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| Name | Caption |
|---|---|
| Output Folder | Output folder |
| Overwrite Results | Overwrite existing results |
| Delete Output Folder Contents | Whether to delete the contents of the output folder before processing |
| Sensor Format | The data format to download and the service to use |
| Acquisition Start Date | Acquisition start date in the format YYYY-MM-DD |
| Acquisition End Date | Acquisition end date in the format YYYY-MM-DD |
| List of Acquisition Dates | A list of acquisition dates the format YYYY-MM-DD, separated by comma (,) |
| Choose specific acquistion dates | When selected, specific dates can be specified, otherwise a date range is specified |
| Download MODIS scenes with adjacent dates [-8, +7] | When selected, all available scenes from 8 days before the selected dates until 7 days after. |
| Download MODIS scenes based on grid tiles | When selected, then MODIS tiles are downloaded based on specified grid tiles, otherwise they are downloaded based on an area of interest |
| Horizontal Tile Number | The MODIS grid horizontal tile number |
| Vertical Tile Number | The MODIS grid vertical tile number |
| Area of Interest | A vector file name, WKT string, or GeoJSON string |
| Maximum Cloud Cover | Scenes with a cloud cover less than or equal to the value are downloaed |
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Output Folder
The path and name of the folder to which to write the output files.
Overwrite Results
Select this check box to overwrite the existing output files, if any exist. If this check box is left clear, and an output file exists in the relevant folder, the status of the job displays a message informing you of the existence and name of the output file. The message is also written to the event log of the job.
Delete Output Folder Contents
If checked, the contents of the output folder will be deleted before downloading any data.
Sensor Format
Choose the data format you wish to download and the service from which it will be downloaded.
Acquisition Start Date
When querying a date range, this parameter is used as the first date of the range.
Acquisition End Date
When querying a date range, this parameter is used as the last date of the range.
List of Acquisition Dates
When querying a specific list of dates, this parameter should contain a comma separated list of dates.
Choose specific acquistion dates
When selected, the "List of Acquisition Dates" field will be used in the query. Otherwise, the "Acquisition Start Date" and "Acquisition End Date" will be used in the query.
Download MODIS scenes with adjacent dates [-8, +7]
By default, when querying MODIS scenes, a list of scenes starting 8 days before and 7 days after the requested dates will be returned. When selected all of these scenes will be downloaded, otherwise the exact dates in the query will be downloaded, and not the additional scenes.
Download MODIS scenes based on grid tiles
When selected, the "Horizontal Tile Number" and "Vertical Tile Number" will be used to query MODIS scenes. Otherwise the "Area of Interest" will be used.
Horizontal Tile Number
The horizontal grid tile number of the MODIS tile to query.
Vertical Tile Number
The vertical grid tile number of the MODIS tile to query.
Area of Interest
Maximum Cloud Cover
The maximum allowed threshold for cloud cover to query. Only scenes with a cloud cover less than or equal to this value (if specified) will be downloaded.
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Preprocessing requirements
Before running this module, the following requirements must be met to ensure the job processes successfully and produces accurate results:
Some of the services used by this job require an account and authentication. In order to use these services, please modify, in the CATALYST Enterprise install, the file named "PGS/config/custom_settings.py"The module performs a query to the specified service, and downloads scenes that match the query, and places them in the specified "Output Folder".
Job results
On successful completion of the Download Scenes module, the "Output Folder" is populated with scenes that match the query, based on the selected query options and parameters.
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