{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:31.858077", "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-Mar-31_to_2022-Apr-03_51.0_-70.5"}, "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": 2022030002623}, "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": "March 31 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 03 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": 145165.16466176423}, "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": -70.5}, "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": 51.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "51.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 58.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -72.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -67.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.97, -70.47], [44.5, -70.25], [44.75, -70.35], [44.82, -70.32], [44.97, -69.97], [45.5, -69.75], [45.75, -69.85], [46.0, -69.75], [46.25, -69.85], [46.5, -69.75], [46.75, -69.85], [46.82, -69.82], [46.97, -69.47], [47.5, -69.25], [47.75, -69.35], [48.0, -69.25], [48.25, -69.35], [48.5, -69.25], [48.75, -69.35], [49.0, -69.25], [49.25, -69.35], [49.5, -69.25], [49.75, -69.35], [50.0, -69.25], [50.25, -69.35], [50.5, -69.25], [50.75, -69.35], [51.0, -69.25], [51.25, -69.35], [51.5, -69.25], [51.75, -69.35], [52.0, -69.25], [52.25, -69.35], [52.5, -69.25], [52.75, -69.35], [52.82, -69.32], [52.97, -68.97], [53.5, -68.75], [53.75, -68.85], [54.0, -68.75], [54.25, -68.85], [54.32, -68.82], [54.47, -68.47], [54.82, -68.32], [54.85, -68.25], [54.75, -68.0], [54.97, -67.47], [55.5, -67.25], [55.75, -67.35], [56.0, -67.25], [56.25, -67.35], [56.5, -67.25], [56.75, -67.35], [57.0, -67.25], [57.25, -67.35], [57.5, -67.25], [57.75, -67.35], [58.0, -67.25], [58.25, -67.35], [58.5, -67.25], [59.03, -67.47], [59.25, -68.0], [59.15, -68.25], [59.25, -68.5], [59.03, -69.03], [58.68, -69.18], [58.53, -69.53], [58.0, -69.75], [57.75, -69.65], [57.5, -69.75], [57.25, -69.65], [57.0, -69.75], [56.75, -69.65], [56.68, -69.68], [56.53, -70.03], [56.0, -70.25], [55.75, -70.15], [55.5, -70.25], [55.25, -70.15], [55.18, -70.18], [55.03, -70.53], [54.5, -70.75], [54.25, -70.65], [54.0, -70.75], [53.75, -70.65], [53.68, -70.68], [53.53, -71.03], [53.0, -71.25], [52.75, -71.15], [52.5, -71.25], [52.25, -71.15], [52.0, -71.25], [51.75, -71.15], [51.5, -71.25], [51.25, -71.15], [51.0, -71.25], [50.75, -71.15], [50.5, -71.25], [50.25, -71.15], [50.18, -71.18], [50.03, -71.53], [49.5, -71.75], [49.25, -71.65], [49.0, -71.75], [48.75, -71.65], [48.5, -71.75], [48.25, -71.65], [48.18, -71.68], [48.03, -72.03], [47.5, -72.25], [47.25, -72.15], [47.0, -72.25], [46.75, -72.15], [46.5, -72.25], [46.25, -72.15], [46.0, -72.25], [45.5, -72.04], [45.0, -72.25], [44.75, -72.15], [44.5, -72.25], [43.97, -72.03], [43.75, -71.5], [43.85, -71.25], [43.75, -71.0], [43.97, -70.47]]]]}, "2022-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.97, -70.47], [44.5, -70.25], [44.75, -70.35], [44.82, -70.32], [44.97, -69.97], [45.5, -69.75], [45.75, -69.85], [46.0, -69.75], [46.25, -69.85], [46.5, -69.75], [46.75, -69.85], [46.82, -69.82], [46.97, -69.47], [47.5, -69.25], [47.75, -69.35], [48.0, -69.25], [48.25, -69.35], [48.5, -69.25], [48.75, -69.35], [49.0, -69.25], [49.25, -69.35], [49.5, -69.25], [49.75, -69.35], [50.0, -69.25], [50.25, -69.35], [50.5, -69.25], [50.75, -69.35], [51.0, -69.25], [51.25, -69.35], [51.5, -69.25], [51.75, -69.35], [52.0, -69.25], [52.25, -69.35], [52.5, -69.25], [52.75, -69.35], [52.82, -69.32], [52.97, -68.97], [53.5, -68.75], [53.75, -68.85], [54.0, -68.75], [54.25, -68.85], [54.32, -68.82], [54.47, -68.47], [54.82, -68.32], [54.85, -68.25], [54.75, -68.0], [54.97, -67.47], [55.5, -67.25], [55.75, -67.35], [56.0, -67.25], [56.25, -67.35], [56.5, -67.25], [56.75, -67.35], [57.0, -67.25], [57.25, -67.35], [57.5, -67.25], [57.75, -67.35], [58.0, -67.25], [58.25, -67.35], [58.5, -67.25], [59.03, -67.47], [59.25, -68.0], [59.15, -68.25], [59.25, -68.5], [59.03, -69.03], [58.68, -69.18], [58.53, -69.53], [58.0, -69.75], [57.75, -69.65], [57.5, -69.75], [57.25, -69.65], [57.0, -69.75], [56.75, -69.65], [56.68, -69.68], [56.53, -70.03], [56.13, -70.2], [56.18, -70.32], [56.25, -70.35], [56.5, -70.25], [56.75, -70.35], [57.0, -70.25], [57.25, -70.35], [57.5, -70.25], [58.03, -70.47], [58.18, -70.82], [58.53, -70.97], [58.75, -71.5], [58.53, -72.03], [58.0, -72.25], [57.75, -72.15], [57.5, -72.25], [57.25, -72.15], [57.18, -72.18], [57.03, -72.53], [56.5, -72.75], [56.25, -72.65], [56.0, -72.75], [55.75, -72.65], [55.5, -72.75], [55.25, -72.65], [55.0, -72.75], [54.75, -72.65], [54.68, -72.68], [54.53, -73.03], [54.0, -73.25], [53.75, -73.15], [53.5, -73.25], [53.25, -73.15], [53.0, -73.25], [52.75, -73.15], [52.5, -73.25], [52.25, -73.15], [52.0, -73.25], [51.75, -73.15], [51.5, -73.25], [51.25, -73.15], [51.0, -73.25], [50.47, -73.03], [50.32, -72.68], [50.25, -72.65], [50.0, -72.75], [49.75, -72.65], [49.5, -72.75], [49.25, -72.65], [49.0, -72.75], [48.75, -72.65], [48.5, -72.75], [48.25, -72.65], [48.0, -72.75], [47.47, -72.53], [47.32, -72.18], [47.25, -72.15], [47.0, -72.25], [46.75, -72.15], [46.5, -72.25], [46.25, -72.15], [46.0, -72.25], [45.5, -72.04], [45.0, -72.25], [44.75, -72.15], [44.5, -72.25], [43.97, -72.03], [43.75, -71.5], [43.85, -71.25], [43.75, -71.0], [43.97, -70.47]]]]}, "2022-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.97, -70.47], [44.5, -70.25], [44.75, -70.35], [44.82, -70.32], [44.97, -69.97], [45.5, -69.75], [45.75, -69.85], [46.0, -69.75], [46.25, -69.85], [46.5, -69.75], [46.75, -69.85], [46.82, -69.82], [46.97, -69.47], [47.5, -69.25], [47.75, -69.35], [48.0, -69.25], [48.25, -69.35], [48.5, -69.25], [48.75, -69.35], [49.0, -69.25], [49.25, -69.35], [49.5, -69.25], [49.75, -69.35], [50.0, -69.25], [50.25, -69.35], [50.5, -69.25], [50.75, -69.35], [51.0, -69.25], [51.25, -69.35], [51.5, -69.25], [51.75, -69.35], [52.0, -69.25], [52.25, -69.35], [52.5, -69.25], [52.75, -69.35], [52.82, -69.32], [52.97, -68.97], [53.5, -68.75], [53.75, -68.85], [54.0, -68.75], [54.25, -68.85], [54.32, -68.82], [54.47, -68.47], [54.82, -68.32], [54.85, -68.25], [54.75, -68.0], [54.97, -67.47], [55.5, -67.25], [55.75, -67.35], [56.0, -67.25], [56.25, -67.35], [56.5, -67.25], [56.75, -67.35], [57.0, -67.25], [57.25, -67.35], [57.5, -67.25], [57.75, -67.35], [58.0, -67.25], [58.25, -67.35], [58.5, -67.25], [59.03, -67.47], [59.25, -68.0], [59.15, -68.25], [59.25, -68.5], [59.03, -69.03], [58.68, -69.18], [58.53, -69.53], [58.0, -69.75], [57.75, -69.65], [57.5, -69.75], [57.25, -69.65], [57.0, -69.75], [56.75, -69.65], [56.68, -69.68], [56.53, -70.03], [56.13, -70.2], [56.18, -70.32], [56.25, -70.35], [56.5, -70.25], [56.75, -70.35], [57.0, -70.25], [57.25, -70.35], [57.5, -70.25], [58.03, -70.47], [58.18, -70.82], [58.53, -70.97], [58.75, -71.5], [58.53, -72.03], [58.0, -72.25], [57.75, -72.15], [57.5, -72.25], [57.25, -72.15], [57.18, -72.18], [57.03, -72.53], [56