This book describes the algorithms, validation and preliminary
analysis of the Global LAnd Surface Satellite (GLASS) products, a
long-term, high-quality dataset that is now freely available
worldwide to government organizations and agencies, scientific
research institutions, students and members of the general
public.
The GLASS products include leaf area index, broadband albedo,
broadband emissivity, downward shortwave radiation and
photosynthetically active radiation. The first three GLASS products
cover 1981 to 2012 with 1km and 5km spatial resolutions and 8-day
temporal resolution, and the last two GLASS products span 2008 to
2010 with 3-hour temporal resolution and 5km spatial resolution.
These GLASS products are unique. The first three are spatially
continuous and cover the longest period of time among all current
similar satellite products. The other two products are the highest
spatial-resolution global radiation products from satellite
observations that are currently available.
These products can be downloaded from Beijing Normal University
at http: //glass-product.bnu.edu.cn/and the University of Maryland
Global Land Cover Facility at http: //www.glcf.umd.edu/
The GLASS productsare the outcome of a key research project
entitled Generation & Applications of Global Products of
Essential Land Variables, supported by funding from the High-Tech
Research and Development Program of China and involving dozens of
institutions and nearly one hundred scientists and
researchers.Following an introduction, the book contains five
chapters corresponding to these five GLASS products: background,
algorithm, quality control and validation, preliminary analysis and
applications. It discusses the long-term environmental changes
detected from the GLASS products and other data sources at both
global and local scales and also provides detailed analysis of
regional hotspots where environmental changes are mainly associated
with climate change, drought, land-atmosphere interactions, and
human activities.
The book is based primarily on a set of published journal papers
about these five GLASS products and includes updated information.
Since these products have now begun to be widely used, this bookis
an essential reference document. It is also a very helpful resource
to anyone interested in satellite remote sensing and its
applications."
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