Description
SCRN4L1RAD is the Nimbus-4 Selective Chopper Radiometer (SCR) Level 1 Calibrated Radiances data product. The calibrated radiances are measured at 6 channels from 2.3 to 15 micrometers with a ground resolution of 25 km, and are "declouded" (interpolated and smoothed across regions of cloud). The radiances were used to obtain the temperatures of six successive 10-km layers of the atmosphere from earth or cloudtop level to 60-km height. The data were recovered from the original 9-track tapes, and are now stored online as daily files in their original proprietary binary format with about 14 orbits per day.
Spatial coverage is near global from latitude -80 to +80 degrees. The data are available from 27 July 1970 (day of year 208) to 20 February 1973 (day of year 51). The channel 1 temperature monitoring system failed on June 15, 1970, thereby reducing the accuracy of the SCR data. Channels 3 and 4 became noisy and unusable on April 18, 1972. The principal investigator for the SCR experiment was Dr. John T. Houghton from Oxford University.
This product was previously available from the NSSDC with the identifier ESAD-00096 (old ID 78-098A-10E).
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Download this dataset through a directory map | HTML | Access the data via HTTPS. | Open resource |
| View this dataset's read me document | README Document | Open resource | |
| This dataset's landing page | HTML | Access the dataset landing page from the GES DISC website. | Open resource |
| Get a related visualization | PNG | Typical data coverage of a Nimbus 4 SCR Level 1 daily data file. | Open resource |
| View documentation related to this dataset | HTML | N4 SCR Inventory | Open resource |
| View this dataset's user's guide | The Selective Chopper Radiometer on Nimbus IV Archived Data | Open resource | |
| View documentation related to this dataset | G-Zipped | Nimbus 4 Data Catalog | Open resource |
| View this dataset's user's guide | Nimbus 4 User's Guide | Open resource | |
| Download this dataset through Earthdata Search | HTML | Use the Earthdata Search Client to find and retrieve data sets across multiple data centers. | Open resource |