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1. Identity statement
Reference TypeConference Paper (Conference Proceedings)
Sitemtc-m21c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34R/449N29E
Repositorysid.inpe.br/mtc-m21c/2021/03.04.19.59
Last Update2021:03.04.19.59.01 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21c/2021/03.04.19.59.01
Metadata Last Update2021:03.05.14.44.57 (UTC) simone
Secondary KeyINPE--PRE/
Citation KeyCaytoIMMTCVAYGSWGRBSEA:2020:MuChGl
TitleMulti-annual changes of glacial lakes in Peru and their links to climate change and glofs
Year2020
Access Date2024, May 18
Secondary TypePRE CI
Number of Files1
Size2507 KiB
2. Context
Author 1 Cayto, E. Turpo
 2 Infantes, H. Jara
 3 Melgarejo, E.
 4 Meyhuay, Tinoco
 5 Torres, J.
 6 Caballero, A.
 7 Villafane, H.
 8 Araujo, J.
 9 Yarleque, C.
10 Garay, D.
11 Stephan, H.
12 Wood, J.
13 Glassner, N.
14 Ryan, W.
15 Bennett, J.
16 Shannon, S.
17 Espinoza, R.
18 Almeida, Cláudia Maria de
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Affiliation 1 Institute of the Common Good (IBC)
 2 National Research Institute for Glaciers and Mountain's Ecosystems (INAIGEM)
 3 National Research Institute for Glaciers and Mountain's Ecosystems (INAIGEM)
 4 Santiago Antúnez de Mayolo National University (UNASAM)
 5 National Research Institute for Glaciers and Mountain's Ecosystems (INAIGEM)
 6 National Research Institute for Glaciers and Mountain's Ecosystems (INAIGEM)
 7 National Research Institute for Glaciers and Mountain's Ecosystems (INAIGEM)
 8 National Research Institute for Glaciers and Mountain's Ecosystems (INAIGEM)
 9 National Research Institute for Glaciers and Mountain's Ecosystems (INAIGEM)
10 National Research Institute for Glaciers and Mountain's Ecosystems (INAIGEM)
11 University of Exeter
12 University of Exeter
13 University of Exeter
14 University of Exeter
15 University of Exeter
16 University of Exeter
17 La Molina National Agrarian University
18 Instituto Nacional de Pesquisas Espaciais (INPE)
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Conference NameAGU Fall Meeting
Conference LocationOnline
Date1-17 dec.
Book TitleProceedings
History (UTC)2021-03-04 20:04:26 :: simone -> administrator :: 2020
2021-03-04 23:27:19 :: administrator -> simone :: 2020
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
AbstractThe effects of climate change are causing a profound reduction in glacier's coverage in the Cordilleras of the Peruvian Andes, giving rise to the development and growth of proglacial lakes. These glacial lakes can represent a significant hazard in the form of Glacier Lake Outburst Floods (GLOF) that have the potential to impact vulnerable populations and infrastructure located downstream of glaciated areas. In this study, we present a long-term spatio-temporal analysis of glacial lakes across the Peruvian Andes and address possible connections with GLOF events and climate change. Accessed and processed using Google Earth Engine and QGIS, this analysis was conducted using Landsat 5, 7 and 8 satellite data (Surface Reflectance Tier 1) acquired between 1984 and 2019. We detected and estimated glacier lake surface area changes using a robust semi-automated method which coupled empirical decision trees, sub-pixel analysis, spectral and topographic indices with many temporal and spatial filters to improve the quality of the glacial lake classifications. Using this classification as a result, we were able to categorize the glacial lakes based on their surface change dynamics over the past three decades. Results highlight a distinct spatial variability in glacial lake changes across the 20 Cordilleras of the Peruvian Andes. Overall, 12 Cordilleras experienced an increase in glacial lake area during the observation period (with increases oscillating from 1% to 38%), whilst the remaining 8 experienced a reduction in area (with decreases ranging from reductions of -2% to -57%). A multi-temporal validation of the semi-automated glacier lake classification method, utilising manually digitized data, revealed glacial lake mapping overall accuracy above >80% across the study area.
AreaSRE
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Multi-annual changes of...
doc Directory Contentaccess
source Directory Contentthere are no files
agreement Directory Content
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4. Conditions of access and use
data URLhttp://urlib.net/ibi/8JMKD3MGP3W34R/449N29E
zipped data URLhttp://urlib.net/zip/8JMKD3MGP3W34R/449N29E
Languageen
Target File3_AGU - iPosterSessions.com.pdf
User Groupsimone
Reader Groupadministrator
simone
Visibilityshown
Update Permissionnot transferred
5. Allied materials
Mirror Repositoryurlib.net/www/2017/11.22.19.04.03
Next Higher Units8JMKD3MGPCW/3ER446E
Citing Item Listsid.inpe.br/mtc-m21/2012/07.13.14.43.49 1
Host Collectionurlib.net/www/2017/11.22.19.04
6. Notes
Empty Fieldsarchivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume
7. Description control
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