{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:22:21.406875", "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": "2020-Nov-28_to_2020-Dec-02_167.5_-71.5"}, "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": 2020110002397}, "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": "November 28 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 02 2020"}, "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": 61520.833328946464}, "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": ["Southern Ocean"]}, "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": -71.5}, "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": 167.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "167.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 159.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 169.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -73.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -69.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[167.5, -70.75], [168.03, -70.97], [168.25, -71.5], [168.03, -72.03], [167.5, -72.25], [166.97, -72.03], [166.75, -71.5], [166.97, -70.97], [167.5, -70.75]]]]}, "2020-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[158.97, -70.53], [158.75, -70.0], [158.97, -69.47], [159.5, -69.25], [159.75, -69.35], [160.0, -69.25], [160.25, -69.35], [160.5, -69.25], [160.75, -69.35], [161.0, -69.25], [161.25, -69.35], [161.5, -69.25], [162.03, -69.47], [162.18, -69.82], [162.25, -69.85], [162.5, -69.75], [162.75, -69.85], [163.0, -69.75], [163.25, -69.85], [163.5, -69.75], [163.75, -69.85], [164.0, -69.75], [164.25, -69.85], [164.5, -69.75], [164.75, -69.85], [165.0, -69.75], [165.25, -69.85], [165.5, -69.75], [165.75, -69.85], [166.0, -69.75], [166.25, -69.85], [166.5, -69.75], [167.03, -69.97], [167.18, -70.32], [167.25, -70.35], [167.5, -70.25], [167.75, -70.35], [168.0, -70.25], [168.53, -70.47], [168.68, -70.82], [168.75, -70.85], [169.0, -70.75], [169.53, -70.97], [169.75, -71.5], [169.53, -72.03], [169.0, -72.25], [168.75, -72.15], [168.5, -72.25], [168.25, -72.15], [168.0, -72.25], [167.75, -72.15], [167.5, -72.25], [167.25, -72.15], [167.0, -72.25], [166.75, -72.15], [166.5, -72.25], [166.25, -72.15], [166.0, -72.25], [165.75, -72.15], [165.5, -72.25], [165.25, -72.15], [165.18, -72.18], [165.03, -72.53], [164.68, -72.68], [164.53, -73.03], [164.0, -73.25], [163.75, -73.15], [163.5, -73.25], [163.2, -73.12], [163.03, -73.53], [162.5, -73.75], [162.25, -73.65], [162.0, -73.75], [161.47, -73.53], [161.32, -73.18], [160.97, -73.03], [160.82, -72.68], [160.47, -72.53], [160.25, -72.0], [160.38, -71.7], [159.97, -71.53], [159.75, -71.0], [159.88, -70.7], [159.75, -70.65], [159.5, -70.75], [158.97, -70.53]]]]}, "2020-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[158.97, -70.53], [158.75, -70.0], [158.97, -69.47], [159.5, -69.25], [159.75, -69.35], [160.0, -69.25], [160.25, -69.35], [160.5, -69.25], [160.75, -69.35], [161.0, -69.25], [161.25, -69.35], [161.5, -69.25], [162.03, -69.47], [162.18, -69.82], [162.25, -69.85], [162.5, -69.75], [162.75, -69.85], [163.0, -69.75], [163.25, -69.85], [163.5, -69.75], [163.75, -69.85], [164.0, -69.75], [164.25, -69.85], [164.5, -69.75], [164.75, -69.85], [165.0, -69.75], [165.25, -69.85], [165.5, -69.75], [165.75, -69.85], [166.0, -69.75], [166.25, -69.85], [166.5, -69.75], [167.03, -69.97], [167.18, -70.32], [167.25, -70.35], [167.5, -70.25], [167.75, -70.35], [168.0, -70.25], [168.53, -70.47], [168.68, -70.82], [168.75, -70.85], [169.0, -70.75], [169.53, -70.97], [169.75, -71.5], [169.53, -72.03], [169.0, -72.25], [168.75, -72.15], [168.5, -72.25], [168.25, -72.15], [168.0, -72.25], [167.75, -72.15], [167.5, -72.25], [167.25, -72.15], [167.0, -72.25], [166.75, -72.15], [166.5, -72.25], [166.25, -72.15], [166.0, -72.25], [165.75, -72.15], [165.5, -72.25], [165.25, -72.15], [165.18, -72.18], [165.03, -72.53], [164.68, -72.68], [164.53, -73.03], [164.0, -73.25], [163.75, -73.15], [163.68, -73.18], [163.53, -73.53], [163.0, -73.75], [162.75, -73.65], [162.5, -73.75], [162.25, -73.65], [162.0, -73.75], [161.47, -73.53], [161.32, -73.18], [160.97, -73.03], [160.82, -72.