{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:32.131344", "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": "2013-Sep-10_to_2013-Sep-12_283.0_39.0"}, "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": 2013090001960}, "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": "September 10 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 12 2013"}, "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": 70372.60557517022}, "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": ["E.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": 39.0}, "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": 283.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "283.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 279.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 283.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.53, 37.03], [-80.18, 37.18], [-80.03, 37.53], [-79.68, 37.68], [-79.62, 37.8], [-80.03, 37.97], [-80.25, 38.5], [-80.03, 39.03], [-79.68, 39.18], [-79.65, 39.25], [-79.75, 39.5], [-79.53, 40.03], [-79.18, 40.18], [-79.03, 40.53], [-78.5, 40.75], [-78.25, 40.65], [-78.0, 40.75], [-77.75, 40.65], [-77.5, 40.75], [-76.97, 40.53], [-76.82, 40.18], [-76.47, 40.03], [-76.25, 39.5], [-76.35, 39.25], [-76.25, 39.0], [-76.47, 38.47], [-76.82, 38.32], [-76.96, 38.0], [-76.75, 37.5], [-76.97, 36.97], [-77.32, 36.82], [-77.47, 36.47], [-78.0, 36.25], [-78.25, 36.35], [-78.32, 36.32], [-78.47, 35.97], [-79.0, 35.75], [-79.25, 35.85], [-79.32, 35.82], [-79.47, 35.47], [-80.0, 35.25], [-80.53, 35.47], [-80.75, 36.0], [-80.65, 36.25], [-80.75, 36.5], [-80.53, 37.03]]]]}, "2013-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.53, 37.03], [-80.18, 37.18], [-80.03, 37.53], [-79.68, 37.68], [-79.62, 37.8], [-80.03, 37.97], [-80.25, 38.5], [-80.03, 39.03], [-79.68, 39.18], [-79.65, 39.25], [-79.75, 39.5], [-79.53, 40.03], [-79.18, 40.18], [-79.03, 40.53], [-78.5, 40.75], [-78.25, 40.65], [-78.0, 40.75], [-77.75, 40.65], [-77.5, 40.75], [-76.97, 40.53], [-76.82, 40.18], [-76.47, 40.03], [-76.25, 39.5], [-76.35, 39.25], [-76.25, 39.0], [-76.47, 38.47], [-76.82, 38.32], [-76.96, 38.0], [-76.75, 37.5], [-76.97, 36.97], [-77.32, 36.82], [-77.47, 36.47], [-78.0, 36.25], [-78.25, 36.35], [-78.32, 36.32], [-78.47, 35.97], [-79.0, 35.75], [-79.25, 35.85], [-79.32, 35.82], [-79.47, 35.47], [-80.0, 35.25], [-80.53, 35.47], [-80.75, 36.0], [-80.65, 36.25], [-80.75, 36.5], [-80.53, 37.03]]]]}, "2013-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.53, 37.03], [-80.18, 37.18], [-80.03, 37.53], [-79.68, 37.68], [-79.62, 37.8], [-80.03, 37.97], [-80.25, 38.5], [-80.03, 39.03], [-79.68, 39.18], [-79.65, 39.25], [-79.75, 39.5], [-79.53, 40.03], [-79.18, 40.18], [-79.03, 40.53], [-78.5, 40.75], [-78.25, 40.65], [-78.0, 40.75], [-77.75, 40.65], [-77.5, 40.75], [-76.97, 40.53], [-76.82, 40.18], [-76.47, 40.03], [-76.25, 39.5], [-76.35, 39.25], [-76.25, 39.0], [-76.47, 38.47], [-76.82, 38.32], [-76.96, 38.0], [-76.75, 37.5], [-76.97, 36.97], [-77.32, 36.82], [-77.47, 36.47], [-78.0, 36.25], [-78.25, 36.35], [-78.32, 36.32], [-78.47, 35.97], [-79.0, 35.75], [-79.25, 35.85], [-79.32, 35.82], [-79.47, 35.47], [-80.0, 35.25], [-80.53, 35.47], [-80.75, 36.0], [-80.65, 36.25], [-80.75, 36.5], [-80.53, 37.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.061803276466719}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.403031769877012}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.023259172540122, 26.321985944802066, 25.31785075830703]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.18446306476011, 28.633544800673405, 27.10421440789628]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7783601388911183, 5.157513790290897, 4.273221380449021]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.003911525200465, 7.061803276466719, 5.286941678978678]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3871338082695128, 1.8815215374012486, 1.5149396533885056]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.693978862629345, 2.4386856722499317, 1.8622203982849603]}}