Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5539 |
Adjustment of measurement errors to reconcile precipitation distribution in the high-altitude Indus basin | |
Dahri, Zakir Hussain1,2; Moors, Eddy3,4; Ludwig, Fulco1; Ahmad, Shakil5; Khan, Asif6; Ali, Irfan7; Kabat, Pavel1,8 | |
2018-08-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38期号:10页码:3842-3860 |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands; Pakistan; Austria |
英文摘要 | Precipitation in the high-altitude Indus basin governs its renewable water resources affecting water, energy and food securities. However, reliable estimates of precipitation climatology and associated hydrological implications are seriously constrained by the quality of observed data. As such, quantitative and spatio-temporal distributions of precipitation estimated by previous studies in the study area are highly contrasting and uncertain. Generally, scarcity and biased distribution of observed data at the higher altitudes and measurement errors in precipitation observations are the primary causes of such uncertainties. In this study, we integrated precipitation data of 307 observatories with the net snow accumulations estimated through mass balance studies at 21 major glacier zones. Precipitation observations are adjusted for measurement errors using the guidelines and standard methods developed under the WMO's international precipitation measurement intercomparisons, while net snow accumulations are adjusted for ablation losses using standard ablation gradients. The results showed more significant increases in precipitation of individual stations located at higher altitudes during winter months, which are consistent with previous studies. Spatial interpolation of unadjusted precipitation observations and net snow accumulations at monthly scale indicated significant improvements in the quantitative and spatio-temporal distribution of precipitation over the unadjusted case and previous studies. Adjustment of river flows revealed only a marginal contribution of net glacier mass balance to river flows. The adjusted precipitation estimates are more consistent with the corresponding adjusted river flows. The study recognized that the higher river flows than the corresponding precipitation estimates by the previous studies are mainly due to underestimated precipitation. The results can be useful for water balance studies and bias correction of gridded precipitation products for the study area. |
英文关键词 | bias correction of precipitation high-altitude Indus basin net mass balance contribution to river run-off net snow accumulation adjustments precipitation distribution precipitation measurement errors |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440826000007 |
WOS关键词 | KARAKORAM-HIMALAYA ; CLIMATE-CHANGE ; SPATIAL-DISTRIBUTION ; WATER-RESOURCES ; GLACIER MELT ; MASS-BALANCE ; RIVER-BASIN ; SNOW COVER ; RUNOFF ; VARIABILITY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37147 |
专题 | 气候变化 |
作者单位 | 1.Wageningen Univ & Res, Water Syst & Global Change, Wageningen, Netherlands; 2.Pakistan Agr Res Council, Climate Energy & Water Resources Inst, Natl Agr Res Ctr, Islamabad, Pakistan; 3.IHE Delft Inst Water Educ, Delft, Netherlands; 4.Vrije Univ Amsterdam, Earth & Climate Cluster, Fac Earth & Life Sci, Amsterdam, Netherlands; 5.Natl Univ Sci & Technol, NUST Inst Civil Engn, Islamabad, Pakistan; 6.Univ Engn & Technol, Dept Civil Engn, Peshawar, Pakistan; 7.Pakistan Agr Res Council, Nat Resources Div, Islamabad, Pakistan; 8.Int Inst Appl Syst Anal, Laxenburg, Austria |
推荐引用方式 GB/T 7714 | Dahri, Zakir Hussain,Moors, Eddy,Ludwig, Fulco,et al. Adjustment of measurement errors to reconcile precipitation distribution in the high-altitude Indus basin[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(10):3842-3860. |
APA | Dahri, Zakir Hussain.,Moors, Eddy.,Ludwig, Fulco.,Ahmad, Shakil.,Khan, Asif.,...&Kabat, Pavel.(2018).Adjustment of measurement errors to reconcile precipitation distribution in the high-altitude Indus basin.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(10),3842-3860. |
MLA | Dahri, Zakir Hussain,et al."Adjustment of measurement errors to reconcile precipitation distribution in the high-altitude Indus basin".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.10(2018):3842-3860. |
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