68], [160.47, -72.53], [160.25, -72.0], [160.38, -71.7], [159.97, -71.53], [159.75, -71.0], [159.88, -70.7], [159.75, -70.65], [159.5, -70.75], [158.97, -70.53]]]]}, "2020-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[158.97, -70.53], [158.75, -70.0], [158.97, -69.47], [159.5, -69.25], [159.75, -69.35], [160.0, -69.25], [160.25, -69.35], [160.5, -69.25], [160.75, -69.35], [161.0, -69.25], [161.25, -69.35], [161.5, -69.25], [162.03, -69.47], [162.18, -69.82], [162.25, -69.85], [162.5, -69.75], [162.75, -69.85], [163.0, -69.75], [163.25, -69.85], [163.5, -69.75], [163.75, -69.85], [164.0, -69.75], [164.25, -69.85], [164.5, -69.75], [164.75, -69.85], [165.0, -69.75], [165.25, -69.85], [165.5, -69.75], [165.75, -69.85], [166.0, -69.75], [166.25, -69.85], [166.5, -69.75], [167.03, -69.97], [167.18, -70.32], [167.25, -70.35], [167.5, -70.25], [167.75, -70.35], [168.0, -70.25], [168.53, -70.47], [168.68, -70.82], [168.75, -70.85], [169.0, -70.75], [169.53, -70.97], [169.75, -71.5], [169.53, -72.03], [169.0, -72.25], [168.75, -72.15], [168.5, -72.25], [168.25, -72.15], [168.0, -72.25], [167.75, -72.15], [167.5, -72.25], [167.25, -72.15], [167.0, -72.25], [166.75, -72.15], [166.5, -72.25], [166.25, -72.15], [166.0, -72.25], [165.75, -72.15], [165.5, -72.25], [165.25, -72.15], [165.18, -72.18], [165.03, -72.53], [164.68, -72.68], [164.53, -73.03], [164.0, -73.25], [163.75, -73.15], [163.68, -73.18], [163.53, -73.53], [163.0, -73.75], [162.75, -73.65], [162.5, -73.75], [162.25, -73.65], [162.0, -73.75], [161.47, -73.53], [161.32, -73.18], [160.97, -73.03], [160.82, -72.68], [160.47, -72.53], [160.25, -72.0], [160.38, -71.7], [159.97, -71.53], [159.75, -71.0], [159.88, -70.7], [159.75, -70.65], [159.5, -70.75], [158.97, -70.53]]]]}, "2020-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[164.0, -73.25], [163.7, -73.12], [163.53, -73.53], [163.0, -73.75], [162.47, -73.53], [162.25, -73.0], [162.47, -72.47], [163.0, -72.25], [163.3, -72.37], [163.47, -71.97], [164.0, -71.75], [164.53, -71.97], [164.75, -72.5], [164.53, -73.03], [164.0, -73.25]]], [[[166.75, -70.35], [167.0, -70.25], [167.53, -70.47], [167.68, -70.82], [167.75, -70.85], [168.0, -70.75], [168.25, -70.85], [168.5, -70.75], [169.03, -70.97], [169.25, -71.5], [169.03, -72.03], [168.5, -72.25], [168.25, -72.15], [168.0, -72.25], [167.75, -72.15], [167.5, -72.25], [167.25, -72.15], [167.0, -72.25], [166.75, -72.15], [166.5, -72.25], [165.97, -72.03], [165.75, -71.5], [165.85, -71.25], [165.75, -71.0], [165.97, -70.47], [166.5, -70.25], [166.75, -70.35]]], [[[164.0, -69.75], [164.53, -69.97], [164.75, -70.5], [164.65, -70.75], [164.75, -71.0], [164.53, -71.53], [164.0, -71.75], [163.47, -71.53], [163.32, -71.18], [162.97, -71.03], [162.75, -70.5], [162.97, -69.97], [163.5, -69.75], [163.75, -69.85], [164.0, -69.75]]], [[[160.82, -69.82], [160.97, -69.47], [161.5, -69.25], [162.03, -69.47], [162.18, -69.82], [162.53, -69.97], [162.75, -70.5], [162.53, -71.03], [162.18, -71.18], [162.03, -71.53], [161.5, -71.75], [160.97, -71.53], [160.82, -71.18], [160.47, -71.03], [160.25, -70.5], [160.47, -69.97], [160.82, -69.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.782158353231864}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.392679654167083}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-12.598437516719855, -7.899244089000263, -7.52741138598202, -7.983188411961123, -7.635210902472636]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-12.598437516719855, -2.0339851258297017, -0.8521276299958913, -1.4225172732687952, -1.3514436352990629]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.641826870178477, 4.491266063959741, 4.7601796996634365, 4.095335893916109, 3.791891660506039]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.641826870178477, 5.739133703027392, 6.782158353231864, 5.260356132864246, 4.554741371201942]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3557777717726696, 1.749466489674772, 1.868154813209044, 1.608329016713391, 1.5253062977533811]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3557777717726696, 1.9884978250162169, 2.374887674307413, 1.94094700181903, 1.7376178523459065]}}