A comprehensive assessment of remote sensing and traditional based drought monitoring indices at global and regional scale

This study reports a comprehensive review on drought indices used in monitoring meteorological, agricultural, hydrological, and socio-economic drought. Drought indices have been introduced as an important approach to quantitative and qualitative calculations of drought's severity and impact. Th...

Full description

Saved in:
Bibliographic Details
Published in:Geomatics, natural hazards and risk natural hazards and risk, 2022-12, Vol.13 (1), p.762-799
Main Authors: Alahacoon, Niranga, Edirisinghe, Mahesh
Format: Article
Language:English
Subjects:
Agricultural drought
Drought
drought forecasting
Drought index
Drought indices
Drought monitoring
Environmental monitoring
Hydrologic drought
Hydrology
Monitoring
Remote sensing
Satellite observation
Satellite technology
Satellites
Socioeconomic aspects
Spatial distribution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study reports a comprehensive review on drought indices used in monitoring meteorological, agricultural, hydrological, and socio-economic drought. Drought indices have been introduced as an important approach to quantitative and qualitative calculations of drought's severity and impact. There were 111 drought indices reviewed in this study, which fall into two categories: traditional (location-specific/model) and remote sensing (RS). Out of 111 indices, 44 belong to the traditional indices and 67 belong to the RS section. This study shows that meteorological drought monitoring has the highest number (22) of traditional indices, about 20% overall, while the lowest (7) agricultural drought monitoring is 6.3%. The specialty is that when considering remote sensing-based drought indices, 90% are used for agricultural drought monitoring and 10% for hydrological and meteorological drought monitoring. However, the study found that advances in satellite technology have accelerated the design of new drought indices and that replacing traditional location-specific data with satellite observation makes it easier to calculate more spatial distribution and resolution.
ISSN:1947-5705
1947-5713
DOI:10.1080/19475705.2022.2044394