanderson, B.M., Séférian, R., Somot, S., Vidale, P.L., van Vuuren, D., Acosta, M., Bentsen, M., Bernardello, R., Betts, R., Blockley, E., Boé, J., Bracegirdle, T., Braconnot, P., Brovkin, V., Buontempo, C., Doblas-Reyes, F., Donat, M., Epicoco, I., Falloon, P., Fiore, S., Frölicher, T., Fučkar, N.S., Gidden, M., Goessling, H.F., Graversen, R.G., Gualdi, S., Gutiérrez, J.M., Ilyina, T., Jacob, D., Jones, C.D., Juckes, M., Kendon, E., Kjellström, E., Knutti, R., Lowe, J., Mizielinski, M., Nassisi, P., Obersteiner, M., Regnier, P., Roehrig, R., Salas y Mélia, D., Schleussner, C.-F., Schulz, M., Scoccimarro, E., Terray, L., Thiemann, H., Wood, R.A., Yang, S., Zaehle, S., Jones, C.G., Adloff, F., Booth, B.B.B., Cox, P.M., Eyring, V., Friedlingstein, P., Frieler, K., Hewitt, H.T., Jeffery, H.A., Joussaume, S., Koenigk, T., Lawrence, B.N., O'Rourke, E., Roberts, M.J., Sanderson, B.M., Séférian, R., Somot, S., Vidale, P.L., van Vuuren, D., Acosta, M., Bentsen, M., Bernardello, R., Betts, R., Blockley, E., Boé, J., Bracegirdle, T., Braconnot, P., Brovkin, V., Buontempo, C., Doblas-Reyes, F., Donat, M., Epicoco, I., Falloon, P., Fiore, S., Frölicher, T., Fučkar, N.S., Gidden, M., Goessling, H.F., Graversen, R.G., Gualdi, S., Gutiérrez, J.M., Ilyina, T., Jacob, D., Jones, C.D., Juckes, M., Kendon, E., Kjellström, E., Knutti, R., Lowe, J., Mizielinski, M., Nassisi, P., Obersteiner, M., Regnier, P., Roehrig, R., Salas y Mélia, D., Schleussner, C.-F., Schulz, M., Scoccimarro, E., Terray, L., Thiemann, H., Wood, R.A., Yang, S., and Zaehle, S.

Abstract

We review how the international modelling community, encompassing integrated assessment models, global and regional Earth system and climate models, and impact models, has worked together over the past few decades to advance understanding of Earth system change and its impacts on society and the environment and thereby support international climate policy. We go on to recommend a number of priority research areas for the coming decade, a timescale that encompasses a number of newly starting international modelling activities, as well as the IPCC Seventh Assessment Report (AR7) and the second UNFCCC Global Stocktake. Progress in these priority areas will significantly advance our understanding of Earth system change and its impacts, increasing the quality and utility of science support to climate policy. We emphasize the need for continued improvement in our understanding of, and ability to simulate, the coupled Earth system and the impacts of Earth system change. There is an urgent need to investigate plausible pathways and emission scenarios that realize the Paris climate targets – for example, pathways that overshoot 1.5 or 2 °C global warming, before returning to these levels at some later date. Earth system models need to be capable of thoroughly assessing such warming overshoots – in particular, the efficacy of mitigation measures, such as negative CO2 emissions, in reducing atmospheric CO2 and driving global cooling. An improved assessment of the long-term consequences of stabilizing climate at 1.5 or 2 °C above pre-industrial temperatures is also required. We recommend Earth system models run overshoot scenarios in CO2-emission mode to more fully represent coupled climate–carbon-cycle feedbacks and, wherever possible, interactively simulate other key Earth system phenomena at risk of rapid change during overshoot. Regional downscaling and impact models should use forcing data from these simulations, so impact and regional climate projections cover a more comp

Published
2024
Full Text
View/download PDF

32. Indicators of Global Climate Change 2022: annual update of large-scale indicators of the state of the climate system and human influence

Author

Forster, P.M., Smith, C.J., Walsh, T., Lamb, W.F., Lamboll, R., Hauser, M., Ribes, A., Rosen, D., Gillett, N., Palmer, M.D., Rogelj, J., von Schuckmann, K., Seneviratne, S.I., Trewin, B., Zhang, X., Allen, M., Andrew, R., Birt, A., Borger, A., Boyer, T., Broersma, J.A., Cheng, L., Dentener, F., Friedlingstein, P., Gutiérrez, J.M., Gütschow, J., Hall, B., Ishii, M., Jenkins, S., Lan, X., Lee, J., Morice, C., Kadow, C., Kennedy, J., Killick, R., Minx, J.C., Naik, V., Peters, G.P., Pirani, A., Pongratz, J., Schleussner, C.F., Szopa, S., Thorne, P., Rohde, R., Rojas Corradi, M., Schumacher, D., Vose, R., Zickfeld, K., Masson-Delmotte, V., Zhai, P., Forster, P.M., Smith, C.J., Walsh, T., Lamb, W.F., Lamboll, R., Hauser, M., Ribes, A., Rosen, D., Gillett, N., Palmer, M.D., Rogelj, J., von Schuckmann, K., Seneviratne, S.I., Trewin, B., Zhang, X., Allen, M., Andrew, R., Birt, A., Borger, A., Boyer, T., Broersma, J.A., Cheng, L., Dentener, F., Friedlingstein, P., Gutiérrez, J.M., Gütschow, J., Hall, B., Ishii, M., Jenkins, S., Lan, X., Lee, J., Morice, C., Kadow, C., Kennedy, J., Killick, R., Minx, J.C., Naik, V., Peters, G.P., Pirani, A., Pongratz, J., Schleussner, C.F., Szopa, S., Thorne, P., Rohde, R., Rojas Corradi, M., Schumacher, D., Vose, R., Zickfeld, K., Masson-Delmotte, V., and Zhai, P.

