ELITE land surface temperature: hourly seamless 0.02° LST over East Asia (2021)

The Essential thermaL Infrared remoTe sEnsing (ELITE) product suite currently has four types of products, including land surface temperature (LST: clear-sky and all-sky), emissivity (NBE: narrowband emissivity; BBE: broadband emissivity; and spectral emissivity), the component of surface radiation and energy budget (SLUR: surface longwave upwelling radiation; SLDR: surface longwave downward radiation SLDR; SLNR: surface longwave net radiation), and the component of Earth’s radiation budget (OLR; outgoing longwave radiation; RSR: reflected solar radiation). The spatial-temporal resolutions of the ELITE products are mainly determined by the employed satellite data sources. For more information about ELITE products, please refer to the website (https://elite.bnu.edu.cn). This dataset is the ELITE hourly seamless 0.02 ° LST dataset over East Asia (2016-2021). Firstly, the iTES algorithm is employed to retrieve the Himawari-8/AHI LST. Secondly, the CLDAS LST is corrected to eliminate its system deviation. Finally, the multi-scale Kalman filter is employed to fuse Himawari-8/AHI LST and the bias-corrected CLDAS LST to generate 0.02 ° hourly seamless LST. The in situ validation results show that the root mean square error (RMSE) of the seamless LST is about 3k. The temporal resolution and spatial resolution of this dataset are 1 hour and 0.02°, respectively. This is the seamless LST dataset in 2021. Please click here to download the ELITE LST product in Januray-June, 2022. Dataset Characteristics: Spatial Coverage: East Asia (0-60°N, 80°E-140°E) Temporal Coverage: 2021 Spatial Resolution: 0.02 ° Temporal Resolution: one hour Data Format: Geotiff Scale: 0.01 Citation (Please cite these papers when using the data): Dong, S., Cheng, J., Shi, J., Shi, C., Sun, S., & Liu, W. (2022). A Data Fusion Method for Generating Hourly Seamless Land Surface Temperature from Himawari-8 AHI Data. Remote Sensing, 14, 5170 Zhou, S., & Cheng, J. (2020). An Improved Temperature and Emissivity Separation Algorithm for the Advanced Himawari Imager. IEEE Transactions on Geoscience and Remote Sensing, 58(10), 7105-7124. If you have any questions, please contact Prof. Jie Cheng ([e-mail]).核心热红外遥感（Essential thermal Infrared remote sensing, ELITE）产品套件目前包含四类产品，分别为地表温度（LST：晴空与全天空地表温度）、发射率（窄带发射率NBE、宽带发射率BBE及光谱发射率）、地表辐射与能量收支组分（地表长波上行辐射SLUR、地表长波下行辐射SLDR、地表长波净辐射SLNR）以及地球辐射收支组分（向外长波辐射OLR、反射太阳辐射RSR）。ELITE产品的时空分辨率主要由所采用的卫星数据源决定。如需了解ELITE产品的更多信息，请访问官网（https://elite.bnu.edu.cn）。 本数据集为东亚区域2016-2021年ELITE逐小时无缝0.02°地表温度数据集。首先采用iTES算法反演葵花八号/先进葵花成像仪（Himawari-8/AHI）地表温度；其次对CLDAS陆面数据同化系统地表温度进行校正以消除系统偏差；最后通过多尺度卡尔曼滤波融合Himawari-8/AHI地表温度与经偏差校正的CLDAS地表温度，生成0.02°逐小时无缝地表温度。原位验证结果表明，该无缝地表温度产品的均方根误差（RMSE）约为3开尔文（K）。本数据集的时间分辨率与空间分辨率分别为1小时与0.02°。 本数据集为2021年无缝地表温度数据集。请点击此处下载2022年1-6月的ELITE LST产品。 数据集特征： 空间覆盖范围：东亚区域（0°N~60°N，80°E~140°E） 时间覆盖范围：2021年 空间分辨率：0.02° 时间分辨率：1小时 数据格式：GeoTIFF 尺度因子：0.01 引用说明（使用本数据集时请引用以下论文）： 1. Dong S, Cheng J, Shi J, et al. 基于葵花8号AHI数据生成逐小时无缝地表温度的数据融合方法[J]. 遥感 (Remote Sensing), 2022, 14: 5170. 2. Zhou S, Cheng J. 面向先进葵花成像仪的改进温度与发射率分离算法[J]. IEEE地球科学与遥感汇刊 (IEEE Transactions on Geoscience and Remote Sensing), 2020, 58(10): 7105-7124. 如有任何疑问，请联系程洁教授（[e-mail]）。