Modeling Water Resource Systems under Climate Change: IGSM-WRS
Name
MITJPSPGC_Rpt236.pdf
Description
Main article
Size
3.18 MB
Format
Adobe PDF
Checksum (MD5)
bfd844244500f37ac30344ab781970c1
Author(s)
Strzepek, K.
Schlosser, C.A.
Gueneau, A.
Gao, X.
Blanc, É.
Fant, C.
Rasheed, B.
Jacoby, H.D.
Date Issued
December 2012
Publisher
MIT Joint Program on the Science and Policy of Global Change
Citation
Report 236
Series/Report no.
Joint Program Report Series;236
Abstract
Through the integration of a Water Resource System (WRS) component, the MIT Integrated Global System Model (IGSM) framework has been enhanced to study the effects of climate change on managed water-resource systems. Development of the WRS involves the downscaling of temperature and precipitation from the zonal representation of the IGSM to regional (latitude-longitude) scale, and the translation of the resulting surface hydrology to runoff at the scale of river basins, referred to as Assessment Sub-Regions (ASRs). The model of water supply is combined with analysis of water use in agricultural and non-agricultural sectors and with a model of water system management that allocates water among uses and over time and routes water among ASRs. Results of the IGSM-WRS framework include measures of water adequacy and ways it is influenced by climate change. Here we document the design of WRS and its linkage to other components of the IGSM, and present tests of consistency of model simulations with the historical record.
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