Data and code repositories
We are delighted to share our data for all published (and frequently unpublished) work with anyone, and we do so via the research data repository (figshare) as well as email. We also make our code available to everyone on the Github platform.
The high-resolution (1km) groundwater storage and depletion maps across Irrigated Indus Basin (IIB) during 2002-2019
We provided high-resolution (1km) groundwater storage (GWS) and depletion (DEPgw) maps across Irrigated Indus Basin (IIB) for 2002-2019. We applied two independent methodologies (1) spatial downscaling for improving GRACE-based GWS data, and (2) SWAT (Soil Water Assessment Tool) and pixel-based water balance approach for DEPgw estimates. GWS were estimated from the GRACE data, then downscaled to 1 km × 1 km using data-driven spatial downscaling models. We combined the downscaled GRACE-based GWS estimates with results from a calibrated SWAT hydrological model to estimate the DEPgw. The resultant maps delineate the groundwater depletion hotspots of cropping systems in the 55 canal command areas of IIB and could contribute to sustainable water use and agricultural development in the region.
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Data is publically available at https://doi.org/10.6084/m9.figshare.22301020.v4
Data format: .tif formal (WGS1984),
Coverage: 2002-2019 (Annual)
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Citation:
Arfan, Arshad; Mirchi, Ali (2023): The high-resolution (1km) groundwater storage and depletion maps across Irrigated Indus Basin (IIB) during 2002-2019. figshare. Dataset. https://doi.org/10.6084/m9.figshare.22301020.v4
Readers can refer to the following publication for more details on the methods.
Arshad, A., Mirchi, A., Samimi, M. and Ahmad, B., 2022. Combining downscaled-GRACE data with SWAT to improve the estimation of groundwater storage and depletion variations in the Irrigated Indus Basin (IIB). Science of the Total Environment, 838, p.156044.
FUNDING
National Science Foundation (NSF Award 2114701) of the United States
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TRMM at 1km-Resolution: High-resolution precipitation data in a data-scarce Indus Basin reconstructed through data-driven spatial downscaling and remote sensing
We provided high-resolution (1km) gridded precipitation data across the entire Indus Basin for 2002-2019. We investigated the performance of a data-driven spatial downscaling procedure to generate fine-scale (1 km × 1 km) gridded precipitation estimates from the coarser resolution of TRMM data (~25 km) in the Indus Basin. The mixed geo-graphically weighted regression (MGWR) and random forest (RF) models were utilized to spatially downscale the TRMM precipitation data using high-resolution (1 km × 1 km) explanatory variables. The high-resolution gridded precipitation data generated by the proposed framework can facilitate the characterization of distributed hydrology in the Indus Basin.
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Data is publically available at https://doi.org/10.6084/m9.figshare.24570397.v3
Data format: .tif formal (WGS1984),
Coverage: 2002-2019 (Annual)
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Citation:
Arfan Arshad; Zhang, Wanchang; Noor, Rabeea (2023). TRMM at 1km-Resolution: High-resolution precipitation data in a data-scarce Indus Basin reconstructed through data-driven spatial downscaling and remote sensing. figshare. Dataset. https://doi.org/10.6084/m9.figshare.24570397.v3
Readers can refer to the following publication for more details on the methods.
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[1] Arshad, A., Zhang, W., Zhang, Z., Wang, S., Zhang, B., Cheema, M.J.M. and Shalamzari, M.J., 2021. Reconstructing high-resolution gridded precipitation data using an improved downscaling approach over the high altitude mountain regions of Upper Indus Basin (UIB). Science of The Total Environment, 784, p.147140.
[2] Noor R, Arshad A, Shafeeque M, Liu J, Baig A, Ali S, Maqsood A, Pham QB, Dilawar A, Khan SN, Anh DT. Combining APHRODITE Rain Gauges-Based Precipitation with Downscaled-TRMM Data to Translate High-Resolution Precipitation Estimates in the Indus Basin. Remote Sensing. 2023 Jan 5;15(2):318.
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FUNDING
This study was jointly financed by the National Key R & D Program of China [Grant No. 2016YFA0602302] and the Key R & D and Transformation Program of Qinghai Province [Grant No. 2020-SF-C37]. Acknowledgment: The authors are grateful to the Water and Power Development Authority (WAPDA), Pakistan Meteorological Department (PMD), and China Metrological Department (CMD) for providing observed hydro-metrological data in the upper Indus basin.
Contact: aarshad@okstate.edu; arfanarshad52@gmail.com
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