{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:20.374013", "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": "2017-Feb-20_to_2017-Feb-24_341.5_-75.5"}, "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": 2017020001976}, "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": "February 20 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 24 2017"}, "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": 127738.60584054187}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -75.5}, "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": 341.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "341.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 336.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -79.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -73.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.03, -78.03], [-17.25, -77.5], [-17.03, -76.97], [-16.5, -76.75], [-16.25, -76.85], [-16.0, -76.75], [-15.75, -76.85], [-15.68, -76.82], [-15.53, -76.47], [-15.0, -76.25], [-14.7, -76.37], [-14.53, -75.97], [-14.18, -75.82], [-14.03, -75.47], [-13.5, -75.25], [-13.25, -75.35], [-13.0, -75.25], [-12.47, -75.47], [-12.32, -75.82], [-12.25, -75.85], [-12.0, -75.75], [-11.75, -75.85], [-11.5, -75.75], [-10.97, -75.97], [-10.82, -76.32], [-10.47, -76.47], [-10.32, -76.82], [-10.25, -76.85], [-10.0, -76.75], [-9.47, -76.97], [-9.32, -77.32], [-8.97, -77.47], [-8.75, -78.0], [-8.97, -78.53], [-9.5, -78.75], [-9.75, -78.65], [-10.0, -78.75], [-10.25, -78.65], [-10.5, -78.75], [-10.75, -78.65], [-11.0, -78.75], [-11.25, -78.65], [-11.32, -78.68], [-11.47, -79.03], [-11.82, -79.18], [-11.97, -79.53], [-12.32, -79.68], [-12.47, -80.03], [-13.0, -80.25], [-13.25, -80.15], [-13.5, -80.25], [-13.75, -80.15], [-14.0, -80.25], [-14.53, -80.03], [-14.68, -79.68], [-15.03, -79.53], [-15.18, -79.18], [-15.53, -79.03], [-15.68, -78.68], [-16.03, -78.53], [-16.18, -78.18], [-16.25, -78.15], [-16.5, -78.25], [-17.03, -78.03]]]]}, "2017-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-20.53, -76.47], [-20.18, -76.32], [-20.03, -75.97], [-19.5, -75.75], [-19.25, -75.85], [-19.12, -75.8], [-19.25, -75.5], [-19.03, -74.97], [-18.5, -74.75], [-18.25, -74.85], [-18.0, -74.75], [-17.75, -74.85], [-17.68, -74.82], [-17.53, -74.47], [-17.0, -74.25], [-16.75, -74.35], [-16.5, -74.25], [-16.25, -74.35], [-16.0, -74.25], [-15.47, -74.47], [-15.32, -74.82], [-15.25, -74.85], [-15.0, -74.75], [-14.75, -74.85], [-14.5, -74.75], [-14.25, -74.85], [-14.0, -74.75], [-13.75, -74.85], [-13.5, -74.75], [-13.25, -74.85], [-13.0, -74.75], [-12.75, -74.85], [-12.5, -74.75], [-12.25, -74.85], [-12.0, -74.75], [-11.75, -74.85], [-11.5, -74.75], [-11.25, -74.85], [-11.0, -74.75], [-10.47, -74.97], [-10.25, -75.5], [-10.35, -75.75], [-10.25, -76.0], [-10.35, -76.25], [-10.25, -76.5], [-10.35, -76.75], [-10.32, -76.82], [-10.25, -76.85], [-10.0, -76.75], [-9.47, -76.97], [-9.32, -77.32], [-8.97, -77.47], [-8.75, -78.0], [-8.97, -78.53], [-9.5, -78.75], [-9.75, -78.65], [-10.0, -78.75], [-10.25, -78.65], [-10.5, -78.75], [-10.75, -78.65], [-11.0, -78.75], [-11.25, -78.65], [-11.32, -78.68], [-11.47, -79.03], [-11.82, -79.18], [-11.97, -79.53], [-12.32, -79.68], [-12.47, -80.03], [-13.0, -80.25], [-13.25, -80.15], [-13.5, -80.25], [-13.75, -80.15], [-14.0, -80.25], [-14.25, -80.15], [-14.5, -80.25], [-14.75, -80.15], [-15.0, -80.25], [-15.25, -80.15], [-15.5, -80.25], [-15.75, -80.15], [-16.0, -80.25], [-16.53, -80.03], [-16.68, -79.68], [-17.03, -79.53], [-17.18, -79.18], [-17.25, -79.15], [-17.5, -79.25], [-17.75, -79.15], [-18.0, -79.25], [-18.53, -79.03], [-18.68, -78.68], [-18.75, -78.65], [-19.0, -78.75], [-19.25, -78.65], [-19.5, -78