Search

Your search keyword '"Crespi, Mattia Giovanni"' showing total 187 results
Start Over Author "Crespi, Mattia Giovanni"
187 results on '"Crespi, Mattia Giovanni"'

1. Chapter Pyrgi: analysis of possible climatic effects on a coastal archaeological site

Author

Coletta, Virginia, Allasia, Paolo, Bonazza, Alessandra, CIARRAVANO, ALESSANDRO, Federico, Stefano, Notti, Davide, Prestileo, Fernanda, TORCASIO, ROSA CLAUDIA, Crespi, Mattia Giovanni, and Dietrich, Stefano

Subjects
Geomatic, Hydrogeology, Meteorology, Coastal Cultural Heritage, Pyrgi
Abstract

This work refers to an interdisciplinary study on the archaeological site of Pyrgi, an Etruscan harbour still under excavation, located on the Lazio’s coast in Santa Severa, in the province of Rome. The objective of the research is to assess the main cause of the floods and the time the water stays in the site to determine if the floods are periodic phenomena over time or random events for guarantee a correct conservation of the site . The study is based on the combined use of geomatic technologies, meteorological and climatic models, and hydrogeological knowledge.

Published
2020
Full Text
View/download PDF

3. Italian lakes water level monitoring through GEDI altimetric data within Google Earth Engine: a preliminary analysis

Author

Hamoudzadeh, Alireza, Ravanelli, Roberta, and Crespi, Mattia Giovanni

Abstract

Inland water bodies are essential sources of freshwater for several applications, making their level monitoring crucial for understanding the impact of climate change and human activities. The Global Ecosystem Dynamics Investigation (GEDI) [1,2] mission utilizes a spaceborne LiDAR altimeter to produce high-resolution measurements of Earth's canopy. GEDI has recently been added in Google Earth Engine (GEE), a cloud-based platform integrating different datasets and providing efficient analysis tools. This study aims to evaluate the accuracy of GEDI altimetric data over water bodies, comparing the levels recorded by GEDI with ground truth measurements. Furthermore, a robust procedure to remove outliers is proposed and implemented within GEE. Specifically, a number of lakes all over Italy were selected and analyzed for the period from April 2019 to June 2022. The proposed outlier detection methodology consists of two stages. The first employs two flags provided by GEDI metadata. The "quality_flag" and "degrade_flag" provide information about the footprint validity, based respectively on GEDI signal anomalies and the degradation state of pointing or positioning information. Secondly, the methodology employs a robust implementation of the standard 3σ-test, utilizing the Normalized Median Absolute Deviation (NMAD) to identify outliers: measurements not within the range of -/+3*NMAD from the median are removed. After the outlier removal, we obtain an average NMAD of 0.11m over the ten lakes for the considered period.[1] Dubayah et al., 2021. GEDI L3 gridded land surface metrics.[2] University of Maryland, 2022. GEDI ecosystem lidar. www.gedi.umd.edu., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)

Published
2023

6. Digitalization and defects analysis for the maintenance of mechanized tunnels

Author

Federico, Foria, Gabriele, Miceli, Nascetti, Andrea, Loprencipe, Giuseppe, Crespi, Mattia Giovanni, Belloni, Valeria, Ravanelli, Roberta, and Cordaro, Sara

Subjects
tunnelling, maintenance, deep learning, ARCHITA-MIRET Management and Identification of the Risk for Existing Tunnels
Published
2022

25. Tectonically asymmetric earth

Author

Doglioni, Carlo, Carminati, Eugenio Ambrogio Maria, Crespi, Mattia Giovanni, Cuffaro, Marco, Panza, G., and Riguzzi, F.

Published
2011

35. Asymmetric Earth

Author

Doglioni, Carlo, Carminati, Eugenio Ambrogio Maria, Crespi, Mattia Giovanni, Cuffaro, Marco, ISMAIL ZADEH, A., Levshin, A., Panza, G., and Riguzzi, F.

Published
2010

37. Coastline mapping exploiting EO data

Author

Baiocchi, Valerio, Crespi, Mattia Giovanni, DEL FRATE, F., DEL GUZZO, F., Dominici, D., Latini, D., Lelo, Keti, Minchella, A., Palazzo, F., and Remondiere, S.

Subjects
Settore ING-INF/02 - Campi Elettromagnetici
Published
2010

Catalog

Books, media, physical & digital resources
See catalog results