.5, -72.75], [56.25, -72.65], [56.0, -72.75], [55.75, -72.65], [55.5, -72.75], [55.25, -72.65], [55.0, -72.75], [54.75, -72.65], [54.68, -72.68], [54.53, -73.03], [54.0, -73.25], [53.75, -73.15], [53.5, -73.25], [53.25, -73.15], [53.0, -73.25], [52.75, -73.15], [52.5, -73.25], [52.25, -73.15], [52.0, -73.25], [51.75, -73.15], [51.5, -73.25], [51.25, -73.15], [51.0, -73.25], [50.47, -73.03], [50.32, -72.68], [50.25, -72.65], [50.0, -72.75], [49.75, -72.65], [49.5, -72.75], [49.25, -72.65], [49.0, -72.75], [48.75, -72.65], [48.5, -72.75], [48.25, -72.65], [48.0, -72.75], [47.47, -72.53], [47.32, -72.18], [47.25, -72.15], [47.0, -72.25], [46.75, -72.15], [46.5, -72.25], [46.25, -72.15], [46.0, -72.25], [45.5, -72.04], [45.0, -72.25], [44.75, -72.15], [44.5, -72.25], [43.97, -72.03], [43.75, -71.5], [43.85, -71.25], [43.75, -71.0], [43.97, -70.47]]]]}, "2022-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.0, -70.25], [47.25, -70.35], [47.32, -70.32], [47.47, -69.97], [48.0, -69.75], [48.25, -69.85], [48.5, -69.75], [48.75, -69.85], [49.0, -69.75], [49.25, -69.85], [49.5, -69.75], [49.75, -69.85], [50.0, -69.75], [50.25, -69.85], [50.5, -69.75], [50.75, -69.85], [51.0, -69.75], [51.25, -69.85], [51.5, -69.75], [51.75, -69.85], [52.0, -69.75], [52.25, -69.85], [52.5, -69.75], [52.75, -69.85], [53.0, -69.75], [53.25, -69.85], [53.5, -69.75], [53.75, -69.85], [54.0, -69.75], [54.25, -69.85], [54.5, -69.75], [54.75, -69.85], [55.0, -69.75], [55.25, -69.85], [55.5, -69.75], [56.03, -69.97], [56.18, -70.32], [56.25, -70.35], [56.5, -70.25], [56.75, -70.35], [57.0, -70.25], [57.25, -70.35], [57.5, -70.25], [58.03, -70.47], [58.18, -70.82], [58.53, -70.97], [58.75, -71.5], [58.53, -72.03], [58.0, -72.25], [57.75, -72.15], [57.5, -72.25], [57.25, -72.15], [57.18, -72.18], [57.03, -72.53], [56.5, -72.75], [56.25, -72.65], [56.0, -72.75], [55.75, -72.65], [55.5, -72.75], [55.25, -72.65], [55.0, -72.75], [54.75, -72.65], [54.68, -72.68], [54.53, -73.03], [54.0, -73.25], [53.75, -73.15], [53.5, -73.25], [53.25, -73.15], [53.0, -73.25], [52.75, -73.15], [52.5, -73.25], [52.25, -73.15], [52.0, -73.25], [51.75, -73.15], [51.5, -73.25], [51.25, -73.15], [51.0, -73.25], [50.47, -73.03], [50.32, -72.68], [50.25, -72.65], [50.0, -72.75], [49.75, -72.65], [49.5, -72.75], [49.25, -72.65], [49.0, -72.75], [48.75, -72.65], [48.5, -72.75], [48.25, -72.65], [48.0, -72.75], [47.47, -72.53], [47.32, -72.18], [47.25, -72.15], [47.0, -72.25], [46.75, -72.15], [46.5, -72.25], [45.97, -72.03], [45.75, -71.5], [45.97, -70.97], [46.32, -70.82], [46.47, -70.47], [47.0, -70.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.880003082849612}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.341703541388522}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-27.579248468175734, -30.844474359442984, -31.265495443552282, -35.4250652350899]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-17.897595021480697, -16.77093936579689, -17.971603588547595, -28.861652680073604]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.912693511767981, 8.807414003420652, 8.4768737582952, 7.730791999000358]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.947374194221055, 10.880003082849612, 10.226296715216506, 9.163578780219495]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.500632796338398, 1.7128994349604025, 1.635588329266888, 1.4908516625575012]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.743067881597624, 1.892173595248626, 2.015623715797415, 1.64852883201788]}}