Abstract
Drought directly impacts the living organisms and environment, and thereby, its assessment is essential. Different drought indices require different data, which can be obtained based on models or in-situ measurements, demanding a significant amount of effort. Using remotely sensed (RS) data from satellites can facilitate this data acquisition. Nowadays, more and more satellite techniques are rising, highlighting the need to assess the accuracy of their data and the reliability of the results obtained by employing them. The Wet-environment Evapotranspiration Precipitation Standardized Index (WEPSI) has shown good performance in drought monitoring and assessment, especially for agricultural purposes. This chapter employs the Global Land Evaporation Amsterdam Model (GLEAM) data to investigate its applicability in the Lempa River basin drought assessment using WEPSI. In this order, evaluated data obtained from the Water Evaluation and Planning system (WEAP) were used as the basis for comparison. Precisely, a comparison was made with GLEAM and WEAP-based data as well as WEPSI time series based on these two datasets. The results show a relatively high similarity between these two datasets and calculated WEPSI drought indices. This validates the good performance of GLEAM-based data in drought monitoring and assessment based on WEPSI.
Original language | English |
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Title of host publication | Application of Remote Sensing and GIS in Natural Resources and Built Infrastructure Management |
Subtitle of host publication | Water Science and Technology Library |
Editors | Vijay P. Singh, Shalini Yadav, Krishna Kumar Yadav, Gerald Augusto Corzo Perez, Francisco Muñoz-Arriola, Ram Narayan Yadava |
Chapter | 10 |
Pages | 197-215 |
Number of pages | 19 |
Volume | 105 |
ISBN (Electronic) | 978-3-031-14096-9 |
DOIs | |
Publication status | Published - 2023 |
Publication series
Name | Water Science and Technology Library |
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Publisher | Springer |
ISSN (Print) | 0921-092X |
ISSN (Electronic) | 1872-4663 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Keywords
- Remote sensing
- GLEAM
- Drought index
- WEPSI
- Drought assessment
- Drought monitoring
- Drought analysis
- Agricultural drought
- WEAP
- Lempa River basin