...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of hydrometeorology >Estimation of Precipitation over the OLYMPEX Domain during Winter 2015/16
【24h】

Estimation of Precipitation over the OLYMPEX Domain during Winter 2015/16

机译：2015/16年冬季奥林巴克域降水估算

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To provide ground validation data for satellite precipitation products derived from the Global Precipitation Measurement (GPM) mission, such as IMERG, in cold seasons and where orographic factors exert strong controls on precipitation, the Olympic Mountain Experiment (OLYMPEX) was conducted during winter 2015/16. By utilizing multiple observational resources from OLYMPEX, estimates of daily and finer-scale precipitation are constructed at 1/328 spatial resolution over the OLYMPEX domain. The estimates are based on NOAA WSR-88D and gauge estimates as incorporated in NOAA's National Severe Storms Laboratory (NSSL) Q3GC product, augmented with an additional 120 gauges available during OLYMPEX. Few stations are located in the interior of the Olympic Peninsula at elevations higher than about 500 m, and in this part of the domain the Variable Infiltration Capacity (VIC) hydrology model is used to invert the snow water equivalent (SWE) estimates, derived from two NASA JPL Airborne Snow Observatory (ASO) snow depth maps on 8-9 February 2016 and 29-30 March 2016, for precipitation through adjustment of the precipitation-weighting factor on a grid cell by grid cell basis. In comparison with this composite product, both IMERG (version 04A) and its Japanese counterpart GSMaP's (version 04B) satellite-only products tend to underestimate winter precipitation, by 41% and 28%, respectively, over the entire domain from 1 October 2015 to 30 April 2016. The underestimation is more pronounced for the orographically enhanced mountainous interior of the OLYMPEX domain, by 57% and 48%, respectively. In contrast, IMERG and GSMaP storm interarrival time statistics are quite similar to those estimated from gridded observations.
机译：为卫星降水产品提供从全球降水测量（GPM）任务的地面验证数据，如IMERD，在冷季节和地理因素对降水量发挥强有力的控制时，奥林匹克山实验（OLYMPEX）于2015年冬季进行/ 16。通过利用来自OLYMPEX的多个观测资源，在OLYMPEX域的1/328空间分辨率下构建日常和更精细的降水的估计。估计值基于NOAA WSR-88D和仪表估计，该估计在NOAA的国家严重风暴实验室（NSSL）Q3GC产品中纳入，在奥林巴克期间使用额外的120张仪表增强。少数站位于高于约500米的奥林匹克半岛的内部，并且在该域的这一部分中，可变渗透能力（VIC）水文模型用于反转衍生的雪水等同（SWE）估计2016年2月8日至9日，2016年2月8日和2016年3月29日至30日，通过网格细胞对曲线细胞上的沉淀加权因子调节沉淀加权因子来降水。与该复合产品相比，IMERG（版本04A）及其日本同行GSMAP（版本04B）卫星产品往往低估了冬季降水量，分别从2015年10月1日期间分别低于整个领域的41％和28％ 2016年4月30日。低估了奥林巴克域的野生山区内部，分别为57％和48％更为明显。相比之下，IMERG和GSMAP Storm Tommarrive时间统计与来自网格观测的估计的人非常相似。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号