Hướng dẫn sử dụng và tải về dữ liệu ảnh MODIS
The purpose of the Level 1B software
system, developed by the
MODIS Characterization and Support
Team (MCST), is to provide
calibrated MODIS data to the MODIS Science
Team (MST) for many applications in the area of Earth science. One such application is the construction of images from Level 1B output
products. Figure 1-1 shows an
example of a MODIS image taken from
the MODIS Web Image Gallery (http://modis.gsfc.nasa.gov/gallery/).
The Level 1B products do not directly contain
images such as the one in Figure 1-1. Rather, they contain the calibrated data used by other software
applications to construct
the images.
This document is the MODIS Level 1B Product
User's Guide. The contents of the Level 1B products
are defined by the Level 1B File Specifications
([8], [9], [10], and [11]). The
purpose of this Guide is to provide users with a basic understanding of
the architecture of the products – enabling users to interpret and use the products.
The Guide assumes that the user has a basic
knowledge of the construction and operation of the
MODIS instrument, as given
in references [1] and [2]. A companion
reference document, the Level 1B Products Data Dictionary [5],
provides more details of the meaning and origin of individual data items in the Level 1B products.
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