{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:18.247954", "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": "2012-Jan-05_to_2012-Jan-09_60.5_41.5"}, "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": 2012010000378}, "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": "January 05 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 09 2012"}, "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": 61054.48730597849}, "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": ["Turkmenistan", "Uzbekistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia"]}, "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": 41.5}, "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": 60.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "60.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 59.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 64.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[64.0, 39.75], [64.53, 39.53], [64.75, 39.0], [64.53, 38.47], [64.0, 38.25], [63.47, 38.47], [63.25, 39.0], [63.47, 39.53], [64.0, 39.75]]]]}, "2012-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.47, 40.97], [59.25, 41.5], [59.47, 42.03], [60.0, 42.25], [60.25, 42.15], [60.5, 42.25], [61.03, 42.03], [61.2, 41.63], [61.5, 41.75], [61.75, 41.65], [62.0, 41.75], [62.25, 41.65], [62.5, 41.75], [62.75, 41.65], [62.82, 41.68], [62.97, 42.03], [63.5, 42.25], [63.75, 42.15], [64.0, 42.25], [64.25, 42.15], [64.5, 42.25], [65.03, 42.03], [65.25, 41.5], [65.03, 40.97], [64.68, 40.82], [64.65, 40.75], [64.75, 40.5], [64.54, 40.0], [64.75, 39.5], [64.65, 39.25], [64.75, 39.0], [64.53, 38.47], [64.0, 38.25], [63.47, 38.47], [63.32, 38.82], [63.25, 38.85], [63.0, 38.75], [62.75, 38.85], [62.5, 38.75], [61.97, 38.97], [61.82, 39.32], [61.47, 39.47], [61.25, 40.0], [61.35, 40.25], [61.32, 40.32], [60.97, 40.47], [60.8, 40.88], [60.5, 40.75], [60.25, 40.85], [60.0, 40.75], [59.47, 40.97]]]]}, "2012-01-07T11:30:00.000000000": {"type": 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