{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:33.253555", "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": "2010-Apr-17_to_2010-Apr-21_247.0_42.0"}, "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": 2010040001859}, "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": "April 17 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 21 2010"}, "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": "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": 65024.4996633288}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": 42.0}, "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": 247.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "247.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 244.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 248.25}, "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": 43.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.75, 42.0], [-113.53, 42.53], [-113.18, 42.68], [-113.03, 43.03], [-112.5, 43.25], [-112.25, 43.15], [-112.0, 43.25], [-111.47, 43.03], [-111.25, 42.5], [-111.47, 41.97], [-111.82, 41.82], [-111.85, 41.75], [-111.75, 41.5], [-111.97, 40.97], [-112.5, 40.75], [-113.03, 40.97], [-113.18, 41.32], [-113.53, 41.47], [-113.75, 42.0]]]]}, "2010-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-116.03, 40.97], [-116.25, 41.5], [-116.03, 42.03], [-115.5, 42.25], [-115.25, 42.15], [-115.18, 42.18], [-115.03, 42.53], [-114.5, 42.75], [-114.25, 42.65], [-114.0, 42.75], [-113.75, 42.65], [-113.5, 42.75], [-113.25, 42.65], [-113.18, 42.68], [-113.03, 43.03], [-112.5, 43.25], [-112.25, 43.15], [-112.0, 43.25], [-111.47, 43.03], [-111.25, 42.5], [-111.47, 41.97], [-111.82, 41.82], [-111.85, 41.75], [-111.75, 41.5], [-111.97, 40.97], [-112.32, 40.82], [-112.47, 40.47], [-112.82, 40.32], [-112.85, 40.25], [-112.82, 40.18], [-112.47, 40.03], [-112.25, 39.5], [-112.35, 39.25], [-112.25, 39.0], [-112.47, 38.47], [-113.0, 38.25], [-113.25, 38.35], [-113.5, 38.25], [-114.03, 38.47], [-114.25, 39.0], [-114.15, 39.25], [-114.25, 39.5], [-114.15, 39.75], [-114.18, 39.82], [-114.53, 39.97], [-114.68, 40.32], [-115.03, 40.47], [-115.18, 40.82], [-115.25, 40.85], [-115.5, 40.75], [-116.03, 40.97]]]]}, "2010-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-116.03, 40.97], [-116.25, 41.5], [-116.03, 42.03], [-115.5, 42.25], [-115.25, 42.15], [-115.18, 42.18], [-115.03, 42.53], [-114.5, 42.75], [-114.25, 42.65], [-114.18, 42.68], [-114.15, 42.75], [-114.25, 43.0], [-114.03, 43.53], [-113.5, 43.75], [-113.25, 43.65], [-113.0, 43.75], [-112.47, 43.53], [-112.32, 43.18], [-112.25, 43.15], [-112.0, 43.25], [-111.47, 43.03], [-111.25, 42.5], [-111.47, 41.97], [-111.82, 41.82], [-111.85, 41.75], [-111.75, 41.5], [-111.97, 40.97], [-112.32, 40.82], [-112.47, 40.47], [-112.82, 40.32], [-112.85, 40.25], [-112.82, 40.18], [-112.47, 40.03], [-112.25, 39.5], [-112.35, 39.25], [-112.25, 39.0], [-112.47, 38.47], [-113.0, 38.25], [-113.25, 38.35], [-113.5, 38.25], [-114.03, 38.47], [-114.25, 39.0], [-114.15, 39.25], [-114.25, 39.5], [-114.15, 39.75], [-114.18, 39.82], [-114.53, 39.97], [-114.68, 40.32], [-115.03, 40.47], [-115.18, 40.82], [-115.25, 40.85], [-115.5, 40.75], [-116.03, 40.97]]]]}, "2010-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-116.03, 40.97], [-116.25, 41.5], [-116.03, 42.03], [-115.5, 42.25], [-115.25, 42.15], [-115.18, 42.18], [-115.03, 42.53], [-114.5, 42.75], [-114.25, 42.65], [-114.18, 42.68], [-114.15, 42.75], [-114.25, 43.0], [-114.03, 43.53], [-113.5, 43.75], [-113.25, 43.65], [-113.0, 43.75], [-112.47, 43.53], [-112.32, 43.18], [-112.25, 43.15], [-112.0, 43.25], [-111.47, 43.03], [-111.25, 42.5], [-111.47, 41.97], [-111.82, 41.82], [-111.85, 41.75], [-111.75, 41.5], [-111.97, 40.97], [-112.32, 40.82], [-112.47, 40.47], [-112.82, 40.32], [-112.85, 40.25], [-112.82, 40.18], [-112.47, 40.03], [-112.25, 39.5], [-112.35, 39.25], [-112.25, 39.0], [-112.47, 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[1.4726771057830739, 1.4671779303019983, 1.5482178835534035, 1.7829193363743243, 1.4617836629427172]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5546666442576935, 1.6529255285349362, 1.7850088116207161, 2.0648004052222757, 1.5837631597776098]}}