High-resolution urban thermal sharpener (HUTS)

被引：146

作者：

Dominguez, Anthony ^{[1
]}

Kleissl, Jan ^{[1
]}

Luvall, Jeffrey C. ^{[2
]}

Rickman, Douglas L. ^{[2
]}

机构：

[1] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA

[2] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

来源：

REMOTE SENSING OF ENVIRONMENT | 2011年 / 115卷 / 07期

基金：

美国海洋和大气管理局; 美国国家科学基金会;

关键词：

Land surface temperature; Thermal sharpening; Urban heat island; Urban meteorology; HEAT-ISLAND; TEMPERATURE; EMISSIVITY;

D O I：

10.1016/j.rse.2011.03.008

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A high resolution urban thermal sharpener (HUTS) was developed that increases the resolution of thermal infrared (TIR) data to that of visible and near infrared (VNIR) data by fitting the relationship between radiometric surface temperature, normalized difference vegetation index (NDVI) and surface albedo (a). HUTS was applied to TIR data aggregated to 90 m to represent a satellite acquired dataset and validated against the measured 10 m data from an aircraft over San Juan, Puerto Rico. HUTS sharpening reduced the root mean square error of surface temperature at the high resolution by 17% compared to no sharpening and outperformed other sharpening methods. HUTS is proposed as a useful tool to study urban meteorology and climatology at the microscale using ASTER satellite data. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：1772 / 1780

页数：9

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