NASA Earth Observatory image modified by SkyTruth
SkyTruth Alerts
Other Resources: About SkyTruth Alerts Address Conversion/Geocoding
Photo of pipeline explosion, Center Township, PA, taken 2 April 2019. Provided by FracTracker Alliance
SkyTruth Alerts is now SkyTruth Monitor. View the How-To Guide.
In order to put an Alerts marker on the SkyTruth Alerts map, we convert the location that was given in a source report to latitude/longitude coordinates. This is done by a process called GeoCoding. Some latitude/longitude coordinates have to be approximated and may not be in the exact location of the Alert. For instance, this can happen when only the town name is reported. Below is a list of address types and address component types that can be converted to latitude/longitude coordinates.
| street_address | indicates a precise street address. |
| route | indicates a named route (such as “US 101”). |
| intersection | indicates a major intersection, usually of two major roads. |
| political | indicates a political entity. Usually, this type indicates a polygon of some civil administration. |
| country | indicates the national political entity, and is typically the highest order type returned by the Geocoder. |
| administrative_area_level_1 | indicates a first-order civil entity below the country level. Within the United States, these administrative levels are states. Not all nations exhibit these administrative levels. |
| administrative_area_level_2 | indicates a second-order civil entity below the country level. Within the United States, these administrative levels are counties. Not all nations exhibit these administrative levels. |
| administrative_area_level_3 | indicates a third-order civil entity below the country level. This type indicates a minor civil division. Not all nations exhibit these administrative levels. |
| colloquial_area | indicates a commonly-used alternative name for the entity. |
| locality | indicates an incorporated city or town political entity. |
| sublocality | indicates an first-order civil entity below a locality. |
| neighborhood | indicates a named neighborhood. |
| premise | indicates a named location, usually a building or collection of buildings with a common name. |
| subpremise | indicates a first-order entity below a named location, usually a singular building within a collection of buildings with a common name. |
| postal_code | indicates a postal code as used to address postal mail within the country. |
| natural_feature | indicates a prominent natural feature. |
| airport | indicates an airport. |
| park | indicates a named park. |
| point_of_interest | indicates a named point of interest. Typically, these “POI”s are prominent local entities that don’t easily fit in another category such as “Empire State Building” or “Statue of Liberty.” |
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