{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:17.186799", "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-Aug-17_to_2012-Aug-21_245.5_46.5"}, "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": 2012080002411}, "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": "August 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 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": "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": 75141.5745400839}, "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": 46.5}, "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": 245.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "245.5\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": 246.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.53, 45.03], [-115.0, 45.25], [-114.47, 45.03], [-114.25, 44.5], [-114.35, 44.25], [-114.25, 44.0], [-114.47, 43.47], [-115.0, 43.25], [-115.53, 43.47], [-115.75, 44.0], [-115.65, 44.25], [-115.75, 44.5], [-115.53, 45.03]]]]}, "2012-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.25, 46.15], [-115.12, 46.2], [-115.25, 46.5], [-115.03, 47.03], [-114.5, 47.25], [-114.25, 47.15], [-114.0, 47.25], [-113.47, 47.03], [-113.25, 46.5], [-113.47, 45.97], [-114.0, 45.75], [-114.25, 45.85], [-114.37, 45.8], [-114.25, 45.5], [-114.46, 45.0], [-114.25, 44.5], [-114.35, 44.25], [-114.25, 44.0], [-114.47, 43.47], [-115.0, 43.25], [-115.53, 43.47], [-115.68, 43.82], [-116.03, 43.97], [-116.25, 44.5], [-116.04, 45.0], [-116.25, 45.5], [-116.03, 46.03], [-115.5, 46.25], [-115.25, 46.15]]], [[[-118.03, 46.03], [-117.5, 46.25], [-117.25, 46.15], [-117.0, 46.25], [-116.47, 46.03], [-116.25, 45.5], [-116.47, 44.97], [-117.0, 44.75], [-117.25, 44.85], [-117.5, 44.75], [-118.03, 44.97], [-118.25, 45.5], [-118.03, 46.03]]], [[[-116.75, 47.0], [-116.53, 47.53], [-116.0, 47.75], [-115.47, 47.53], [-115.25, 47.0], [-115.47, 46.47], [-116.0, 46.25], [-116.53, 46.47], [-116.75, 47.0]]]]}, "2012-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.15, 45.25], [-118.25, 45.5], [-118.03, 46.03], [-117.68, 46.18], [-117.53, 46.53], [-117.18, 46.68], [-117.03, 47.03], [-116.68, 47.18], [-116.53, 47.53], [-116.18, 47.68], [-116.03, 48.03], [-115.68, 48.18], [-115.53, 48.53], [-115.0, 48.75], [-114.75, 48.65], [-114.5, 48.75], [-113.97, 48.53], [-113.75, 48.0], [-113.85, 47.75], [-113.75, 47.5], [-113.85, 47.25], [-113.82, 47.18], [-113.75, 47.15], [-113.5, 47.25], [-112.97, 47.03], [-112.75, 46.5], [-112.97, 45.97], [-113.5, 45.75], [-113.75, 45.85], [-113.82, 45.82], [-113.97, 45.47], [-114.32, 45.32], [-114.46, 45.0], [-114.25, 44.5], [-114.35, 44.25], [-114.25, 44.0], [-114.47, 43.47], [-115.0, 43.25], [-115.53, 43.47], [-115.68, 43.82], [-116.03, 43.97], [-116.18, 44.32], [-116.25, 44.35], [-116.32, 44.32], [-116.47, 43.97], [-117.0, 43.75], [-117.25, 43.85], [-117.5, 43.75], [-118.03, 43.97], [-118.25, 44.5], [-118.15, 44.75], [-118.25, 45.0], [-118.15, 45.25]]]]}, "2012-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.15, 45.25], [-118.25, 45.5], [-118.03, 46.03], [-117.68, 46.18], [-117.53, 46.53], [-117.18, 46.68], [-117.03, 47.03], [-116.68, 47.18], [-116.53, 47.53], [-116.18, 47.68], [-116.03, 48.03], [-115.68, 48.18], [-115.53, 48.53], [-115.0, 48.75], [-114.75, 48.65], [-114.5, 48.75], [-113.97, 48.53], [-113.75, 48.0], [-113.85, 47.75], [-113.75, 47.5], [-113.85, 47.25], [-113.82, 47.18], [-113.75, 47.15], [-113.5, 47.25], [-112.97, 47.03], [-112.75, 46.5], [-112.97, 45.97], [-113.5, 45.75], [-113.75, 45.85], [-113.82, 45.82], [-113.97, 45.47], [-114.32, 45.32], [-114.47, 44.97], [-114.87, 44.8], [-114.75, 44.5], [-114.97, 43.97], [-115.5, 43.75], [-116.03, 43.97], [-116.18, 44.32], [-116.25, 44.35], [-116.32, 44.32], [-116.47, 43.97], [-117.0, 43.75], [-117.25, 43.85], [-117.5, 43.75], [-118.03, 43.97], [-118.25, 44.5], [-118.15, 44.75], [-118.25, 45.0], [-118.15, 45.25]]]]}, "2012-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.03, 45.53], [-117.68, 45.68], [-117.65, 45.75], [-117.75, 46.0], [-117.53, 46.53], [-117.18, 46.68], [-117.03, 47.03], [-116.5, 47.25], [-116.25, 47.15], [-116.18, 47.18], [-116.15, 47.25], [-116.25, 47.5], [-116.03, 48.03], [-115.68, 48.18], [-115.53, 48.53], [-115.0, 48.75], [-114.75, 48.65], [-114.5, 48.75], [-113.97, 48.53], [-113.75, 48.0], [-113.85, 47.75], [-113.75, 47.5], [-113.85, 47.25], [-113.82, 47.18], [-113.75, 47.15], [-113.5, 47.25], [-112.97, 47.03], [-112.75, 46.5], [-112.97, 45.97], [-113.5, 45.75], [-113.75, 45.85], [-113.82, 45.82], [-113.97, 45.47], [-114.5, 45.25], [-114.75, 45.35], [-115.0, 45.25], [-115.25, 45.35], [-115.37, 45.3], [-115.25, 45.0], [-115.47, 44.47], [-116.0, 44.25], [-116.25, 44.35], [-116.32, 44.32], [-116.47, 43.97], [-117.0, 43.75], [-117.25, 43.85], [-117.5, 43.75], [-118.03, 43.97], [-118.25, 44.5], [-118.15, 44.75], [-118.25, 45.0], [-118.03, 45.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.856166451582624}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.845625483939776}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.733641257747024, 20.534745161550063, 23.21352069315128, 23.273182144458133, 22.388224558320587]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.953244573780296, 22.62718728756232, 27.313726430867803, 26.97996275852239, 25.66476204415153]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.223557981133297, 3.9323398226457416, 5.155662238809261, 5.2715946280832044, 4.398079892560781]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.255184532022554, 4.478094533102592, 6.598675186707169, 6.856166451582624, 4.989230765435309]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.177960007617741, 1.289423752162989, 1.6634252702657577, 1.6842189484898913, 1.3716014443414704]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.199398165378129, 1.4302746517880114, 1.9961209715058512, 2.1566943071575286, 1.5584166762019767]}}