Title
APPLICATION OF THE STANDARDIZED VEGETATION INDEX (SVI) AND GOOGLE EARTH ENGINE (GEE) FOR DROUGHT MANAGEMENT IN PERU †
Other title
APLICACIÓN DEL ÍNDICE DE VEGETACIÓN ESTANDARIZADO (SVI) Y GOOGLE EARTH ENGINE (GEE) PARA LA GESTIÓN DE SEQUÍAS EN PERÚ.
Date Issued
01 January 2022
Access level
metadata only access
Resource Type
journal article
Author(s)
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Publisher(s)
Universidad Autonoma de Yucatan
Abstract
Background. The SVI (Standardized Vegetation Index) provides a relative comparison of the condition of the vegetation in different classifications for monitoring droughts. Objective. In this research, the SVI was used through the Google Earth Engine (GEE) at the national level and in three study points for a coastal, Amazonian, and Andean region for October 31, 2020, and two decades. Methodology. For the construction of the SVI, the data from the Moderate Resolution Imaging Spectroradiometer (MODIS) Version 6 were used; of the Terra sensor (MOD13Q1) with a temporal resolution of 16 days, a spatial resolution of 250 meters, and as a level 3 product. Results. The SVI was represented in five classifications: with green color ≥ 0 (No Drought), yellow color -0.10 to -0.94 (Slight drought), light orange color -0.95 to -1.44 (Moderate drought), dark orange color -1.45 to -1.94 (Severe drought), and red color ≤ -1.95 (Extreme drought). Implications. The change in historical SVI values was evidenced due to causes such as El Niño costero (coastal) and deforestation of Tropical Forests; for the Sechura Desert in Piura and La Pampa in Madre de Dios, respectively. Subsequently, in the Andes of Peru, in Ollachea, Puno, it was determined that the SVI value, more extreme negative, represented an extreme drought never registered for this area. Conclusion. The SVI and GEE provided tools for drought management with high spatial and temporal resolution.
Volume
25
Issue
1
Language
English
OCDE Knowledge area
Forestal
Scopus EID
2-s2.0-85126547828
Source
Tropical and Subtropical Agroecosystems
ISSN of the container
18700462
Sponsor(s)
Funding. This project was financed by the Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES) de la Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas (Perú) mediante el Proyecto del Sistema Nacional de Inversión Pública (SNIP) N° 352431 “Creación de los Servicios del Centro de Investigación en Climatología y Energías Alternativas” (PROCICEA) y la Universidad Estatal de Montana (Estados Unidos).
Sources of information: Directorio de Producción Científica Scopus