{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:29.733249", "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-Aug-07_to_2022-Aug-10_240.5_46.0"}, "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": 2022080001876}, "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 07 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 10 2022"}, "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": 59473.145791419694}, "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": []}, "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": 46.0}, "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": 240.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "240.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 238.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 241.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-121.68, 47.18], [-121.65, 47.25], [-121.75, 47.5], [-121.65, 47.75], [-121.75, 48.0], [-121.53, 48.53], [-121.0, 48.75], [-120.75, 48.65], [-120.5, 48.75], [-119.97, 48.53], [-119.82, 48.18], [-119.75, 48.15], [-119.5, 48.25], [-119.25, 48.15], [-119.0, 48.25], [-118.47, 48.03], [-118.32, 47.68], [-117.97, 47.53], [-117.75, 47.0], [-117.97, 46.47], [-118.32, 46.32], [-118.35, 46.25], [-118.32, 46.18], [-117.97, 46.03], [-117.75, 45.5], [-117.97, 44.97], [-118.5, 44.75], [-118.75, 44.85], [-119.0, 44.75], [-119.25, 44.85], [-119.32, 44.82], [-119.47, 44.47], [-120.0, 44.25], [-120.53, 44.47], [-120.7, 44.88], [-121.0, 44.75], [-121.53, 44.97], [-121.75, 45.5], [-121.62, 45.8], [-122.03, 45.97], [-122.25, 46.5], [-122.03, 47.03], [-121.68, 47.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.03, 45.97], [-122.25, 46.5], [-122.03, 47.03], [-121.5, 47.25], [-120.97, 47.03], [-120.75, 46.5], [-120.87, 46.2], [-120.47, 46.03], [-120.25, 45.5], [-120.47, 44.97], [-121.0, 44.75], [-121.53, 44.97], [-121.75, 45.5], [-121.62, 45.8], [-122.03, 45.97]]]]}, "2022-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-121.65, 47.25], [-121.75, 47.5], [-121.65, 47.75], [-121.75, 48.0], [-121.53, 48.53], [-121.0, 48.75], [-120.75, 48.65], [-120.5, 48.75], [-119.97, 48.53], [-119.82, 48.18], [-119.75, 48.15], [-119.5, 48.25], [-119.25, 48.15], [-119.0, 48.25], [-118.47, 48.03], [-118.32, 47.68], [-117.97, 47.53], [-117.75, 47.0], [-117.97, 46.47], [-118.32, 46.32], [-118.35, 46.25], [-118.32, 46.18], [-117.97, 46.03], [-117.75, 45.5], [-117.97, 44.97], [-118.5, 44.75], [-118.75, 44.85], [-119.0, 44.75], [-119.25, 44.85], [-119.32, 44.82], [-119.47, 44.47], [-120.0, 44.25], [-120.53, 44.47], [-120.69999999999999, 44.88], [-121.0, 44.75], [-121.53, 44.97], [-121.75, 45.5], [-121.62, 45.8], [-122.03, 45.97], [-122.25, 46.5], [-122.03, 47.03], [-121.68, 47.18], [-121.65, 47.25]]]]}, "2022-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-121.65, 47.25], [-121.75, 47.5], [-121.65, 47.75], [-121.75, 48.0], [-121.53, 48.53], [-121.0, 48.75], [-120.75, 48.65], [-120.5, 48.75], [-119.97, 48.53], [-119.82, 48.18], [-119.75, 48.15], [-119.5, 48.25], [-119.25, 48.15], [-119.0, 48.25], [-118.47, 48.03], [-118.32, 47.68], [-117.97, 47.53], [-117.75, 47.0], [-117.97, 46.47], [-118.32, 46.32], [-118.35, 46.25], [-118.32, 46.18], [-117.97, 46.03], [-117.75, 45.5], [-117.97, 44.97], [-118.5, 44.75], [-118.75, 44.85], [-119.0, 44.75], [-119.25, 44.85], [-119.32, 44.82], [-119.47, 44.47], [-120.0, 44.25], [-120.53, 44.47], [-120.69999999999999, 44.88], [-121.0, 44.75], [-121.53, 44.97], [-121.75, 45.5], [-121.62, 45.8], [-122.03, 45.97], [-122.25, 46.5], [-122.03, 47.03], [-121.68, 47.18], [-121.65, 47.25]]]]}, "2022-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-121.75, 47.5], [-121.65, 47.75], [-121.75, 48.0], [-121.53, 48.53], [-121.0, 48.75], [-120.75, 48.65], [-120.5, 48.75], [-119.97, 48.53], [-119.82, 48.18], [-119.75, 48.15], [-119.5, 48.25], [-119.25, 48.15], [-119.0, 48.25], [-118.47, 48.03], [-118.32, 47.68], [-117.97, 47.53], [-117.75, 47.0], [-117.97, 46.47], [-118.32, 46.32], [-118.35, 46.25], [-118.32, 46.18], [-117.97, 46.03], [-117.75, 45.5], [-117.97, 44.97], [-118.5, 44.75], [-118.75, 44.85], [-119.0, 44.75], [-119.25, 44.85], [-119.32, 44.82], [-119.47, 44.47], [-120.0, 44.25], [-120.53, 44.47], [-120.75, 45.0], [-120.65, 45.25], [-120.68, 45.32], [-121.03, 45.47], [-121.25, 46.0], [-121.15, 46.25], [-121.18, 46.32], [-121.53, 46.47], [-121.75, 47.0], [-121.65, 47.25], [-121.75, 47.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.045828233061286}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.2833163762090125}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.567488863502717, 27.0600169873328, 27.558239668703777, 27.447757115880506]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.98264886242174, 31.50983272847799, 32.526462569146645, 32.607021593308616]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.604811293240942, 4.954377377402657, 5.632164104406637, 5.31406890478519]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.7271913714675975, 7.045828233061286, 6.764748897194806, 6.283675118923725]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3818949698621448, 1.548827196834259, 1.7436542938994566, 1.6296752829284884]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3970864776928174, 2.2097041079118784, 2.1147224690328494, 2.0461218175122835]}}