{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:24.712880", "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-Feb-11_to_2022-Feb-13_296.0_-34.0"}, "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": 2022020000518}, "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 11 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 13 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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 102105.76908721056}, "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": ["Argentina"]}, "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": -34.0}, "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": 296.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -36.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-65.75, -34.0], [-65.65, -33.75], [-65.75, -33.5], [-65.54, -33.0], [-65.75, -32.5], [-65.65, -32.25], [-65.75, -32.0], [-65.53, -31.47], [-65.0, -31.25], [-64.75, -31.35], [-64.5, -31.25], [-63.97, -31.47], [-63.82, -31.82], [-63.75, -31.85], [-63.5, -31.75], [-62.97, -31.97], [-62.75, -32.5], [-62.96, -33.0], [-62.82, -33.32], [-62.47, -33.47], [-62.32, -33.82], [-61.97, -33.97], [-61.82, -34.32], [-61.47, -34.47], [-61.32, -34.82], [-60.97, -34.97], [-60.75, -35.5], [-60.85, -35.75], [-60.75, -36.0], [-60.97, -36.53], [-61.5, -36.75], [-62.0, -36.54], [-62.5, -36.75], [-62.75, -36.65], [-63.0, -36.75], [-63.53, -36.53], [-63.68, -36.18], [-63.75, -36.15], [-64.0, -36.25], [-64.25, -36.15], [-64.5, -36.25], [-65.03, -36.03], [-65.18, -35.68], [-65.53, -35.53], [-65.75, -35.0], [-65.65, -34.75], [-65.75, -34.5], [-65.65, -34.25], [-65.75, -34.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, -34.5], [-65.64999999999998, -34.25], [-65.75, -34.0], [-65.64999999999998, -33.75], [-65.75, -33.5], [-65.54000000000002, -33.0], [-65.75, -32.5], [-65.64999999999998, -32.25], [-65.75, -32.0], [-65.52999999999997, -31.47], [-65.0, -31.25], [-64.75, -31.35], [-64.5, -31.25], [-63.97000000000003, -31.47], [-63.81999999999999, -31.82], [-63.75, -31.85], [-63.5, -31.75], [-62.97000000000003, -31.97], [-62.75, -32.5], [-62.95999999999998, -33.0], [-62.81999999999999, -33.32], [-62.47000000000003, -33.47], [-62.31999999999999, -33.82], [-61.97000000000003, -33.97], [-61.81999999999999, -34.32], [-61.47000000000003, -34.47], [-61.31999999999999, -34.82], [-60.97000000000003, -34.97], [-60.75, -35.5], [-60.85000000000002, -35.75], [-60.75, -36.0], [-60.97000000000003, -36.53], [-61.5, -36.75], [-62.0, -36.54], [-62.5, -36.75], [-62.75, -36.65], [-63.0, -36.75], [-63.52999999999997, -36.53], [-63.68000000000001, -36.18], [-63.75, -36.15], [-64.0, -36.25], [-64.25, -36.15], [-64.5, -36.25], [-65.02999999999997, -36.03], [-65.18, -35.68], [-65.52999999999997, -35.53], [-65.75, -35.0], [-65.64999999999998, -34.75], [-65.75, -34.5]]]]}, "2022-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, -34.5], [-65.64999999999998, -34.25], [-65.75, -34.0], [-65.64999999999998, -33.75], [-65.75, -33.5], [-65.54000000000002, -33.0], [-65.75, -32.5], [-65.64999999999998, -32.25], [-65.75, -32.0], [-65.52999999999997, -31.47], [-65.0, -31.25], [-64.75, -31.35], [-64.5, -31.25], [-63.97000000000003, -31.47], [-63.81999999999999, -31.82], [-63.75, -31.85], [-63.5, -31.75], [-62.97000000000003, -31.97], [-62.75, -32.5], [-62.95999999999998, -33.0], [-62.81999999999999, -33.32], [-62.47000000000003, -33.47], [-62.31999999999999, -33.82], [-61.97000000000003, -33.97], [-61.81999999999999, -34.32], [-61.47000000000003, -34.47], [-61.31999999999999, -34.82], [-60.97000000000003, -34.97], [-60.75, -35.5], [-60.85000000000002, -35.75], [-60.75, -36.0], [-60.97000000000003, -36.53], [-61.5, -36.75], [-62.0, -36.54], [-62.5, -36.75], [-62.75, -36.65], [-63.0, -36.75], [-63.52999999999997, -36.53], [-63.68000000000001, -36.18], [-63.75, -36.15], [-64.0, -36.25], [-64.25, -36.15], [-64.5, -36.25], [-65.02999999999997, -36.03], [-65.18, -35.68], [-65.52999999999997, -35.53], [-65.75, -35.0], [-65.64999999999998, -34.75], [-65.75, -34.5]]]]}, "2022-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, -34.5], [-65.64999999999998, -34.25], [-65.75, -34.0], [-65.64999999999998, -33.75], [-65.75, -33.5], [-65.54000000000002, -33.0], [-65.75, -32.5], [-65.64999999999998, -32.25], [-65.75, -32.0], [-65.52999999999997, -31.47], [-65.0, -31.25], [-64.75, -31.35], [-64.5, -31.25], [-63.97000000000003, -31.47], [-63.81999999999999, -31.82], [-63.75, -31.85], [-63.5, -31.75], [-62.97000000000003, -31.97], [-62.75, -32.5], 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-4.902131180536871}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.977652117991624, 15.60908557743204, 17.406282109289975]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.602384735752423, 13.22401999550408, 14.975837202323703]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.8313446005651626, -6.298763517532959, -4.57628542351249]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.5851155292454, -6.9082185645108325, -5.846042708226491]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5250705163019638, -2.566707161001821, -1.8244696880988944]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7705067444546452, -2.842475587428446, -2.425184518824733]}}