{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:50.897808", "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": "2011-Feb-18_to_2011-Feb-21_112.5_47.5"}, "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": 2011020002187}, "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": "February 18 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 21 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 69322.24275579712}, "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": ["Mongolia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia"]}, "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": 47.5}, "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": 112.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "112.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 109.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 114.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.47, 47.47], [109.25, 48.0], [109.47, 48.53], [110.0, 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49.15], [111.5, 49.25], [111.75, 49.15], [112.0, 49.25], [112.25, 49.15], [112.5, 49.25], [113.03, 49.03], [113.2, 48.63], [113.5, 48.75], [114.03, 48.53], [114.18, 48.18], [114.53, 48.03], [114.75, 47.5], [114.53, 46.97], [114.0, 46.75], [113.75, 46.85], [113.68, 46.82], [113.53, 46.47], [113.18, 46.32], [113.03, 45.97], [112.68, 45.82], [112.53, 45.47], [112.0, 45.25], [111.75, 45.35], [111.68, 45.32], [111.53, 44.97], [111.0, 44.75], [110.75, 44.85], [110.5, 44.75], [109.97, 44.97], [109.75, 45.5], [109.85, 45.75], [109.75, 46.0], [109.85, 46.25]]]]}, "2011-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.85, 46.25], [109.75, 46.5], [109.85, 46.75], [109.75, 47.0], [109.88, 47.3], [109.47, 47.47], [109.25, 48.0], [109.47, 48.53], [110.0, 48.75], [110.25, 48.65], [110.32, 48.68], [110.47, 49.03], [111.0, 49.25], [111.25, 49.15], [111.5, 49.25], [111.75, 49.15], [112.0, 49.25], [112.25, 49.15], [112.5, 49.25], [113.03, 49.03], [113.2, 48.63], [113.5, 48.75], 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