ELITE SLWR: global 1km 5-min SLDR at SIN Grid-Aqua (2006_213-227)

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 ELITE surface longwave downward radiation (SLDR) product at 1km spatial resolution and 5-min temporal resolution. It is provided on a Sinusoidal grid and ranges from 2000 to 2022 (continuously updated). This dataset was generated from the Moderate Resolution Imaging Spectrometer (MODIS) data using the algorithms developed by Cheng et al. (2016), Cheng et al. (2017) and Yang and Cheng. (2020).

This is the ELITE SLDR product in 2006 (DOY: 213-227). Please click here to download the ELITE SLDR product in 2006 (DOY: 228-243).

Dataset Characteristics:

Spatial Coverage: Global

Temporal Coverage: 2006-8-1 ~ 2006-8-15

Spatial Resolution: 1 km

Temporal Resolution: 5-min

Data Format: h5

Projection: Sinusoidal

Scale: 0.05

Offset: -1000

Citation(Please cite these papers when using the data):

Cheng J, Liang S. Global estimates for high-spatial-resolution clear-sky land surface upwelling longwave radiation from MODIS data. IEEE Transactions on Geoscience and Remote Sensing, 2016, 54(7): 4115-4129.

Cheng J, Liang S, Wang W, et al. An efficient hybrid method for estimating clear‐sky surface downward longwave radiation from MODIS data. Journal of Geophysical Research: Atmospheres, 2017, 122(5): 2616-2630.

Yang F, Cheng J. A framework for estimating cloudy sky surface downward longwave radiation from the derived active and passive cloud property parameters. Remote Sensing of Environment, 2020, 248: 111972.

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：其一为地表温度（Land Surface Temperature, LST，涵盖晴空与全天空工况）；其二为发射率，包括窄带发射率（Narrowband Emissivity, NBE）、宽带发射率（Broadband Emissivity, BBE）以及光谱发射率；其三为地表辐射与能量收支组分，具体包含地表长波上行辐射（Surface Longwave Upwelling Radiation, SLUR）、地表长波下行辐射（Surface Longwave Downward Radiation, SLDR）与地表长波净辐射（Surface Longwave Net Radiation, SLNR）；其四为地球辐射收支组分，涵盖向外长波辐射（Outgoing Longwave Radiation, OLR）与反射太阳辐射（Reflected Solar Radiation, 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产品的更多详情，请访问官网：https://elite.bnu.edu.cn。

本数据集为空间分辨率1km、时间分辨率5分钟的ELITE地表长波下行辐射（SLDR）产品。该数据集采用正弦曲线网格（Sinusoidal grid）存储，时间跨度为2000年至2022年（持续更新中）。本数据集基于中分辨率成像光谱仪（Moderate Resolution Imaging Spectrometer, MODIS）数据，采用Cheng等人（2016）、Cheng等人（2017）以及Yang与Cheng（2020）开发的算法生成。

此处为2006年日序（Day of Year, DOY）213-227的ELITE SLDR产品，如需下载2006年DOY 228-243的ELITE SLDR产品，请点击此处。

数据集特征：
空间覆盖范围：全球
时间覆盖范围：2006年8月1日 ~ 2006年8月15日
空间分辨率：1 km
时间分辨率：5分钟
数据格式：h5
投影方式：正弦曲线投影
尺度因子：0.05
偏移量：-1000

引用文献（使用本数据集时请引用以下论文）：
1. 程杰，梁顺林. 基于MODIS数据的高空间分辨率晴空地表上行长波辐射全球估算[J]. IEEE地球科学与遥感汇刊, 2016, 54(7): 4115-4129.
2. 程杰，梁顺林，王威，等. 基于MODIS数据估算晴空地表下行长波辐射的高效混合方法[J]. 地球物理学研究杂志：大气科学卷, 2017, 122(5): 2616-2630.
3. 杨飞，程杰. 基于反演得到的主动与被动云参数估算阴天地表下行长波辐射的框架[J]. 环境遥感, 2020, 248: 111972.

如有任何疑问，请联系程杰教授（邮箱：[e-mail]）。