نتایج جستجو برای: gosat و modis
تعداد نتایج: 768220 فیلتر نتایج به سال:
Mapping of terrestrial chlorophyll fluorescence from space has shown potential for providing global measurements related to gross primary productivity (GPP). In particular, space-based fluorescence may provide information on the length of the carbon uptake period. Here, we show an example of the ability of global satellite fluorescence retrievals to track seasonal cycle of photosynthesis as est...
Abstract The measurements of one the major greenhouse gases, carbon dioxide (CO 2 ), are being made using dedicated satellite remote sensing since launch gases observing (GOSAT) by a three-way partnership between Japan Aerospace Exploration Agency (JAXA), Ministry Environment (MoE) and National Institute for Environmental Studies (NIES), Aeronautics Space Administration (NASA) Orbiting Carbon O...
The Moderate Resolution Imaging Spectroradiometer (MODIS) Leaf Area Index (LAI) Product (MOD15A2) was evaluated for the growing seasons of 2000 through 2004 in Alaska. The LAI estimate may be affected by three factors not directly related to canopy leaf area: snow melt, cloud contamination and conifer forest versus broadleaf shrub canopy type. Increases in MODIS LAI values occurred during the s...
Drought alert systems for forest fire prevention often rely on vegetation water content (VWC) monitoring which is a key parameter in forest fire hazard. In southern France, VWC is up to now monitored through regular field surveys. Thanks to the theoretical sensitivity of shortwave infrared reflectance to VWC, MODIS satellite data are potentially able to monitor VWC depending on plant species VW...
In view of the urgent need for high coverage and high-resolution atmospheric CO2 data in study carbon neutralization global change research, this combines Kriging interpolation Triple Collision (TC) algorithm to fuse three XCO2 datasets, OCO-2, GOSAT, CarbonTracker, obtain a 1° × half-monthly average dataset. Through sub division interpolation, coverages OCO-2 GOSAT interpolating datasets are i...
MODIS, the Moderate Resolution Imaging Spectroradiometer (MODIS), is scheduled for launch in late 1998 or 1999 aboard the first Earth Observing System (EOS) platform. Global, daily snow-cover maps with a spatial resolution of 500 meters will be produced from MODIS data using a fully-automated and computationally-frugal snow-mapping algorithm. Recently, modifications to the original snow-mapping...
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