Satellite Sensors
From CrewWiki
This pages links to the observation of the satellites of following dates, that were optimal for the validation purposes:
| Ackerman | Steve | University of Wisconsin | USA | 
|
| Baum | Bryan | University of Wisconsin | USA |
|
| Becker | Ralf. | DWD | Germany | 
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| Bennartz | Ralf | University of Wisconsin | USA |
|
<td> * 13 June 2008 12:00-15:30 </td>
- 17/18 June 2008 22:15-01:45
- 22 June 2008 10:30-12:15
- 03 July 2008 10:00-12:00
The data sets are stored on the FTP site of ICARE and is available only for CREW members, see Data_Access.
Contents |
MSG/SEVIRI
SEVIRI is a 50 cm-diameter aperture, line-by-line scanning radiometer, which provides image
data in four Visible and Near-InfraRed (VNIR) channels and eight InfraRed (IR) channels. A
key feature of this imaging instrument (Fig. 1) is its continuous imaging of the Earth in 12
spectral channels with a baseline repeat cycle of 15 min. The imaging sampling distance is
3 km at the sub-satellite point for standard channels, and down to 1 km for the High
Resolution Visible (HRV) channel. (from www.esa.int)
Data access for the CREW periods here:
./crew/observations/SEVIRI
MODIS
MODIS (Moderate-resolution Imaging Spectroradiometer) is a payload scientific instrument launched into Earth orbit by NASA in 1999 on board the Terra (EOS AM) Satellite, and in 2002 on board the Aqua (EOS PM) satellite. The instruments capture data in 36 spectral bands ranging in wavelength from 0.4 µm to 14.4 µm and at varying spatial resolutions (2 bands at 250 m, 5 bands at 500 m and 29 bands at 1 km). Together the instruments image the entire Earth every 1 to 2 days. (from Wikipedia)
Data access for the CREW periods here:
./crew/observations/MODIS
AVHRR
AVHRR instruments measure the reflectance of the Earth in 5 relatively wide (by today's standards) spectral bands. The first two are centered around the red (0.6 micrometer, 0.5 THz) and near-infrared (0.9 micrometer, 0.3 THz) regions, the third one is located around 3.5 micrometer, and the last two sample the thermal radiation emitted by the planet, around 11 and 12 micrometers, respectively. (from Wikipedia).
Data access for the CREW periods here:
./crew/observations/AVHRR
CALIOP
The Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP) is the primary instrument on the CALIPSO satellite, which was launched in 2005. CALIOP provides profiles of total backscatter at two wavelengths, from which aerosol and cloud profiles will be derived. The instrument also measures the linear depolarization of the backscattered return, allowing discrimination of cloud phase and the identification of the presence of non-spherical aerosols.
Data access for the CREW periods here:
./crew/observations/CALIOP
CPR
AMSR
Syntetic
Simulated satellites scenes can be used to validate retrieval algorithms with a 'know truth'.
Data access for the CREW periods here:
./crew/observations/SYNTHETIC
