Logo Lanfrica
  • Accueil
  • Atlas
  • Analyses
  • Documentation
  • Sign in

© 2026 Lanfrica. Tous droits réservés. Tous les droits d'auteur des ressources affichées sur le site Web Lanfrica appartiennent aux détenteurs de droits d'auteur d'origine, sauf indication contraire explicite.

MATLAB code and processed drought-index datasets for drought propagation analysis over South Asia (1975–2024)

Domaine:

climate

Type de record:

datasetsoftware
Créateur:
KanKwoRah
Éditeur:
Zenodo
Hôte:avatar

This dataset and scripts accompanies the manuscript "Tracking Drought Propagation in a Changing Climate: A Nonstationary Copula-Wavelet Framework". It contains monthly gridded drought indices derived from harmonized GLDAS Noah monthly 0.25° product over South Asia during 1975-2024.

SouthAsia_DI.mat contains harmonized GLDAS-derived Standardized Precipitation Index (SPI), Standardized Soil Moisture Index (SMI), and Standardized Runoff Index (SRI) datasets at accumulation timescales of 1–6 months, together with the geographic coordinates and land mask used in the analysis. NS_Result_C8.mat contains the eight-cluster spatial assignment and associated PCA and k-means clustering outputs.

The MATLAB workflow consists of four principal scripts: stationary drought-propagation analysis (RUN1_DP_S.m), PCA and k-means clustering (RUN2_PCA_CLUSTER.m), non-stationary drought-propagation analysis (RUN3_DP_NS.m), and wavelet-based propagation-time analysis (RUN4_WAVELET.m). The helper function select_best_copula_builtin.m is used for copula-family selection in the stationary analysis. Detailed file descriptions, software requirements, execution order, and expected outputs are provided in README.md.

Visit

doi.org

Languages

Ndasa

Licenses

info:eu-repo/semantics/openAccessCreative Commons Attribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/legalcode

Similaires

Meteorological Drought Variability over Africa from Multisource DatasetsMonitoring Drought with the Combined Drought Index in KenyaSpatial-temporal Assessment of historical and projected drought events over Isiolo County, Kenya using Self Calibrating Palmer Drought Severity IndexSpatiotemporal drought assessment using vegetation health index and standardized precipitation index over Sudano-Sahelian region of NigeriaPython Code for SPI-Based Drought Analysis in Borena and Guji Zones, EthiopiaAbdullahicoder/somalia-drought-vulnerability-index

Meteorological Drought Variability over Africa from Multisource Datasets

This study analyses the spatiotemporal variability of meteorological drought over Africa and its nin

Monitoring Drought with the Combined Drought Index in Kenya

Spatial-temporal Assessment of historical and projected drought events over Isiolo County, Kenya using Self Calibrating Palmer Drought Severity Index

Abstract This study was to determine the spatiotemporal characteristics of historical and

Spatiotemporal drought assessment using vegetation health index and standardized precipitation index over Sudano-Sahelian region of Nigeria

Python Code for SPI-Based Drought Analysis in Borena and Guji Zones, Ethiopia

This repository contains Python code used for the computation and analysis of the Standardi

Abdullahicoder/somalia-drought-vulnerability-index

Modeling drought vulnerability in Somalia using FAO-SWIMS and IOM data to support early warning, tar