Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional de Geociências - RIGEO |
Texto Completo: | https://rigeo.cprm.gov.br/handle/doc/21671 https://doi.org/10.3390/w12051244 |
Resumo: | The Amazon River Basin is the largest rainforest in the world. Long-term changes in precipitation trends in the basin can affect the continental water balance and the world’s climate. The precipitation trends in the basin are not spatially uniform; estimating these trends only at locations where station data are available has an inherent bias. In the present research, the spatially distributed annual precipitation trends were studied in the Amazon River Basin from the year 1981 to 2017 using the Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) product. The precipitation trends were also cross-validated at locations where station data were available. The research also identifies clusters within the basin where trends showed a larger increase (nine clusters) or decrease in precipitation (10 clusters). The overall precipitation trend in the Amazon River Basin over 37 years showed a 2.8 mm/year increase, with a maximum of 45.1 mm/year and minimum of −37.9 mm/year. The highest positive cluster was in Cuzco in the Ucayali River basin, and the lowest negative was in Santa Cruz de la Sierra, in the upstream Madeira River basin. The total volume of the incoming precipitation was 340,885.1 km3, with a withdrawal of −244,337.1 km3. Cross-validation was performed using 98 in situ stations with more than 20 years of recorded data, obtaining an R2 of 0.981, a slope of 1.027, and a root mean square error (RMSE) of 363.6 mm/year. The homogeneous, standardized, and continuous long-term time series provided by CHIRPS is a valuable product for basins with a low-density network of stations such as the Amazon Basin. |
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PACA, Victor Hugo da MottaESPINOZA-DÁVALOS, Gonzalo E.MOREIRA, Daniel MedeirosCOMAIR, Georges2020-05-29T20:43:30Z2020-05-29T20:43:30Z2020-04-27PACA, Victor Hugo da Motta; ESPINOZA-DÁVALOS, Gonzalo E.; MOREIRA, Daniel Medeiros; COMAIR, Georges. Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records. Water, v. 12, n. 1244, 2020.https://rigeo.cprm.gov.br/handle/doc/21671https://doi.org/10.3390/w12051244The Amazon River Basin is the largest rainforest in the world. Long-term changes in precipitation trends in the basin can affect the continental water balance and the world’s climate. The precipitation trends in the basin are not spatially uniform; estimating these trends only at locations where station data are available has an inherent bias. In the present research, the spatially distributed annual precipitation trends were studied in the Amazon River Basin from the year 1981 to 2017 using the Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) product. The precipitation trends were also cross-validated at locations where station data were available. The research also identifies clusters within the basin where trends showed a larger increase (nine clusters) or decrease in precipitation (10 clusters). The overall precipitation trend in the Amazon River Basin over 37 years showed a 2.8 