Coastal Zone Colour Scanner on NIMBUS 7
Question 1
Into what general category of EOS does the instrument fall?
Colour scanner
Question 2
What capture technology is used?
Pushbroom
Question 3
Is the sensor active or passive?
Passive
Question 4
At what wavelength(s) does the sensor function?
| Band | Spectral Range(microns) |
| 1 | 0.433 to 0.453 |
| 2 | 0.510 to 0.530 |
| 3 | 0.540 to 0.560 |
| 4 | 0.660 to 0.680 |
| 5 | 0.700 to 0.800 |
| 6 | 10.5 to 12.5 |
Question 5
What resolution does the sensor have – temporal and spatial?
Temporal
Nodal Period 104 minutes
Spatial
pigment and chlorphyll concentrations and water-leaving raciances at 4km and 20km
radiances measurements at 1km and 4km
Question 6
Is the sensor carried on an airborne or spaceborne platform? What is that platform – typically?
Spacebourne – nimbus7
Question 7
Who developed/launched/manages the sensor?
It was operated by NOAA(National Oceanic and Atmospheric Administration) and NASA
Question 8
Can data be purchased from service providers?
Yes data can be got free from the nasa website
It does not have to be paid for- NASA
Question 9
What products are available?
| Level | Parameters | Units | Resolution | File Ext. |
| 1 | Calibrated radiances | mW/(cm2.sr.µm) | 1km x 1km | .ni7 |
| 1a | Calibrated radiances | mW/(cm2.sr.µm) | 4km x 4km | .ni7-4 |
| 2 | Pigment Concentration | mg/m3 | 4km x 4km | .fm4 |
| Diffuse Attenuation Coefficient | none | 4km x 4km |
| Normalized water-leaving radiance | @ 443 nm | mW/(cm2.sr.µm) | 4km x 4km |
| Normalized water-leaving radiance | @ 520 nm | mW/(cm2.sr.µm) | 4km x 4km |
| Normalized water-leaving radiance | @ 550 nm | mW/(cm2.sr.µm) | 4km x 4km |
| Aerosol radiance | @ 670 nm | mW/(cm2.sr.µm) | 4km x 4km |
| 3 | Same as for level 2,plus the standard deviation of each,the number of valid level 2 pixels,and the number of days | | ~18.5km @ equator | .dailypst,.weeklypst,.monthlypst,.monthlycomp |
Question 10
At which main application areas is the sensor aimed?
The Coastal Zone Color Scanner Experiment (CZCS), launched aboard
NIMBUS-7 in October 1978, was the first instrument devoted to the measurement of ocean color and flown on a spacecraft.
List 2 specific projects, where they have been reported, their goals and their outcomes.
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