| 来源类型 | Conference or Workshop Item (Paper)
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| 规范类型 | 其他
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| Using the Budyko framework for calibrating a global hydrological model in ungauged catchments of the world. |
| Burek P; Greve P; Satoh Y; Wada Y
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| 发表日期 | 2018
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| 出处 | European Geosciences Union General Assembly 2018, 9-13 April 2018, Vienna, Austria
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| 出版年 | 2018
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| 语种 | 英语
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| 摘要 | In the last three decades, Global hydrological models (GHMs) have become an established tool to simulate water resources worldwide, however, most of the GHMs are uncalibrated. One of the main reasons which makes calibration necessary is large uncertainty in input data, parameters, model assumptions and grid cell heterogeneity especially at low resolution of 0.5 deg. or even 5’. Running GHMs uncalibrated may lead to unrealistic projections of terrestrial water cycle in some regions, where input data (such as e.g., climate forcing) are not well constrained. Calibration of hydrological models is usually performed by using and comparing to observed discharge. However, for some parts of the world it is challenging to get accurate station data and reliable time series of discharge. Also the global accessibility of these data is decreasing since the 1990s. Instead of calibrating for a few stations with existing data in Africa and Asia and trying to regionalize the results, here we attempt to use the Budyko framework for calibration with the IIASA in-house global hydrological model, the Community Water Model (CWatM). This should be seen as an intermediate approach between “traditional” calibration with discharge data and no calibration at all. This method is independent of measured discharge data and a way to achieve more realistic water projections for the future in ungauged catchments. |
| 主题 | Water (WAT)
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| URL | http://pure.iiasa.ac.at/id/eprint/15200/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/132803
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推荐引用方式
GB/T 7714 |
Burek P,Greve P,Satoh Y,et al. Using the Budyko framework for calibrating a global hydrological model in ungauged catchments of the world.. 2018.
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文件名：
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CWATM_budyko.pdf
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格式：
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Adobe PDF
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