نتایج جستجو برای: modis images

تعداد نتایج: 268828  

2003
Yufang Jin Crystal B. Schaaf Curtis E. Woodcock Feng Gao Xiaowen Li Alan H. Strahler Wolfgang Lucht Shunlin Liang

[1] The evaluation of the first available satellite-based global albedo product at 1-km resolution is essential for its application in climate studies. We evaluate the accuracy of the Moderate-Resolution Imaging Spectroradiometer (MODIS) albedo product using available field measurements at Surface Radiation Budget Network (SURFRAD) and Cloud and Radiation Testbed–Southern Great Plains (CART/SGP...

2008
M. S. Wong J. E. Nichol K. H. Lee

A study was conducted in Hong Kong with the aim of deriving algorithms for the retrieval of turbidity, chlorophyII a and suspended solids concentrations from Terra/MODIS 500m level 1B reflectance data. Rigorous atmospheric correction using Radiative Transfer Model coupled with the inputs of AERONET data and MODIS atmospheric products was carried out for deriving the water leaving reflectances. ...

2005
Mati Kahru B. Greg Mitchell Anibal Diaz Robert J. Frouin Marcel Babin Shubha Sathyendranath

MODIS medium-resolution (250and 500-m) bands were successfully used to detect and map the distribution of a harmful phytoplankton bloom (HAB) in the Paracas Bay, Peru, that caused economic losses estimated at about $28.5 million. A Red-Green-Blue combination of bands 1, 4 and 3 was used to visually distinguish the HAB while the turbidity index, a semi-quantitative measure of the amount of parti...

2015
Zhenwang Li Huan Tang Baohui Zhang Guixia Yang Xiaoping Xin

This study investigated the performances of the Moderate Resolution Imaging Spectroradiometer (MODIS) and GEOLAND2 Version 1 (GEOV1) Leaf Area Index (LAI) products using ground measurements and LAI reference maps over four sites in North China for 2011-2013. The Terra + Aqua MODIS and Terra MODIS LAI retrieved by the main algorithm and GEOV1 LAI within the valid range were evaluated and interco...

Journal: :IOP Conference Series: Materials Science and Engineering 2018

Journal: :Remote Sensing 2015
Yang Bai Man Sing Wong Wenzhong Shi Lixin Wu Kai Qin

As a critical variable to characterize the biophysical processes in ecological environment, and as a key indicator in the surface energy balance, evapotranspiration and urban heat islands, Land Surface Temperature (LST) retrieved from Thermal Infra-Red (TIR) images at both high temporal and spatial resolution is in urgent need. However, due to the limitations of the existing satellite sensors, ...

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