Abstract

Intergovernmental Panel on Climate Change (IPCC) assessments are the trusted source of scientific evidence for climate negotiations taking place under the United Nations Framework Convention on Climate Change (UNFCCC), including the first global stocktake under the Paris Agreement that will conclude at COP28 in December 2023. Evidence-based decision-making needs to be informed by up-to-date and timely information on key indicators of the state of the climate system and of the human influence on the global climate system. However, successive IPCC reports are published at intervals of 5–10 years, creating potential for an information gap between report cycles. We follow methods as close as possible to those used in the IPCC Sixth Assessment Report (AR6) Working Group One (WGI) report. We compile monitoring datasets to produce estimates for key climate indicators related to forcing of the climate system: emissions of greenhouse gases and short-lived climate forcers, greenhouse gas concentrations, radiative forcing, surface temperature changes, the Earth's energy imbalance, warming attributed to human activities, the remaining carbon budget, and estimates of global temperature extremes. The purpose of this effort, grounded in an open data, open science approach, is to make annually updated reliable global climate indicators available in the public domain (https://doi.org/10.5281/zenodo.8000192, Smith et al., 2023a). As they are traceable to IPCC report methods, they can be trusted by all parties involved in UNFCCC negotiations and help convey wider understanding of the latest knowledge of the climate system and its direction of travel. The indicators show that human-induced warming reached 1.14 [0.9 to 1.4] ∘C averaged over the 2013–2022 decade and 1.26 [1.0 to 1.6] ∘C in 2022. Over the 2013–2022 period, human-induced warming has been increasing at an unprecedented rate of over 0.2 ∘C per decade. This high rate of warming is caused by a combination of greenhouse gas emi

Published
2023
Full Text
View/download PDF

33. An Updated Combined Biomass index of abundance for North Atlantic Swordfish Stock 1963-2012

Author

Ortiz-de-Urbina-Gutiérrez, J.M. (José María), Mejuto-García, J. (Jaime), Andrushchenko, I. (Irene), Walter, J., Neves-dos-Santos, M., and Abid, N.

Subjects
Pesquerías, Centro Oceanográfico de A Coruña
Abstract

Surplus Production Models of North Atlantic swordfish have been used in addition to age structured virtual population analyses by ICCAT's SCRS to evaluate the status of the resource and to provide a basis for management advice. Production models require a standardized index of relative abundance in terms of biomass. The standardized biomass index of abundance developed for the 2006, 2008 and 2012 ICCAT SCRS meetings for North Atlantic swordfish was revised and updated with data through 2015. Generalized Linear Modeling (GLM) procedures were used to standardize swordfish catch (biomass) and effort (number of hooks) data from the major longline fleets operating in the North Atlantic; United States, EU-Spain, Canada, Japan, Morocco and EU-Portugal. As in past analyses, main effects included: year, area, quarter, a nation-operation variable accounting for gear and operational differences thought to influence swordfish catchability, and a target variable to account for trips where fishing operations varied according to the main target species. Interactions among main factors were also evaluated. 0

Published
2023

34. Atlantic bonito (Sarda sarda Bloch, 1793)

Author

Saber, S. (Sámar), Macías-López, A.D. (Ángel David), and Ortiz-de-Urbina-Gutiérrez, J.M. (José María)

Subjects
Centro Oceanográfico de Málaga, Pesquerías
Published
2023

36. Direct ageing of Atlantic Bluefin tuna (Thunnus thynnus) from East Atlantic and Western Mediterranean using dorsal fin spines

Author

Luque, P.L., Rodriguez-Marin, E. (Enrique), Ruiz, M. (Marta), Quelle, P. (Pablo), Landa, J. (Jorge), Macías-López, A.D. (Ángel David), and Ortiz-de-Urbina-Gutiérrez, J.M. (José María)

Subjects
Centro Oceanográfico de Santander, Pesquerías
Abstract

This study deals with important methodology issues that affect age estimates of eastern Atlantic bluefin tuna Thunnus thynnus using dorsal fin spines. Nearly 3800 spine sections were used from fish caught in the north-east Atlantic Ocean and western Mediterranean Sea over a 21 year period. Edge type and marginal increment analyses indicated a yearly periodicity of annulus formation with the translucent bands (50% of occurrence) appearing from October to May. Nucleus vascularization seriously affected specimens older than 6 years, with the disappearance of 40-50% of the presumed annuli by that age. An alternate sectioning location was a clear improvement and this finding is an important contribution to the methodology of using this structure for ageing the full-length range of eastern T. thynnus. Finally, there were no significant differences between the coefficients of von Bertalanffy growth model estimated from mean length at age data (L∞ = 327.4; k = 0.097; t0 = -0.838) and those estimated from the growth curves accepted for the eastern and western T. thynnus management units., Sí

Published
2023

Catalog

Books, media, physical & digital resources
See catalog results