黄河三角洲Sentinel-3高精度时空连续海陆表面温度反演

doi:10.13474/j.cnki.11-2246.2023.0020

测绘通报 ›› 2023, Vol. 0 ›› Issue (1): 120-126.doi: 10.13474/j.cnki.11-2246.2023.0020

黄河三角洲Sentinel-3高精度时空连续海陆表面温度反演

张赟^1,2, 李鹏^1,2,3, 李振洪⁴, 王厚杰^1,2

1. 中国海洋大学海洋地球科学学院河口海岸带研究所, 海底科学与探测技术教育部重点实验室, 山东青岛 266100;
2. 青岛海洋科学与技术国家实验室海洋地质过程与环境功能实验室, 山东青岛 266061;
3. 中国科学院精密测量科学与技术创新研究院大地测量与地球动力学国家重点实验室, 湖北武汉 430077;
4. 长安大学地质工程与测绘学院, 陕西西安 710054

收稿日期:2022-02-23 修回日期:2022-11-20 发布日期:2023-02-08
通讯作者: 李鹏。E-mail:pengli@ouc.edu.cn
作者简介:张赟(1999-),女,硕士生,主要从事河口海岸带环境遥感研究。E-mail:zhangyun5378@stu.ouc.edu.cn
基金资助:
国家自然科学基金(42041005-4;41806108);大地测量与地球动力学国家重点实验室开放基金(SKLGED2021-5-2);河口海岸学国家重点实验室开放基金(SKLEC-KF202002)

High-precision sea-land surface temperature inversion over the Yellow River Delta with Sentinel-3

ZHANG Yun^1,2, LI Peng^1,2,3, LI Zhenhong⁴, WANG Houjie^1,2

1. Key Lab of Submarine Geosciences and Prospecting Technology, Institute of Estuarine and Coastal Zone, College of Marine Geosciences, Ocean University of China, Qingdao 266100, China;
2. Laboratory of Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China;
3. State Key Laboratory of Geodesy and Earth's Dynamics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China;
4. College of Geological Engineering and Geomatics, Chang'an University, Xi'an 710054, China

Received:2022-02-23 Revised:2022-11-20 Published:2023-02-08

摘要/Abstract

摘要： 海陆表面温度是理解全球变化与人类活动的关键参数。针对已有温度反演产品海陆边界时空不连续的问题,本文采用Sentinel-3海陆表面温度辐射计(SLSTR)光学与热红外影像,通过植被指数阈值法逐像元计算陆表与海表发射率,基于分裂窗算法反演得到黄河三角洲陆海表面时空连续温度产品。结合地面温度观测和欧洲中期天气预报中心提供的全球中等分辨率数值大气再分析产品,验证了本文陆海温度产品(均方根误差优于1.1K)反演精度高于现有公开的全球产品,可为全球时空连续温度产品反演提供参考。

关键词: Sentinel-3, 海表温度, 陆地温度, 地表发射率, 黄河三角洲

Abstract: Land surface temperature (LST) and sea surface temperature (SST) are key parameters for understanding global change and human activities. However, the existing surface temperature products are usually discontinuous at the sea and land boundary. In this study, we use Sentinel-3 sea and land surface temperature radiometer (SLSTR) to measure continuous surface temperature product of land and sea over the Yellow River Delta (YRD) with split-window algorithms, while land surface emissivity can be estimated using NDVI threshold method. Compared with ground-truth observations and the fifth generation ECMWF reanalysis (ERA5) data, this method can obtain land and sea surface temperature inversion with high accuracy, whose RMSE is lower than 1.1 K. The results show that the accuracy of land and sea surface temperature inversion is higher than existing publicly available global products and can provide reference for global spatio-temporal continuous temperature inversion.

Key words: Sentinel-3, sea surface temperature, land surface temperature, land surface emissivity, Yellow River Delta

中图分类号:

P208

张赟, 李鹏, 李振洪, 王厚杰. 黄河三角洲Sentinel-3高精度时空连续海陆表面温度反演[J]. 测绘通报, 2023, 0(1): 120-126.

ZHANG Yun, LI Peng, LI Zhenhong, WANG Houjie. High-precision sea-land surface temperature inversion over the Yellow River Delta with Sentinel-3[J]. Bulletin of Surveying and Mapping, 2023, 0(1): 120-126.

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黄河三角洲Sentinel-3高精度时空连续海陆表面温度反演

High-precision sea-land surface temperature inversion over the Yellow River Delta with Sentinel-3

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