Improved BEC SMOS Arctic Sea Surface Salinity product v3.1
Improved BEC SMOS Arctic Sea Surface Salinity product v3.1
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改进的 BEC SMOS 北极海表盐度产品 v3.1
DOI：
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发表时间：
2021
影响因子：
11.4
通讯作者：
D. Fernandez
中科院分区：
文献类型：
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作者：
Justino Martínez;C. Gabarró;A. Turiel;V. González;M. Umbert;N. Hoareau;C. González‐Haro;E. Olmedo;M. Arias;R. Catany;Laurent Bertino;R. Raj;Jiping Xie;R. Sabia;D. Fernandez
抽象的。从空间测量盐度具有挑战性，因为亮温（TB）对海面盐度（SSS）的敏感性较低（约0.5 K / psu），而公海中的SSS范围较窄（约5 psu，如果不考虑河流排放区）。这意味着对辐射计的精度要求很高（约2-3 K）。此外，TB在冷水沃茨中对SSS的灵敏度甚至更低（0.3 K / psu），使得在冷水沃茨中获取SSS更具挑战性。由于这一限制，欧空局于2019年启动了一项特殊计划，即北极+盐度项目（AO/1-9158/18/I-BG），以生产比现有产品质量和分辨率更好的增强型北极SSS产品。本文介绍了用于生产新的增强型北极SMOS SSS产品的方法（Martínez等人，2020年）。该产品由EASE 2.0网格中25公里的9天平均地图组成。该产品由巴塞罗那专家中心（BEC，http：//bec.icm.csic.es/）免费提供，DOI编号为：10.20350/digitalCSIC/12620。这一新产品的主要变化是提高了有效的空间分辨率，从而可以更好地监测中尺度结构（大于50公里），这贝内河流排放监测。
Abstract. Measuring salinity from space is challenging since the sensitivity of the brightness temperature (TB) to sea surface salinity (SSS) is low (about 0.5 K / psu), while the SSS range in the open ocean is narrow (about 5 psu, if river discharge areas are not considered). This translates into a high accuracy requirement of the radiometer (about 2–3 K). Moreover, the sensitivity of the TB to SSS at cold waters is even lower (0.3 K / psu), making the retrieval of the SSS in the cold waters even more challenging. Due to this limitation, ESA launched a specific initiative in 2019, the Arctic+Salinity project (AO/1-9158/18/I-BG), to produce an enhanced Arctic SSS product with better quality and resolution than the available products. This paper presents the methodologies used to produce the new enhanced Arctic SMOS SSS product (Martínez et al., 2020) . The product consists of 9-day averaged maps in an EASE 2.0 grid of 25 km. The product is freely distributed from the Barcelona Expert Center (BEC, http://bec.icm.csic.es/) with the DOI number: 10.20350/digitalCSIC/12620. The major change in this new product is its improvement of the effective spatial resolution that permits better monitoring of the mesoscale structures (larger than 50 Km), which benefits the river discharges monitoring.
通过现场测量验证 SMAP SSS
影响因子：
13.5
作者：
Tang W
通讯作者：
Tang W