{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:14:10.826236", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2020-Jun-30_to_2020-Jul-04_57.5_21.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2020060001003}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "June 30 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 04 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 54649.26829442143}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Oman"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 21.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 57.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "57.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 57.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[58.25, 21.0], [58.146, 20.75], [58.25, 20.5], [58.03, 19.97], [57.5, 19.75], [57.25, 19.854], [57.0, 19.75], [56.75, 19.854], 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20.46966991411009], [56.75, 21.0]]]}, "2020-07-01T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[55.35355339059328, 20.75], [55.25, 21.0], [55.35355339059328, 21.25], [55.25, 21.5], [55.35355339059328, 21.75], [55.25, 22.0], [55.46966991411009, 22.53033008588991], [56.0, 22.75], [56.25, 22.646446609406727], [56.32322330470336, 22.67677669529664], [56.46966991411009, 23.03033008588991], [56.82322330470336, 23.17677669529664], [56.96966991411009, 23.53033008588991], [57.5, 23.75], [58.03033008588991, 23.53033008588991], [58.25, 23.0], [58.14644660940672, 22.75], [58.25, 22.5], [58.14644660940672, 22.25], [58.25, 22.0], [58.14644660940672, 21.75], [58.25, 21.5], [58.14644660940672, 21.25], [58.25, 21.0], [58.14644660940672, 20.75], [58.25, 20.5], [58.03033008588991, 19.96966991411009], [57.5, 19.75], [57.25, 19.853553390593273], [57.0, 19.75], [56.75, 19.853553390593273], [56.5, 19.75], [56.25, 19.853553390593273], [56.0, 19.75], [55.46966991411009, 19.96966991411009], [55.25, 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