.75], [-20.03, -78.53], [-20.18, -78.18], [-20.53, -78.03], [-20.75, -77.5], [-20.65, -77.25], [-20.75, -77.0], [-20.53, -76.47]]]]}, "2017-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-24.25, -75.5], [-24.03, -74.97], [-23.5, -74.75], [-23.25, -74.85], [-23.0, -74.75], [-22.75, -74.85], [-22.5, -74.75], [-22.25, -74.85], [-22.0, -74.75], [-21.75, -74.85], [-21.68, -74.82], [-21.53, -74.47], [-21.0, -74.25], [-20.75, -74.35], [-20.5, -74.25], [-20.25, -74.35], [-20.0, -74.25], [-19.75, -74.35], [-19.68, -74.32], [-19.53, -73.97], [-19.0, -73.75], [-18.75, -73.85], [-18.5, -73.75], [-18.25, -73.85], [-18.18, -73.82], [-18.03, -73.47], [-17.5, -73.25], [-17.25, -73.35], [-17.0, -73.25], [-16.75, -73.35], [-16.5, -73.25], [-16.25, -73.35], [-16.0, -73.25], [-15.75, -73.35], [-15.5, -73.25], [-14.97, -73.47], [-14.75, -74.0], [-14.97, -74.53], [-15.37, -74.7], [-15.32, -74.82], [-15.25, -74.85], [-15.0, -74.75], [-14.75, -74.85], [-14.5, -74.75], [-14.25, -74.85], [-14.0, -74.75], [-13.75, -74.85], [-13.5, -74.75], [-13.25, -74.85], [-13.0, -74.75], [-12.75, -74.85], [-12.5, -74.75], [-12.25, -74.85], [-12.0, -74.75], [-11.75, -74.85], [-11.5, -74.75], [-11.25, -74.85], [-11.0, -74.75], [-10.47, -74.97], [-10.25, -75.5], [-10.35, -75.75], [-10.25, -76.0], [-10.35, -76.25], [-10.25, -76.5], [-10.35, -76.75], [-10.32, -76.82], [-10.25, -76.85], [-10.0, -76.75], [-9.47, -76.97], [-9.32, -77.32], [-8.97, -77.47], [-8.75, -78.0], [-8.97, -78.53], [-9.5, -78.75], [-9.75, -78.65], [-10.0, -78.75], [-10.25, -78.65], [-10.5, -78.75], [-10.75, -78.65], [-11.0, -78.75], [-11.25, -78.65], [-11.32, -78.68], [-11.47, -79.03], [-11.82, -79.18], [-11.97, -79.53], [-12.32, -79.68], [-12.47, -80.03], [-13.0, -80.25], [-13.25, -80.15], [-13.5, -80.25], [-13.75, -80.15], [-14.0, -80.25], [-14.25, -80.15], [-14.5, -80.25], [-14.75, -80.15], [-15.0, -80.25], [-15.25, -80.15], [-15.5, -80.25], [-15.75, -80.15], [-16.0, -80.25], [-16.53, -80.03], [-16.68, -79.68], [-17.03, -79.53], [-17.18, -79.18], [-17.25, -79.15], [-17.5, -79.25], [-17.75, -79.15], [-18.0, -79.25], [-18.53, -79.03], [-18.68, -78.68], [-18.75, -78.65], [-19.0, -78.75], [-19.25, -78.65], [-19.5, -78.75], [-20.03, -78.53], [-20.18, -78.18], [-20.53, -78.03], [-20.75, -77.5], [-20.65, -77.25], [-20.75, -77.0], [-20.65, -76.75], [-20.68, -76.68], [-20.75, -76.65], [-21.0, -76.75], [-21.25, -76.65], [-21.5, -76.75], [-21.75, -76.65], [-22.0, -76.75], [-22.25, -76.65], [-22.5, -76.75], [-22.75, -76.65], [-23.0, -76.75], [-23.53, -76.53], [-23.68, -76.18], [-24.03, -76.03], [-24.25, -75.5]]]]}, "2017-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-24.25, -75.5], [-24.03, -74.97], [-23.5, -74.75], [-23.25, -74.85], [-23.0, -74.75], [-22.75, -74.85], [-22.5, -74.75], [-22.25, -74.85], [-22.0, -74.75], [-21.75, -74.85], [-21.68, -74.82], [-21.53, -74.47], [-21.0, -74.25], [-20.75, -74.35], [-20.5, -74.25], [-20.25, -74.35], [-20.0, -74.25], [-19.75, -74.35], [-19.68, -74.32], [-19.53, -73.97], [-19.0, -73.75], [-18.75, -73.85], [-18.5, -73.75], [-18.25, -73.85], [-18.18, -73.82], [-18.03, -73.47], [-17.5, -73.25], [-17.25, -73.35], [-17.0, -73.25], [-16.75, -73.35], [-16.5, -73.25], [-16.25, -73.35], [-16.0, -73.25], [-15.75, -73.35], [-15.5, -73.25], [-14.97, -73.47], [-14.75, -74.0], [-14.97, -74.53], [-15.37, -74.7], [-15.32, -74.82], [-15.25, -74.85], [-15.0, -74.75], [-14.75, -74.85], [-14.5, -74.75], [-14.25, -74.85], [-14.0, -74.75], [-13.75, -74.85], [-13.5, -74.75], [-13.25, -74.85], [-13.0, -74.75], [-12.75, -74.85], [-12.5, -74.75], [-12.25, -74.85], [-12.0, -74.75], [-11.75, -74.85], [-11.5, -74.75], [-11.25, -74.85], [-11.0, -74.75], [-10.47, -74.97], [-10.25, -75.5], [-10.