Compound Drought and Heatwave (CDHW) Events – Senegal, 1981-2023
Creators
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1.
University of Twente
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2.
University of Plymouth
Description
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Science Case Name |
Multi-Hazards in Senegal. |
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Dataset Name/Title |
Compound Drought and Heatwave (CDHW) Events – Senegal, 1981-2023 |
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Dataset Description |
The dataset contains gridded data on co-ocurrence of droughts and heatwaves (CDHW) over the whole area of Senegal. |
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Key Methodologies |
Droughts were defined as events with Z-scores of the 6-month Standardized Precipitation Index (SPI-6) below or equal to -1. SPI-6 was computed from Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) mothly precipitation data. Heatwaves were defined as at least 3-day-long events on which daily maximum air temperature exceeded the above the 90$^{th}$ percentile of the 31-day moving average daily maximum air temperature. Two heatwave events separated by only one day were merged into a single event. Daily maximum air temperature at 2 meters was downloaded from ERA5-Land dataset. CDHW is a spatial and temporal intersection of droughts and heatwaves. The uploaded dataset has values 1 in cell with CDHW and 0 othwerwise. |
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Temporal Domain |
1981–2023, daily |
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Spatial Domain |
Senegal, West Africa Spatial resolution ca 0.1°x0.1° (EPGS:4326) |
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Key Variables/Indicators |
Spatio-temporal clusters of dry/drought events |
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Data Format |
netCDF |
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Source Data |
ERA5-Land and CHIRPS |
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Accessibility |
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Stakeholder Relevance |
Identifying and assessing past compound hot and dry events for multi-hazard events monitoring, prediction and preparedness. |
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Limitations/Assumptions |
The assumption is that 43 years of data are sufficient for the SPI computation. |
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Additional Outputs/information |
The dataset access is currently restricted due to pending related publication. |
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Contact Information |
Egor Prikaziuk (UT-ITC, Faculty of Geo-Information Science and Earth Observation, ITC, University of Twente, the Netherlands) |
Files
Restricted
The record is publicly accessible, but files are restricted to users with access.
Additional details
Funding
- European Space Research Institute
- EO4Multihazards (Earth Observation for High-Impact Multi-Hazards Science), funded by the European Space Agency and launched as part of the joint ESA-European Commission Earth System Science Initiative