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Quantifying Uncertainty in the Impacts of Climate Change on River Discharge in Sub-catchments of the Yangtze and Yellow River Basins, China : Volume 15, Issue 1 (26/01/2011)

By Xu, H.

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Book Id: WPLBN0003991062
Format Type: PDF Article :
File Size: Pages 12
Reproduction Date: 2015

Title: Quantifying Uncertainty in the Impacts of Climate Change on River Discharge in Sub-catchments of the Yangtze and Yellow River Basins, China : Volume 15, Issue 1 (26/01/2011)  
Author: Xu, H.
Volume: Vol. 15, Issue 1
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Taylor, R. G., Xu, Y., & Xu, H. (2011). Quantifying Uncertainty in the Impacts of Climate Change on River Discharge in Sub-catchments of the Yangtze and Yellow River Basins, China : Volume 15, Issue 1 (26/01/2011). Retrieved from http://hawaiilibrary.net/


Description
Description: National Climate Center, Laboratory for Climate Studies of China Meteorological Administration, Beijing, 100081, China. Quantitative evaluations of the impacts of climate change on water resources are primarily constrained by uncertainty in climate projections from GCMs. In this study we assess uncertainty in the impacts of climate change on river discharge in two catchments of the Yangtze and Yellow River Basins that feature contrasting climate regimes (humid and semi-arid). Specifically we quantify uncertainty associated with GCM structure from a subset of CMIP3 AR4 GCMs (HadCM3, HadGEM1, CCSM3.0, IPSL, ECHAM5, CSIRO, CGCM3.1), SRES emissions scenarios (A1B, A2, B1, B2) and prescribed increases in global mean air temperature (1 °C to 6 °C). Climate projections, applied to semi-distributed hydrological models (SWAT 2005) in both catchments, indicate trends toward warmer and wetter conditions. For prescribed warming scenarios of 1 °C to 6 °C, linear increases in mean annual river discharge, relative to baseline (1961–1990), for the River Xiangxi and River Huangfuchuan are +9% and 11% per +1 °C respectively. Intra-annual changes include increases in flood (Q05) discharges for both rivers as well as a shift in the timing of flood discharges from summer to autumn and a rise (24 to 93%) in dry season (Q95) discharge for the River Xiangxi. Differences in projections of mean annual river discharge between SRES emission scenarios using HadCM3 are comparatively minor for the River Xiangxi (13 to 17% rise from baseline) but substantial (73 to 121%) for the River Huangfuchuan. With one minor exception of a slight (−2%) decrease in river discharge projected using HadGEM1 for the River Xiangxi, mean annual river discharge is projected to increase in both catchments under both the SRES A1B emission scenario and 2° rise in global mean air temperature using all AR4 GCMs on the CMIP3 subset. For the River Xiangxi, there is substantial uncertainty associated with GCM structure in the magnitude of the rise in flood (Q05) discharges (−1 to 41% under SRES A1B and −3 to 41% under 2° global warming) and dry season (Q95) discharges (2 to 55% under SRES A1B and 2 to 39% under 2° global warming). For the River Huangfuchuan, all GCMs project a rise in the Q05 flow but there is substantial uncertainty in the magnitude of this rise (7 to 70% under SRES A1B and 2 to 57% under 2° global warming). Differences in the projected hydrological changes are associated with GCM structure in both catchments exceed uncertainty in emission scenarios. Critically, estimated uncertainty in projections of mean annual flows is less than that calculated for extreme (Q05, Q95) flows. The common approach of reporting of climate change impacts on river in terms of mean annual flows masks the magnitude of uncertainty in flows that are of most importance to water management.

Summary
Quantifying uncertainty in the impacts of climate change on river discharge in sub-catchments of the Yangtze and Yellow River Basins, China

