{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:28.281469", "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-05_to_2022-Aug-07_261.0_39.5"}, "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": 2022080001760}, "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 05 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 07 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 55113.034184032884}, "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": 39.5}, "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": 261.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "261.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 259.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 262.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-101.0, 40.25], [-100.75, 40.15], [-100.68, 40.18], [-100.53, 40.53], [-100.0, 40.75], [-99.75, 40.65], [-99.5, 40.75], [-99.25, 40.65], [-99.0, 40.75], [-98.47, 40.53], [-98.32, 40.18], [-98.25, 40.15], [-98.0, 40.25], [-97.47, 40.03], [-97.32, 39.68], [-96.97, 39.53], [-96.75, 39.0], [-96.85, 38.75], [-96.75, 38.5], [-96.97, 37.97], [-97.5, 37.75], [-97.75, 37.85], [-98.0, 37.75], [-98.25, 37.85], [-98.5, 37.75], [-98.75, 37.85], [-99.0, 37.75], [-99.25, 37.85], [-99.5, 37.75], [-100.03, 37.97], [-100.18, 38.32], [-100.25, 38.35], [-100.5, 38.25], [-100.75, 38.35], [-101.0, 38.25], [-101.53, 38.47], [-101.75, 39.0], [-101.65, 39.25], [-101.75, 39.5], [-101.53, 40.03], [-101.0, 40.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.75, 39.5], [-101.52999999999997, 40.03], [-101.0, 40.25], [-100.75, 40.15], [-100.68, 40.18], [-100.52999999999997, 40.53], [-100.0, 40.75], [-99.75, 40.65], [-99.5, 40.75], [-99.25, 40.65], [-99.0, 40.75], [-98.47000000000003, 40.53], [-98.32, 40.18], [-98.25, 40.15], [-98.0, 40.25], [-97.47000000000003, 40.03], [-97.32, 39.68], [-96.97000000000003, 39.53], [-96.75, 39.0], [-96.85000000000002, 38.75], [-96.75, 38.5], [-96.97000000000003, 37.97], [-97.5, 37.75], [-97.75, 37.85], [-98.0, 37.75], [-98.25, 37.85], [-98.5, 37.75], [-98.75, 37.85], [-99.0, 37.75], [-99.25, 37.85], [-99.5, 37.75], [-100.02999999999997, 37.97], [-100.18, 38.32], [-100.25, 38.35], [-100.5, 38.25], [-100.75, 38.35], [-101.0, 38.25], [-101.52999999999997, 38.47], [-101.75, 39.0], [-101.64999999999998, 39.25], [-101.75, 39.5]]]]}, "2022-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.75, 39.5], [-101.52999999999997, 40.03], [-101.0, 40.25], [-100.75, 40.15], [-100.68, 40.18], [-100.52999999999997, 40.53], [-100.0, 40.75], [-99.75, 40.65], [-99.5, 40.75], [-99.25, 40.65], [-99.0, 40.75], [-98.47000000000003, 40.53], [-98.32, 40.18], [-98.25, 40.15], [-98.0, 40.25], [-97.47000000000003, 40.03], [-97.32, 39.68], [-96.97000000000003, 39.53], [-96.75, 39.0], [-96.85000000000002, 38.75], [-96.75, 38.5], [-96.97000000000003, 37.97], [-97.5, 37.75], [-97.75, 37.85], [-98.0, 37.75], [-98.25, 37.85], [-98.5, 37.75], [-98.75, 37.85], [-99.0, 37.75], [-99.25, 37.85], [-99.5, 37.75], [-100.02999999999997, 37.97], [-100.18, 38.32], [-100.25, 38.35], [-100.5, 38.25], [-100.75, 38.35], [-101.0, 38.25], [-101.52999999999997, 38.47], [-101.75, 39.0], [-101.64999999999998, 39.25], [-101.75, 39.5]]]]}, "2022-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.75, 39.5], [-101.52999999999997, 40.03], [-101.0, 40.25], [-100.75, 40.15], [-100.68, 40.18], [-100.52999999999997, 40.53], [-100.0, 40.75], [-99.75, 40.65], [-99.5, 40.75], [-99.25, 40.65], [-99.0, 40.75], [-98.47000000000003, 40.53], [-98.32, 40.18], [-98.25, 40.15], [-98.0, 40.25], [-97.47000000000003, 40.03], [-97.32, 39.68], [-96.97000000000003, 39.53], [-96.75, 39.0], [-96.85000000000002, 38.75], [-96.75, 38.5], [-96.97000000000003, 37.97], [-97.5, 37.75], [-97.75, 37.85], [-98.0, 37.75], [-98.25, 37.85], [-98.5, 37.75], [-98.75, 37.85], [-99.0, 37.75], [-99.25, 37.85], [-99.5, 37.75], [-100.02999999999997, 37.97], [-100.18, 38.32], [-100.25, 38.35], [-100.5, 38.25], [-100.75, 38.35], [-101.0, 38.25], [-101.52999999999997, 38.47], [-101.75, 39.0], [-101.64999999999998, 39.25], [-101.75, 39.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.781362589130026}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.957224898000359}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.458264335586534, 32.15573135549789, 31.7837225218218]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.704593560985757, 33.75221194922045, 33.74486563406367]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.947920292061082, 6.611810704046873, 6.3119436978931205]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.8656251773558665, 7.781362589130026, 7.754049988642635]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5197258604668225, 2.0758065885440136, 1.9975883105578942]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8036263872971954, 2.4428657972396253, 2.4707175903560064]}}