{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:49.294679", "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": "2022-Jul-12_to_2022-Jul-18_244.5_40.5"}, "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": 2022070001956}, "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": "July 12 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 18 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 62358.9070354333}, "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": 40.5}, "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": 244.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "244.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 242.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 246.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.25}, "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": {"2022-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.5, 41.25], [-114.97, 41.03], [-114.75, 40.5], [-114.97, 39.97], [-115.5, 39.75], [-116.03, 39.97], [-116.25, 40.5], [-116.03, 41.03], [-115.5, 41.25]]]]}, "2022-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-117.03, 42.03], [-116.68, 42.18], [-116.53, 42.53], [-116.0, 42.75], [-115.75, 42.65], [-115.5, 42.75], [-114.97, 42.53], [-114.75, 42.0], [-114.87, 41.7], [-114.47, 41.53], [-114.25, 41.0], [-114.47, 40.47], [-114.82, 40.32], [-114.97, 39.97], [-115.5, 39.75], [-116.03, 39.97], [-116.18, 40.32], [-116.25, 40.35], [-116.5, 40.25], [-117.03, 40.47], [-117.25, 41.0], [-117.15, 41.25], [-117.25, 41.5], [-117.03, 42.03]]]]}, "2022-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-117.03, 42.03], [-116.68, 42.18], [-116.53, 42.53], [-116.0, 42.75], [-115.75, 42.65], [-115.5, 42.75], [-114.97, 42.53], [-114.75, 42.0], [-114.87, 41.7], [-114.47, 41.53], [-114.25, 41.0], [-114.47, 40.47], [-114.82, 40.32], [-114.97, 39.97], [-115.5, 39.75], [-115.75, 39.85], [-116.0, 39.75], [-116.53, 39.97], [-116.68, 40.32], [-117.03, 40.47], [-117.25, 41.0], [-117.15, 41.25], [-117.25, 41.5], [-117.03, 42.03]]]]}, "2022-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-116.68, 42.18], [-116.65, 42.25], [-116.68, 42.32], [-117.03, 42.47], [-117.25, 43.0], [-117.03, 43.53], [-116.5, 43.75], [-116.0, 43.54], [-115.5, 43.75], [-114.97, 43.53], [-114.82, 43.18], [-114.75, 43.15], [-114.5, 43.25], [-114.25, 43.15], [-114.0, 43.25], [-113.47, 43.03], [-113.25, 42.5], [-113.47, 41.97], [-113.82, 41.82], [-113.85, 41.75], [-113.75, 41.5], [-113.97, 40.97], [-114.32, 40.82], [-114.35, 40.75], [-114.25, 40.5], [-114.47, 39.97], [-115.0, 39.75], [-115.25, 39.85], [-115.5, 39.75], [-115.75, 39.85], [-116.0, 39.75], [-116.53, 39.97], [-116.68, 40.32], [-116.75, 40.35], [-117.0, 40.25], [-117.53, 40.47], [-117.75, 41.0], [-117.53, 41.53], [-117.18, 41.68], [-117.03, 42.03], [-116.68, 42.18]]]]}, "2022-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.03, 42.03], [-117.5, 42.25], [-117.25, 42.15], [-117.0, 42.25], [-116.75, 42.15], [-116.68, 42.18], [-116.65, 42.25], [-116.68, 42.32], [-117.03, 42.47], [-117.25, 43.0], [-117.03, 43.53], [-116.5, 43.75], [-116.0, 43.54], [-115.5, 43.75], [-114.97, 43.53], [-114.82, 43.18], [-114.75, 43.15], [-114.5, 43.25], [-114.25, 43.15], [-114.0, 43.25], [-113.47, 43.03], [-113.25, 42.5], [-113.47, 41.97], [-113.82, 41.82], [-113.85, 41.75], [-113.75, 41.5], [-113.97, 40.97], [-114.32, 40.82], [-114.35, 40.75], [-114.25, 40.5], [-114.47, 39.97], [-115.0, 39.75], [-115.25, 39.85], [-115.5, 39.75], [-115.75, 39.85], [-116.0, 39.75], [-116.53, 39.97], [-116.68, 40.32], [-116.75, 40.35], [-117.0, 40.25], [-117.25, 40.35], [-117.5, 40.25], [-118.03, 40.47], [-118.25, 41.0], [-118.15, 41.25], [-118.25, 41.5], [-118.03, 42.03]]]]}, "2022-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.03, 42.03], [-117.5, 42.25], [-117.25, 42.15], [-117.0, 42.25], [-116.75, 42.15], [-116.68, 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"value": [25.80827225094913, 28.13421681307119, 27.15639787040169, 28.52519609172049, 28.345689189780956, 29.10001194819, 28.030935179796415]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.80827225094913, 29.657067710054946, 28.73447274434551, 31.722777973798088, 31.076338833130137, 31.42333287273567, 31.033641827091515]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8300455508251616, 5.488373808862731, 4.243535518993729, 4.84847779419587, 4.409831813478758, 5.11056713241275, 4.377201325913052]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.8300455508251616, 6.996632898594612, 4.715908024789655, 5.914986601744602, 5.068588697166035, 5.926048611145461, 4.969673445762112]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3005205122871222, 1.7708089969355578, 1.399899739845233, 1.5250461725510682, 1.3794401603986988, 1.5968817536881939, 1.3859133617750778]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3005205122871222, 2.133413310949067, 1.508760447507652, 1.727960889709235, 1.55256637586328, 1.904344838606315, 1.538912261660718]}}