Excerpt
Arnell, N. W.: Effects of IPCC SRES$^{*}$ emissions scenarios on river runoff: a global perspective, Hydrol. Earth Syst. Sci., 7, 619–641, doi:10.5194/hess-7-619-2003, 2003.; Arnell, N. W.: The relationship between climate forcing and hydrological response in UK catchments, Hydrol. Earth Syst. Sci. Discuss., 7, 7633–7667, doi:10.5194/hessd-7-7633-2010, 2010.; Bates, B. C., Kundzewicz, Z. W., Wu, S., and Palutikof, J. P.: Climate Change and Water, Technical Paper of the Intergovernmental Panel for Climate Change, IPCC Secretariat, Geneva, Switzerland, 2008.; Cheng, H., Ouyang, W., Hao, F., Ren, X., and Yang, S.: The nonpoint-source pollution in livestock-breeding areas of the Heihe River basin in Yellow River. Stoch. Environ. Res. Risk Assess., 21, 213–221, doi:10.1007/s00477-006-0057-2, 2007.; Fu, G. B., Chen, S. L., Liu, C. M., and Shepard, D.: Hydro-climatic trends of the Yellow River Basin for the last 50 years, Climatic Change, 65, 149–178, 2004.; Gassman, P. W., Reyes, M. R., Green, C. H., and Arnold, J. G.: The soil and water assessment tool: Historical development, applications and future research directions, T. ASABE, 50, 1211–1250, 2007.; Hargreaves, G. L., Hargreaves, G. H., and Riley, J. P.: Agricultural benefits for Senegal River basin, J. Irrig. Drain. E.-ASCE, 108(3), 225–230, 1985.; Guo, H., Hu, Q., and Jiang, T.: Annual and seasonal streamflow responses to climate and land-cover changes in the Poyang Lake basin, China, J. Hydrol., 355, 106–122, 2008.; Hagg, W., Braun, L. N., Kuhn, M., and Nesgaard, T. I.: Modelling of hydrological response to climate change in glacierized central Asian catchments, J. Hydrol., 332, 40–53, 2007.; Liu, Q., Yang, Z., and Cui, B.: Spatial and temporal variability of annual precipitation during 1961–2006 in Yellow River Basin, China, J. Hydrol., 361, 330–338, 2008.; Hao, F. H., Zhang, X. S., and Yang, Z. F.: A distributed nonpoint-source pollution model: Calibration and validation in the Yellow River basin, J. Environ. Sci., 16(4), 646–650, 2004.; Huang, Y., Cai, J., Yin, H., and Cai, M.: Correlation of precipitation to temperature variation in the Huanghe River (Yellow River) basin during 1957–2006, J. Hydrol., 372, 1–8, 2009.; Hughes, D. A., Kingston, D. G., and Todd, M. C.: Uncertainty in water resources availability in the Okavango River Basin as a result of climate change, Hydrol. Earth Syst. Sci. Discuss., 7, 5737–5768, doi:10.5194/hessd-7-5737-2010, 2010.; Jiang, T., Su, B., and Hartmann, H.: Temporal and spatial trends of precipitation and river flow in the Yangtze River basin, 1961–2000, Geomorphology, 85, 143–154, 2007.; Juen, I., Kaser, G., and Georges, C.: Modelling observed and future runoff from a glacierized tropical catchment (Cordillera Balanca, Peru), Global. Planet. Change, 59, 37–48, 2007.; Kingston, D. G. and Taylor, R. G.: Sources of uncertainty in climate change impacts on river discharge and groundwater in a headwater catchment of the Upper Nile Basin, Uganda, Hydrol. Earth Syst. Sci., 14, 1297–1308, doi:10.5194/hess-14-1297-2010, 2010.; Kingston, D. G., Thompson, J. R., and Kite, G.: Uncertainty in climate change projections of discharge for the Mekong River Basin, Hydrol. Earth Syst. Sci. Discuss., 7, 5991-6024, doi:10.5194/hessd-7-5991-2010, 2010.; Li, F., Cai, Q., Fu, X., and Liu, J.: Construction of habitat suitability odels (HSMs) for benthic macroinvertebrate and their applications to instream environmental flows: A case study in Xiangxi River of Three Gorges Reservoir region, China, Prog. Nat. Sci., 19, 359–367, 2009.; Matondo, J. I., Peter, G., and Msibi, K. M.: Evaluation of the impact of climate change on hydrology and water resources in Swaziland: Part II, Phys. Chem. Earth., 29, 1193–1202, 2004.; Menzel, L. and Bürger, G.: Climate change scenarios and runoff response in the mulde catchment (Southern Elbe, Germany), J. Hydrol., 267, 53–64, 2002.; Minville, M., Brissette, F., and Lecontem, R.: Uncertainty of the

 

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