Terra MODIS和Aqua MODIS波段反射率及植被指数比较

生态学杂志

Terra MODIS和Aqua MODIS波段反射率及植被指数比较

王静;郭铌

中国气象局兰州干旱气象研究所，甘肃省干旱气候变化与减灾重点实验室，中国气象局干旱气候变化与减灾重点开放实验室，兰州730020

收稿日期:2008-01-22 修回日期:1900-01-01 出版日期:2008-10-10 发布日期:2008-10-10

Comparisons of Terra- and Aqua MODIS in band reflectance and vegetation index.

WANG Jing; GUO Ni

Key Laboratory of Arid Climatic Change and Reducing Disaster, Key Open Laboratory of Arid Climate Change and Disaster Reduction of China Meteorological Administration, Lanzhou Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China

Received:2008-01-22 Revised:1900-01-01 Online:2008-10-10 Published:2008-10-10

摘要/Abstract

摘要： 对Terra MODIS和Aqua MODIS之间单波段反射率及植被指数进行了比较。结果表明：Terra MODIS和Aqua MODIS单波段反射率及植被指数具有极显著的相关性，植被指数较单波段反射率相关性更高些；Terra MODIS单波段反射率值普遍较Aqua MODIS值低，而植被指数值普遍较Aqua MODIS值高；不同时段Terra MODIS和Aqua MODIS单波段反射率及植被指数间差异不同，植被指数在冬季差异最大，而单波段反射率则在夏秋季差异较大；不同植被类型Terra MODIS和Aqua MODIS间植被指数差异总体规律相似，但单波段反射率间差异较为复杂；草甸、草原无论是单波段反射率还是植被指数，Terra MODIS和Aqua MODIS的差异均比其他几种植被类型小，而阔叶林和一年两熟作物则差异相对大些。

关键词: 玉米生长, 土壤N₂O排放, 土壤施氮, 温度

Abstract: The comparisons of single band reflectance and vegetation index between Terra MODIS and Aqua MODIS showed that Terra MODIS and Aqua MODIS had significant correlations in single band reflectance and vegetation index, and the correlations for vegetation index were more obvious than for single band reflectance. The values of single band reflectance from Terra MODIS were lower than those from Aqua MODIS, but vegetation indices were in reverse. In addition, the differences of single band reflectance and vegetation index between Terra MODIS and Aqua MODIS changed over time, and they were greater in winter for vegetation indices, and in summer and autumn for single band reflectance. For different vegetation types, the differences of vegetation indices between Terra MODIS and Aqua MODIS showed a similar rule, while the differences of single band reflectance between Terra MODIS and Aqua MODIS were complicated. The differences in single band reflectance and vegetation index between Terra MODIS and Aqua MODIS were smaller for meadow and plain than for other vegetations, but greater for broadleaf forest and annual doubleharvest crops.

Key words: Maize growth, N₂O emission from soil, N application, Temperature

王静;郭铌 . Terra MODIS和Aqua MODIS波段反射率及植被指数比较[J]. 生态学杂志.

WANG Jing; GUO Ni . Comparisons of Terra- and Aqua MODIS in band reflectance and vegetation index. [J]. cje.

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