The search settings help you apply filters to refine your results when searching for imagery. These search settings are heavily based on your active search service as the metadata within this service defines which filters are available for use. If the active image service contains the supported metadata, you can apply the following filters: Date Range, Cloud Cover, Predicted NIIRS, and Obliquity. If the metadata for these filters does not exist in your active search service, these filters will not display in the Search Settings tab. An Area of Interest filter will always be available regardless of your active search service.
Once a search setting is applied and a search is run, the map pans and zooms to the extent of the results, footprints appear on the map, and results appear on the Search Results tab, if images from the active imagery layer exist based on the defined filters.
If no images from the active imagery layer exist based on the defined filters, a message stating such appears on the Search Results tab.
Since there are multiple search settings you can enable at a time, you can view a summary of your current search settings below the search map.
Apply an area of interest filter
You can use the geometry tools on the Search Settings tab to discover imagery within a specific area of interest.
To apply an area of interest filter, complete the following steps:
- On the Search Settings tab, expand Area of Interest Filter.
- Click a geometry to search for imagery where the footprints intersect with the defined area of interest:
- Point—Click the map to drop a point.
- Line—Click the map to draw a segment. Double-click to complete the line.
- Polygon—Click the map to define a side. Double-click to complete the polygon.
- Rectangle—Click and drag the map to draw a rectangle.
- Circle—Click and drag the map to draw a circle.
- Once a geometry has been drawn on the map, click Run Search to perform a search based on the defined geometry.
- Optionally, click Clear Drawn Graphics to remove the geometry graphic from the map.
Use the Cloud Cover filter
The Cloud Cover filter allows you to narrow your search results based on the maximum cloud cover percentage you want returned. Once the filter is set, only those images whose cloud cover metadata does not exceed the specified value are returned.
To use the Cloud Cover Filter:
- Click the Search Settings tab.
- Expand the Cloud Cover Filter.
- Move the slider to your desired maximum cloud
coverage percentage.
The indicated percentage appears above the slider and changes dynamically.
- Click Run Search to complete your search.
Use the Date Range Filter
The Date Range Filter allows you to narrow your search results based on a preferred start date, end date, or range. If a specific time frame is chosen, all images from the specified range will be returned. If only a start date or end date is specified, all images after the start date and before the end date are returned respectively. If the active image service does not have metadata based on time, this search setting will not appear.
To use the date range filter, complete the following steps:
- Click the Search Settings tab.
- Expand the Date Range Filter.
- Choose your desired start date or end date from the calendar picker.
Your specified date range appears.
- Additionally, you can use Date Presets to conduct a search. You have the following choices:
- Last Day
- Last 2 Days
- Last Week
- Last Month
- Last Year
- Click Run Search to complete your search.
Note:
By default, the Date Range Filter will be set to the oldest image (Start Date) and the newest image (End Date) in the collection. You cannot pick a date beyond this date range threshold.
Use the Predicted NIIRS Filter
The Predicted NIIRS Filter allows you to narrow your search results based on the minimum amount of detail you want to see in your imagery. This filter ranges from 0.1 to 9.0 increasing every tenth (0.1) of a decimal. Once the filter is set, only those images whose Predicted NIIRS values are equal to or above your specified value are returned.
To use the Predicted NIIRS Filter, complete the following steps:
- Click the Search Settings tab.
- Expand the Predicted NIIRS Filter.
- Move the slider to your desired Predicted NIIRS value.
The indicated value appears beside the slider and changes dynamically.
- Click Run Search to complete your search.
Use the Obliquity filter
The Obliquity Filter allows you to narrow your search results based on the minimum obliquity angle. Once the filter is set, only those images whose degrees of obliqueness are equal to or above your specified value are returned.
To use the Obliquity Filter, complete the following steps:
- Click the Search Settings tab.
- Expand the Obliquity Filter.
- Move the slider to your preferred degrees of obliqueness.
The indicated degree of obliqueness appears on the top of the slider and changes dynamically.
- Click Run Search to complete your search.