{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:13.068906", "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": "2024-Jun-12_to_2024-Jun-16_197.0_57.5"}, "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": 2024060000397}, "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": "June 12 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 16 2024"}, "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": 69067.04648948314}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["Bering Sea"]}, "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": 57.5}, "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": 197.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "197.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 193.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 202.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-158.47, 56.47], [-159.0, 56.25], [-159.25, 56.35], [-159.5, 56.25], [-159.75, 56.35], [-160.0, 56.25], [-160.25, 56.35], [-160.5, 56.25], [-160.75, 56.35], [-161.0, 56.25], [-161.25, 56.35], [-161.5, 56.25], [-161.75, 56.35], [-162.0, 56.25], [-162.25, 56.35], [-162.5, 56.25], [-163.03, 56.47], [-163.18, 56.82], [-163.25, 56.85], [-163.5, 56.75], [-163.75, 56.85], [-164.0, 56.75], [-164.53, 56.97], [-164.75, 57.5], [-164.65, 57.75], [-164.68, 57.82], [-164.75, 57.85], [-165.0, 57.75], [-165.25, 57.85], [-165.5, 57.75], [-165.75, 57.85], [-166.0, 57.75], [-166.53, 57.97], [-166.68, 58.32], [-167.03, 58.47], [-167.25, 59.0], [-167.03, 59.53], [-166.5, 59.75], [-166.25, 59.65], [-166.0, 59.75], [-165.75, 59.65], [-165.5, 59.75], [-165.25, 59.65], [-165.0, 59.75], [-164.47, 59.53], [-164.32, 59.18], [-164.25, 59.15], [-164.0, 59.25], [-163.75, 59.15], [-163.5, 59.25], [-163.25, 59.15], [-163.0, 59.25], [-162.75, 59.15], [-162.5, 59.25], [-162.25, 59.15], [-162.0, 59.25], [-161.47, 59.03], [-161.32, 58.68], [-161.25, 58.65], [-161.0, 58.75], [-160.47, 58.53], [-160.32, 58.18], [-160.25, 58.15], [-160.0, 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"evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.182936158505015, 3.452638451021244, 2.9864958812103737, 2.9057116778755585, 2.6752882637738935]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.625819106084009, 2.5551633832190532, 2.277819367605332, 1.4496855675429856, 1.0117012992546393]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.402772896521593, -2.710929798703045, -2.937851466239729, -3.2143234283345303, -3.003339620287337]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.500191475966176, -3.5029576156372855, -4.199917702504479, -4.313700515767437, -3.9021574444796556]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.369555670162896, -1.5660576501295014, -1.703403094298017, -1.901238826804918, -1.758408277004163]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4423134753640743, -2.0812257100103877, -2.7055808068862652, -2.7825258061931923, -2.28815830001115]}}