mm/year increase, with a maximum of 45.1 mm/year and minimum of −37.9 mm/year. The highest positive cluster was in Cuzco in the Ucayali River basin, and the lowest negative was in Santa Cruz de la Sierra, in the upstream Madeira River basin. The total volume of the incoming precipitation was 340,885.1 km3, with a withdrawal of −244,337.1 km3. Cross-validation was performed using 98 in situ stations with more than 20 years of recorded data, obtaining an R2 of 0.981, a slope of 1.027, and a root mean square error (RMSE) of 363.6 mm/year. The homogeneous, standardized, and continuous long-term time series provided by CHIRPS is a valuable product for basins with a low-density network of stations such as the Amazon Basin.Geological Survey of Brazil (CPRM)Environmental Systems Research Institute (ESRI)Geological Survey of Brazil (CPRM)World BankMDPIAMAZON RIVER BASINPRECIPITATION PRODUCTSPRECIPITATION TRENDSRIO AMAZONASPRODUTOS DE PRECIPITAÇÃOTENDÊNCIAS DE PRECIPITAÇÃOVariability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Recordsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSwitzerlandinfo:eu-repo/semantics/openAccessengreponame:Repositório Institucional de Geociências - RIGEOinstname:Companhia de Pesquisa de Recursos Minerais (CPRM)instacron:CPRMORIGINALwater_artigo.pdfwater_artigo.pdfArtigo de Periodicoapplication/pdf6009936http://rigeo.cprm.gov.br/jspui/bitstream/doc/21671/1/water_artigo.pdfbffcd932002f4d48cd2c3605a0e4b5b6MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-82313http://rigeo.cprm.gov.br/jspui/bitstream/doc/21671/2/license.txtb38980a30cc0f8be719fed9ad8f91c15MD52doc/216712023-02-13 11:15:22.003oai:rigeo.sgb.gov.br:doc/21671TElDRU7Dh0EgRElTVFJJQlXDjURBCk5vIFJJR2VvLCBwYXJhIHJlcHJvZHV6aXIsIHRyYWR1emlyIGUgZGlzdHJpYnVpciBzdWEgc3VibWlzc8Ojbywgdm9jw6ogZGV2ZQpjb25jb3JkYXIgY29tIG9zIHRlcm1vcyBhIHNlZ3Vpci4gQ29uY2VkZXIgYSBsaWNlbsOnYSBkZSBkaXN0cmlidWnDp8OjbyBwYWRyw6NvLApzZWxlY2lvbmFuZG8gIkV1IGNvbmNlZG8gYSBMaWNlbsOnYSIgZSBjbGlxdWUgZW0gIkZpbmFsaXphciBzdWJtaXNzw6NvIi4KUmVzc2FsdGFtb3MgYWluZGEgcXVlIHRvZG9zIG9zIHRyYWJhbGhvcyBkZXBvc2l0YWRvcyBubyBSSUdlbyBlc3TDo28gZW0KY29uc29uw6JuY2lhIGNvbSBhcyBOb3JtYXMgZGUgUHJlc2VydmHDp8OjbyBkYSBNZW3Ds3JpYSBUw6ljbmljYSBJbnN0aXR1Y2lvbmFsCi0gTUNUIGRpc3BvbsOtdmVsIG5hIEludHJhbmV0LgpMSUNFTsOHQSBERSBESVNUUklCVUnDh8ODTyBOw4NPIEVYQ0xVU0lWQQpPcyBkZXBvc2l0YW50ZXMgZGV2ZW0gY29uY2VkZXIgw6AgQ1BSTSDigJMgU2VydmnDp28gR2VvbMOzZ2ljbyBkbyBCcmFzaWwgdW1hCkxpY2Vuw6dhIGRlIERpc3RyaWJ1acOnw6NvIE7Do28tRXhjbHVzaXZhIHBhcmEgbWFudGVyIGUgdG9ybmFyIGFjZXNzw612ZWlzIG9zCmRvY3VtZW50b3MgZW0gZm9ybWF0byBkaWdpdGFsIG5vIFJlcG9zaXTDs3Jpby4gQ29tIGEgY29uY2Vzc8OjbyBkZXN0YQpsaWNlbsOnYSBuw6NvIGV4Y2x1c2l2YSwgb3MgcGVzcXVpc2Fkb3JlcyBjb250aW51YW0gYSByZXRlciB0b2RvcyBvcyBkaXJlaXRvcwpkZSBhdXRvci4gQW8gYXNzaW5hciBlIHN1Ym1ldGVyIGVzdGEgbGljZW7Dp2EsIHZvY8OqOgphKSBDb25jZWRlIGEgQ1BSTSBvIGRpcmVpdG8gbsOjbyBleGNsdXNpdm8gZGUgYXJxdWl2YXIsIHJlcHJvZHV6aXIsIGNvbnZlcnRlciwKY29tdW5pY2FyIGUgL291IGRpc3RyaWJ1aXIgbm8gUmVwb3NpdMOzcmlvOwpiKSBDb25jb3JkYSBxdWUgYSBDUFJNIHBvZGUsIHNlbSBhbHRlcmFyIG8gY29udGXDumRvLCBjb252ZXJ0ZXIgYSBzdWJtaXNzw6NvCnBhcmEgcXVhbHF1ZXIgbcOtZGlhIG91IGZvcm1hdG8gcGFyYSBlZmVpdG9zIGRlIHByZXNlcnZhw6fDo287CmMpIENvbmNvcmRhIHF1ZSBhIENQUk0gcG9kZSBtYW50ZXIgbWFpcyBkZSB1bWEgY8OzcGlhIGRlc3RhIHN1Ym1pc3PDo28gcGFyYQplZmVpdG9zIGRlIHNlZ3VyYW7Dp2EgZSBwcmVzZXJ2YcOnw6NvOwpkKSBBc3NlZ3VyYSBxdWUgYSBzdWJtaXNzw6NvIMOpIHVtIHRyYWJhbGhvIG9yaWdpbmFsIHNldSwgZSBxdWUgdm9jw6ogdGVtIG8KZGlyZWl0byBwYXJhIGNvbmNlZGVyIG9zIGRpcmVpdG9zIGNvbnRpZG9zIG5lc3RhIGxpY2Vuw6dhLiBBc3NlZ3VyYSB0YW1iw6ltCnF1ZSBzdWEgc3VibWlzc8OjbyBuw6NvIGluZnJpbmdlIG9zIGRpcmVpdG9zIGF1dG9yYWlzIGRlIHF1YWxxdWVyIG91dHJhCnBlc3NvYSBvdSBlbnRpZGFkZTsKZSkgU2UgYSBzdWJtaXNzw6NvIHRpdmVyIG1hdGVyaWFsIG8gcXVhbCB2b2PDqiBuw6NvIHBvc3N1aSBvcyBkaXJlaXRvcywgdm9jw6oKYXNzZWd1cmEgcXVlIG9idGV2ZSBhIHBlcm1pc3PDo28gaXJyZXN0cml0YSBkZSBjw7NwaWEgZG8gcHJvcHJpZXTDoXJpbyBwYXJhCmdhcmFudGlyIGEgQ1BSTSBvcyBkaXJlaXRvcyByZXF1ZXJpZG9zIHBvciBlc3RhIGxpY2Vuw6dhLCBlIHF1ZSB0YWwgbWF0ZXJpYWwKZGUgcHJvcHJpZWRhZGUgZGUgdGVyY2Vpcm9zIGVzdMOhIGNsYXJhbWVudGUgaWRlbnRpZmljYWRvIGUgcXVlIG8gcmVjb25oZWNlCmRlbnRybyBkbyB0ZXh0byBvdSBkbyBjb250ZcO6ZG8gZGUgc3VibWlzc8Ojby4KZinCoFNlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIMOpIGJhc2VhZG8gZW0gdHJhYmFsaG8gZmluYW5jaWFkbyBvdSBhcG9pYWRvIHBvcgpvdXRyYSBpbnN0aXR1acOnw6NvIHF1ZSBuw6NvIGEgQ1BSTSwgZGVjbGFyYSBxdWUgY3VtcHJpdSBxdWFpc3F1ZXIgb2JyaWdhw6fDtWVzCmV4aWdpZGFzIHBlbG8gcmVzcGVjdGl2byBjb250cmF0byBvdSBhY29yZG8uCkEgQ1BSTSBpZGVudGlmaWNhcsOhIGNsYXJhbWVudGUgbyhzKSBub21lKHMpIGRvKHMpIGF1dG9yKGVzKSBkb3MgZGlyZWl0b3MgZG8KZG9jdW1lbnRvIGVudHJlZ3VlIGUgbsOjbyBmYXLDoSBxdWFscXVlciBhbHRlcmHDp8OjbywgZXhjZXRvIGNvbmZvcm1lIHBlcm1pdGlkbwpwb3IgZXN0YSBsaWNlbsOnYSwgbmEgc3VhIHN1Ym1pc3PDo28uClNlIHZvY8OqIHRpdmVyIGTDunZpZGFzIHNvYnJlIGVzdGEgbGljZW7Dp2EsIHBvciBmYXZvciBlbnRyZSBlbSBjb250YXRvIGNvbSBvcwphZG1pbmlzdHJhZG9yZXMgZG8gc2lzdGVtYS4KRepositório InstitucionalONGhttps://rigeo.sgb.gov.br/oai/request https://rigeo.cprm.gov.br/oai/requestrigeo@sgb.gov.bropendoar:2023-02-13T14:15:22Repositório Institucional de Geociências - RIGEO - Companhia de Pesquisa de Recursos Minerais (CPRM)false |
dc.title.pt_BR.fl_str_mv |
Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records |
title |
Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records |
spellingShingle |
Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records PACA, Victor Hugo da Motta RIO AMAZONAS PRODUTOS DE PRECIPITAÇÃO TENDÊNCIAS DE PRECIPITAÇÃO AMAZON RIVER BASIN PRECIPITATION PRODUCTS PRECIPITATION TRENDS |
title_short |
Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records |
title_full |
Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records |
title_fullStr |
Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records |
title_full_unstemmed |
Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records |
title_sort |
Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records |
author |
PACA, Victor Hugo da Motta |
author_facet |
PACA, Victor Hugo da Motta ESPINOZA-DÁVALOS, Gonzalo E. MOREIRA, Daniel Medeiros COMAIR, Georges |
author_role |
author |
author2 |
ESPINOZA-DÁVALOS, Gonzalo E. MOREIRA, Daniel Medeiros COMAIR, Georges |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
PACA, Victor Hugo da Motta ESPINOZA-DÁVALOS, Gonzalo E. MOREIRA, Daniel Medeiros COMAIR, Georges |
dc.subject.por.fl_str_mv |
RIO AMAZONAS PRODUTOS DE PRECIPITAÇÃO TENDÊNCIAS DE PRECIPITAÇÃO |
topic |
