{"action":"create","ckan_id":null,"date_created":"Sat, 28 Feb 2026 20:42:43 GMT","date_finished":null,"harvest_job_id":"3bf9e07f-ed64-45ae-85d6-c58791e60e5a","harvest_source_id":"75a0ee24-92b3-4fea-9485-5b4f6c35f16b","id":"7c8f5a81-079a-4be4-bf9f-94b320ca7f54","identifier":"https://opendata.maryland.gov/api/views/uhss-5usc","parent_identifier":null,"source_hash":"e5be61cae375279c424ed6a93cecda115e74e8586e01be28f4ec3654f52ca3e0","source_raw":"{\"@type\": \"dcat:Dataset\", \"accessLevel\": \"public\", \"contactPoint\": {\"@type\": \"vcard:Contact\", \"fn\": \"Open Data Administrator\", \"hasEmail\": \"mailto:no-reply@opendata.maryland.gov\"}, \"description\": \"Joint Base Andrews conducts low-level helicopter training operations across areas in southern Maryland and northern Maryland including along the Potomac River.There are three separate low-level flight areas associated with training at NAS Patuxent River, two of which are in Maryland \\u2013 East Helicopter Operating Area and West Helicopter Operating Area. Both low-level flight areas cover a broad area of land across Calvert County, Dorchester County, St. Mary\\u2019s County, and Wicomico County in which NAS Patuxent River conducts low-level flight training operations with rotary-wing and some fixedwing aircraft.Some military flight training is conducted at altitudes below 10,000 feet above mean sea level, and sometimes even below 200 feet AGL. For example, nap-of-the-earth training exercises include aircraft flying just above ground level or tree line using terrain-following sensors to avoid radar detection. Due to the low altitudes and speeds of the aircraft, these training missions are conducted within designed low-level flight areas to avoid collisions with civilian aircraft. However, the development of tall structures can interfere with and create hazards for aircraft conducting low-level flight training.\", \"distribution\": [{\"@type\": \"dcat:Distribution\", \"describedBy\": \"https://opendata.maryland.gov/api/views/uhss-5usc/columns.json\", \"describedByType\": \"application/json\", \"downloadURL\": \"https://opendata.maryland.gov/api/views/uhss-5usc/rows.json?accessType=DOWNLOAD\", \"mediaType\": \"application/json\"}, {\"@type\": \"dcat:Distribution\", \"describedBy\": \"https://opendata.maryland.gov/api/views/uhss-5usc/columns.rdf\", \"describedByType\": \"application/rdf+xml\", \"downloadURL\": \"https://opendata.maryland.gov/api/views/uhss-5usc/rows.rdf?accessType=DOWNLOAD\", \"mediaType\": \"application/rdf+xml\"}, {\"@type\": \"dcat:Distribution\", \"describedBy\": \"https://opendata.maryland.gov/api/views/uhss-5usc/columns.xml\", \"describedByType\": \"application/xml\", \"downloadURL\": \"https://opendata.maryland.gov/api/views/uhss-5usc/rows.xml?accessType=DOWNLOAD\", \"mediaType\": \"application/xml\"}, {\"@type\": \"dcat:Distribution\", \"downloadURL\": \"https://opendata.maryland.gov/api/views/uhss-5usc/rows.csv?accessType=DOWNLOAD\", \"mediaType\": \"text/csv\"}], \"identifier\": \"https://opendata.maryland.gov/api/views/uhss-5usc\", \"issued\": \"2025-07-22\", \"landingPage\": \"https://opendata.maryland.gov/d/uhss-5usc\", \"modified\": \"2025-10-06\", \"publisher\": {\"@type\": \"org:Organization\", \"name\": \"opendata.maryland.gov\"}, \"title\": \"Maryland_Helicopter_Operations\"}","source_transform":null,"status":"error"}