35, -75.75], [-10.25, -76.0], [-10.35, -76.25], [-10.25, -76.5], [-10.35, -76.75], [-10.32, -76.82], [-10.25, -76.85], [-10.0, -76.75], [-9.47, -76.97], [-9.32, -77.32], [-8.97, -77.47], [-8.75, -78.0], [-8.97, -78.53], [-9.5, -78.75], [-9.75, -78.65], [-10.0, -78.75], [-10.25, -78.65], [-10.5, -78.75], [-10.75, -78.65], [-11.0, -78.75], [-11.25, -78.65], [-11.32, -78.68], [-11.47, -79.03], [-11.82, -79.18], [-11.97, -79.53], [-12.32, -79.68], [-12.47, -80.03], [-13.0, -80.25], [-13.25, -80.15], [-13.5, -80.25], [-13.75, -80.15], [-14.0, -80.25], [-14.25, -80.15], [-14.5, -80.25], [-14.75, -80.15], [-15.0, -80.25], [-15.25, -80.15], [-15.5, -80.25], [-15.75, -80.15], [-16.0, -80.25], [-16.53, -80.03], [-16.68, -79.68], [-17.03, -79.53], [-17.18, -79.18], [-17.25, -79.15], [-17.5, -79.25], [-17.75, -79.15], [-18.0, -79.25], [-18.53, -79.03], [-18.68, -78.68], [-18.75, -78.65], [-19.0, -78.75], [-19.25, -78.65], [-19.5, -78.75], [-20.03, -78.53], [-20.18, -78.18], [-20.53, -78.03], [-20.75, -77.5], [-20.65, -77.25], [-20.75, -77.0], [-20.65, -76.75], [-20.68, -76.68], [-20.75, -76.65], [-21.0, -76.75], [-21.25, -76.65], [-21.5, -76.75], [-21.75, -76.65], [-22.0, -76.75], [-22.25, -76.65], [-22.5, -76.75], [-22.75, -76.65], [-23.0, -76.75], [-23.53, -76.53], [-23.68, -76.18], [-24.03, -76.03], [-24.25, -75.5]]]]}, "2017-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-24.25, -75.5], [-24.03, -74.97], [-23.5, -74.75], [-23.25, -74.85], [-23.0, -74.75], [-22.75, -74.85], [-22.5, -74.75], [-22.25, -74.85], [-22.0, -74.75], [-21.75, -74.85], [-21.68, -74.82], [-21.53, -74.47], [-21.0, -74.25], [-20.75, -74.35], [-20.5, -74.25], [-20.25, -74.35], [-20.0, -74.25], [-19.75, -74.35], [-19.68, -74.32], [-19.53, -73.97], [-19.0, -73.75], [-18.75, -73.85], [-18.5, -73.75], [-18.25, -73.85], [-18.18, -73.82], [-18.03, -73.47], [-17.5, -73.25], [-17.25, -73.35], [-17.0, -73.25], [-16.75, -73.35], [-16.5, -73.25], [-16.25, -73.35], [-16.0, -73.25], [-15.75, -73.35], [-15.5, -73.25], [-14.97, -73.47], [-14.75, -74.0], [-14.97, -74.53], [-15.5, -74.75], [-15.75, -74.65], [-16.0, -74.75], [-16.25, -74.65], [-16.32, -74.68], [-16.46, -75.0], [-16.25, -75.5], [-16.47, -76.03], [-16.82, -76.18], [-16.97, -76.53], [-17.5, -76.75], [-17.75, -76.65], [-18.0, -76.75], [-18.25, -76.65], [-18.32, -76.68], [-18.47, -77.03], [-19.0, -77.25], [-19.5, -77.04], [-20.0, -77.25], [-20.53, -77.03], [-20.68, -76.68], [-20.75, -76.65], [-21.0, -76.75], [-21.25, -76.65], [-21.5, -76.75], [-21.75, -76.65], [-22.0, -76.75], [-22.25, -76.65], [-22.5, -76.75], [-22.75, -76.65], [-23.0, -76.75], [-23.53, -76.53], [-23.68, -76.18], [-24.03, -76.03], [-24.25, -75.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.17915669857075}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.199801267505037}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-20.82986465638686, -19.02046461163701, -13.38386969779566, -15.442389194968996, -8.3017454917524]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-18.35975571094332, -8.319531102332007, -2.4099027572729597, -5.2055735758683, -6.023848795967865]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.919388250112299, 5.47076527457896, 9.117738443713144, 7.124547333943338, 6.901136030228645]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.278065789415166, 6.8063293662994795, 13.17915669857075, 9.597273070747065, 9.397406153431348]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.53346121535188, 1.424199005021677, 2.2427603434270416, 1.697058083730292, 1.4649440107039933]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8401251111742054, 1.610009953001622, 2.568993350668719, 1.9001741033678072, 1.6395433158236135]}}