RIO AMAZONAS PRODUTOS DE PRECIPITAÇÃO TENDÊNCIAS DE PRECIPITAÇÃO AMAZON RIVER BASIN PRECIPITATION PRODUCTS PRECIPITATION TRENDS |
dc.subject.en.pt_BR.fl_str_mv |
AMAZON RIVER BASIN PRECIPITATION PRODUCTS PRECIPITATION TRENDS |
description |
The Amazon River Basin is the largest rainforest in the world. Long-term changes in precipitation trends in the basin can affect the continental water balance and the world’s climate. The precipitation trends in the basin are not spatially uniform; estimating these trends only at locations where station data are available has an inherent bias. In the present research, the spatially distributed annual precipitation trends were studied in the Amazon River Basin from the year 1981 to 2017 using the Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) product. The precipitation trends were also cross-validated at locations where station data were available. The research also identifies clusters within the basin where trends showed a larger increase (nine clusters) or decrease in precipitation (10 clusters). The overall precipitation trend in the Amazon River Basin over 37 years showed a 2.8 mm/year increase, with a maximum of 45.1 mm/year and minimum of −37.9 mm/year. The highest positive cluster was in Cuzco in the Ucayali River basin, and the lowest negative was in Santa Cruz de la Sierra, in the upstream Madeira River basin. The total volume of the incoming precipitation was 340,885.1 km3, with a withdrawal of −244,337.1 km3. Cross-validation was performed using 98 in situ stations with more than 20 years of recorded data, obtaining an R2 of 0.981, a slope of 1.027, and a root mean square error (RMSE) of 363.6 mm/year. The homogeneous, standardized, and continuous long-term time series provided by CHIRPS is a valuable product for basins with a low-density network of stations such as the Amazon Basin. |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-05-29T20:43:30Z |
dc.date.available.fl_str_mv |
2020-05-29T20:43:30Z |
dc.date.issued.fl_str_mv |
2020-04-27 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PACA, Victor Hugo da Motta; ESPINOZA-DÁVALOS, Gonzalo E.; MOREIRA, Daniel Medeiros; COMAIR, Georges. Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records. Water, v. 12, n. 1244, 2020. |
dc.identifier.uri.fl_str_mv |
https://rigeo.cprm.gov.br/handle/doc/21671 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.3390/w12051244 |
identifier_str_mv |
PACA, Victor Hugo da Motta; ESPINOZA-DÁVALOS, Gonzalo E.; MOREIRA, Daniel Medeiros; COMAIR, Georges. Variability of Trends in Precipitation across the Amazon River Basin Determined from the CHIRPS Precipitation Product and from Station Records. Water, v. 12, n. 1244, 2020. |
url |
https://rigeo.cprm.gov.br/handle/doc/21671 https://doi.org/10.3390/w12051244 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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MDPI |
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MDPI |
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reponame:Repositório Institucional de Geociências - RIGEO instname:Companhia de Pesquisa de Recursos Minerais (CPRM) instacron:CPRM |
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