Analysis of historical climate datasets for hydrological modelling across South Asia

[摘要] This report summarises the results of comparative analysis on gridded historical rainfall and temperature datasets for hydrological modelling in south Asia. These datasets have been used for consistent modelling across south Asia to characterise the hydroclimate of the region and to model future climate and hydrologyimpacted by climate change and other drivers. The results have been used to supplement local datasets in the modelling of the Indus, Koshi and Brahmani‐Baitarni River basins (Figure 1, conducted as part of CSIRO’s contribution to the Sustainable Development Investment Portfolio (SDIP) of the Australian Government.The purpose of undertaking this work was not to recommend the use of one dataset over another as that is dependent on need and circumstance. Rather it has been to evaluate their usability across a range of scales - region, basin, and sub‐catchment. Our intent was to understand the datasets - their assumptions, limitations and constraints - through comparison. Some results were compared to observed data, but these results are not reported here.This report follows on from the Chen et al (2015) technical report which describes the processing of these datasets.

[发布机构] CSIRO

[学科分类] 地球科学(综合)