Climate Change Data Portal
DOI | 10.1029/2020JD033855 |
A Four-Parameter Model for Estimating Diurnal Temperature Cycle From MODIS Land Surface Temperature Product | |
Lu L.; Zhou X.M. | |
发表日期 | 2021 |
ISSN | 2169897X |
卷号 | 126期号:8 |
英文摘要 | Land surface diurnal temperature cycle (LSDTC) is an important element in climate system. Diurnal temperature cycle (DTC) models are potential for deriving diurnal variation of land surface temperature (LST) over extended regions from satellite observations. To estimate the LSDTC at high spatial resolution from clear-sky Moderate Resolution Imaging Spectrometer (MODIS) data, this study reduced the parameter number of a five-parameter DTC model to only four by fitting the time of maximum temperature as a function of normalized differential vegetation index (NDVI), elevation and latitude. Using the ground-based LSTs, the proposed four-parameter DTC (FPD) model was evaluated for 48 and 4 available LST observations per day. The results showed that the root mean square errors (RMSEs) were 2.08 K, 0.88 K, 1.14 K, 1.31 K, 2.27 K, and 1.12 K for grassland, cropland, swamp meadow, desert steppe, desert shrub, and sand desert, respectively, for 48 observations. Comparatively, RMSEs for four observations corresponding to the MODIS overpass times were increased by less than 1 K, except for swamp meadow with an elevation greater than 3,500 m that the error was increased by 1.5 K. Applying the FPD model to MODIS LST product showed that the model could capture the variation of LSTs during a day, and the accuracy of the modeled LSTs depended on the accuracy of MODIS LST product. Generally, the proposed FPD model is simple and easy to be applied to MODIS four LSTs per day under clear skies to acquire LSDTC over extended regions with high spatial resolution. © 2021. American Geophysical Union. All Rights Reserved. |
英文关键词 | diurnal temperature cycle; four-parameter model; land surface temperature; MODIS |
语种 | 英语 |
来源期刊 | Journal of Geophysical Research: Atmospheres
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/185305 |
作者单位 | Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, China; School of Civil Engineering, Lanzhou University of Technology, Lanzhou, China |
推荐引用方式 GB/T 7714 | Lu L.,Zhou X.M.. A Four-Parameter Model for Estimating Diurnal Temperature Cycle From MODIS Land Surface Temperature Product[J],2021,126(8). |
APA | Lu L.,&Zhou X.M..(2021).A Four-Parameter Model for Estimating Diurnal Temperature Cycle From MODIS Land Surface Temperature Product.Journal of Geophysical Research: Atmospheres,126(8). |
MLA | Lu L.,et al."A Four-Parameter Model for Estimating Diurnal Temperature Cycle From MODIS Land Surface Temperature Product".Journal of Geophysical Research: Atmospheres 126.8(2021). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Lu L.]的文章 |
[Zhou X.M.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Lu L.]的文章 |
[Zhou X.M.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Lu L.]的文章 |
[Zhou X.M.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。