GLOBAL MONITORING AND VALIDATION OF THE CRYOSAT-2 SIGNIFICANT WAVE HEIGHT PRODUCT

机译：CRYOSAT-2重大波高产品的全球监测和验证

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The altimeter significant wave height (SWH) and thernsurface wind speed measurements are of considerablernimportance for weather prediction either for assimilationrnor verification. The ESA CryoSat-2 Fast DeliveryrnOcean Level 2 (FDM) is not an exception and thereforernvalidation of this product is required. However, due tornthe delay in releasing the official FDM product, a “similar”rnproduct produced by Centre National d'Etudes Spatialesrn(CNES) is used here. Despite its underestimation,rnthe SWH from this product is in good agreement withrnthe in-situ measurements and ECMWF wave modelrnpredictions. The agreement for the product is slightlyrnbetter than the ENVISAT RA-2 counterpart for SWHrnvalues below ～ 2.0 m and vice versa for SWH valuesrnabove ～4.0 m with an overall advantage for the CryoSatrnproduct. The CryoSat-2 SWH parameter of the CNESrnproduct was found to be stable over the whole data setrn(a period of more than two months). The unavailabilityrnof SWH product around Europe may limit the impact ofrnassimilating the FDM product into wave model aroundrnthat region.

机译：高度计的有效波高（SWH）和地表风速的测量对于天气预报进行同化或验证都是非常重要的。 ESA CryoSat-2快速交付-海洋2级（FDM）也不例外，因此需要对该产品进行验证。但是，由于正式FDM产品发布的延迟，此处使用的是国家国家空间研究中心（CNES）生产的“类似”产品。尽管该产品的SWH被低估，但它与现场测量和ECMWF波浪模型的预测非常吻合。对于低于2.0 m的SWHrn值，该产品的协议略好于ENVISAT RA-2同类产品；对于高于4.0 m的SWH值，该产品的协议反之亦然，而CryoSatrn产品具有整体优势。发现CNESrnproduct的CryoSat-2 SWH参数在整个数据集（超过两个月的时间）内是稳定的。欧洲各地SWH产品的不可用性可能会限制将FDM产品同化为该区域周围的波动模型的影响。

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来源
《Proceedings of CryoSat validation workshop 2011.》|2011年|p.1-6|共6页
会议地点 Frascati(IT)
作者
Saleh Abdalla; Peter A.E.M. Janssen;
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作者单位

European Centre for Medium-Range Weather Forecasts, Shinfield Park, RG2 9AX, Reading, UK. E-mail: Saleh.Abdalla@ecmwf.int;

European Centre for Medium-Range Weather Forecasts, Shinfield Park, RG2 9AX, Reading, UK. E-mail: Peter.Janssen@ecmwf.int;

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正文语种 eng
中图分类航天（宇宙航行）;
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GLOBAL MONITORING AND VALIDATION OF THE CRYOSAT-2 SIGNIFICANT WAVE HEIGHT PRODUCT

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