Step 1: Select a MOPITT data product and parameter(s)
The data subset options include being able to select data product types and choose a down-selection of parameters to extract. Data parameters have been grouped together based on type and are listed in the left most window.
If you choose not to select additional parameters, then a default package is put into the resulting output file. This default package includes parameters of interest to most MOPITT users including geolocation information, retrieved CO products, a priori CO profiles and retrieval averaging kernels. Any selected additional parameter grouping(s) are shown in the center window. The far right window displays the complete listing of the data parameters that will be included in your output file. For more information about the data parameters, please reference the most recent Product User's Guide.
Specific details about each parameter for Version 7 data can be found in the V7 MOPITT Level 2 Parameter Table.
Users wanting all data parameters in the file must select all parameter groupings.
This subsetting tool currently operates on MOPITT Level 2 products.
In many situations, characteristics of MOPITT daytime and nighttime products are quite different. Over land, retrieval quality is typically greater for daytime overpasses than nighttime overpasses. Users may subset MOPITT daytime and nighttime products using the Solar Zenith Angle Filter.
Step 2: Select a temporal range (optional)
Use the temporal options to narrow your search to a specific temporal domain. If you do not make a temporal selection, the default is to search the complete range of time in which the satellite has acquired data. If you limit your search to a specific time domain, the search will return all available data that intersect with your selected time range.
Step 3: Select a geospatial range (optional)
Use the geospatial options to narrow your search to a specific geospatial area. If you do not make a geospatial selection, the default is to search the whole globe. If you limit your search to a specific area, the search will return all available data that intersect with your selected area.
User-defined bounding box
Modify the geospatial fields to specify your area of interest, or use your mouse directly on the map to draw a bounding box by clicking and dragging. The map uses latitude/longitude bounds (north, south, east, and west) to define the area of a box. If you use the mouse to draw the area on the map, the fields are filled in automatically, based on the box drawn. Simply click on the map to clear your bounding box selection and reset the geospatial fields.
Latitudes and longitudes are in Decimal Degrees (DD) format.
Use: '+' for north latitudes or east longitudes; use '-' for south latitudes or west longitudes. Example: +40.68, -74.04
To cross the anti-meridian, left must be greater than right. Example: (left) +148.64, (right) -115.73