230
THE CONTINENTAL INTEGRATED GROUNDTRUTH SITE NETWORK
Chapter 24
2.
CIGSN is a network of Australian land sites that is being developed for
the calibration and validation of satellite data and products, with a particular
emphasis on the components of the SRB and the surface properties that
control those components and influence their measurement from Earth
Observation satellites.
The project’s goals are
development of techniques for retrieving land surface radiation
parameters from satellite data
calibration of satellite data and products
validation and improvement of numerical climate models
acquisition of a long time series of surface radiation measurements.
The emphasis is on newer sensors, such as ATSR, IMG and POLDER,
and those planned for launch soon, including AATSR, GLI, ASTER and
MODIS.
Two sites have been established in extremely flat and homogeneous
natural terrain (Figure 1). Both are characterized by low atmospheric aerosol
and water vapor amounts. The Uardry site (145.305° E, 34.392° S), shown in
Figure 2, is located near the town of Hay in pasture that is typical of much of
eastern Australia; here, data have been collected since mid-1992. Prata
(1994) gives more detail on the Uardry site. The Amburla site (133.119° E,
23.385° S), near Alice Springs in central Australia, is located in arid grazing
land and has operated since early 1995.
THE CONTINENTAL INTEGRATED GROUNDTRUTH SITE NETWORK
Chapter 24
2.
CIGSN is a network of Australian land sites that is being developed for
the calibration and validation of satellite data and products, with a particular
emphasis on the components of the SRB and the surface properties that
control those components and influence their measurement from Earth
Observation satellites.
The project’s goals are
development of techniques for retrieving land surface radiation
parameters from satellite data
calibration of satellite data and products
validation and improvement of numerical climate models
acquisition of a long time series of surface radiation measurements.
The emphasis is on newer sensors, such as ATSR, IMG and POLDER,
and those planned for launch soon, including AATSR, GLI, ASTER and
MODIS.
Two sites have been established in extremely flat and homogeneous
natural terrain (Figure 1). Both are characterized by low atmospheric aerosol
and water vapor amounts. The Uardry site (145.305° E, 34.392° S), shown in
Figure 2, is located near the town of Hay in pasture that is typical of much of
eastern Australia; here, data have been collected since mid-1992. Prata
(1994) gives more detail on the Uardry site. The Amburla site (133.119° E,
23.385° S), near Alice Springs in central Australia, is located in arid grazing
land and has operated since early 1995.