{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:21.785573", "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-06_to_2022-Feb-08_303.5_-32.0"}, "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": 2022020000343}, "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 06 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 08 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": 127956.21859726588}, "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", "Brazil", "Uruguay"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America", "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": -32.0}, "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": 303.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 301.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-59.18, -31.32], [-59.03, -30.97], [-58.5, -30.75], [-57.97, -30.97], [-57.82, -31.32], [-57.75, -31.35], [-57.68, -31.32], [-57.53, -30.97], [-57.18, -30.82], [-57.03, -30.47], [-56.68, -30.32], [-56.65, -30.25], [-56.75, -30.0], [-56.53, -29.47], [-56.0, -29.25], [-55.47, -29.47], [-55.32, -29.82], [-54.97, -29.97], [-54.82, -30.32], [-54.47, -30.47], [-54.25, -31.0], [-54.35, -31.25], [-54.25, -31.5], [-54.35, -31.75], [-54.25, -32.0], [-54.37, -32.3], [-54.25, -32.35], [-54.0, -32.25], [-53.47, -32.47], [-53.25, -33.0], [-53.47, -33.53], [-54.0, -33.75], [-54.25, -33.65], [-54.32, -33.68], [-54.47, -34.03], [-54.82, -34.18], [-54.97, -34.53], [-55.5, -34.75], [-55.75, -34.65], [-56.0, -34.75], [-56.53, -34.53], [-56.68, -34.18], [-56.75, -34.15], [-57.0, -34.25], [-57.25, -34.15], [-57.5, -34.25], [-57.75, -34.15], [-58.0, -34.25], [-58.53, -34.03], [-58.68, -33.68], [-59.03, -33.53], [-59.18, -33.18], [-59.53, -33.03], [-59.75, -32.5], [-59.65, -32.25], [-59.75, -32.0], [-59.53, -31.47], [-59.18, -31.32]]]]}}, "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": {"2022-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.75, -32.0], [-59.52999999999997, -31.47], [-59.18000000000001, -31.32], [-59.02999999999997, -30.97], [-58.5, -30.75], [-57.97000000000003, -30.97], [-57.81999999999999, -31.32], [-57.75, -31.35], [-57.68000000000001, -31.32], [-57.52999999999997, -30.97], [-57.18000000000001, -30.82], [-57.02999999999997, -30.47], [-56.68000000000001, -30.32], [-56.64999999999998, -30.25], [-56.75, -30.0], [-56.52999999999997, -29.47], [-56.0, -29.25], [-55.47000000000003, -29.47], [-55.31999999999999, -29.82], [-54.97000000000003, -29.97], [-54.81999999999999, -30.32], [-54.47000000000003, -30.47], [-54.25, -31.0], [-54.35000000000002, -31.25], [-54.25, -31.5], [-54.35000000000002, -31.75], [-54.25, -32.0], [-54.370000000000005, -32.3], [-54.25, -32.35], [-54.0, -32.25], [-53.47000000000003, -32.47], [-53.25, -33.0], [-53.47000000000003, -33.53], [-54.0, -33.75], [-54.25, -33.65], [-54.31999999999999, -33.68], [-54.47000000000003, -34.03], [-54.81999999999999, -34.18], [-54.97000000000003, -34.53], [-55.5, -34.75], [-55.75, -34.65], [-56.0, -34.75], [-56.52999999999997, -34.53], [-56.68000000000001, -34.18], [-56.75, -34.15], [-57.0, -34.25], [-57.25, -34.15], [-57.5, -34.25], [-57.75, -34.15], [-58.0, -34.25], [-58.52999999999997, -34.03], [-58.68000000000001, -33.68], [-59.02999999999997, -33.53], [-59.18000000000001, -33.18], [-59.52999999999997, -33.03], [-59.75, -32.5], [-59.64999999999998, -32.25], [-59.75, -32.0]]]]}, "2022-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.75, -32.0], [-59.52999999999997, -31.47], [-59.18000000000001, -31.32], [-59.02999999999997, -30.97], [-58.5, -30.75], [-57.97000000000003, -30.97], [-57.81999999999999, -31.32], [-57.75, -31.35], [-57.68000000000001, -31.32], [-57.52999999999997, -30.97], [-57.18000000000001, -30.82], [-57.02999999999997, -30.47], [-56.68000000000001, -30.32], [-56.64999999999998, -30.25], [-56.75, -30.0], [-56.52999999999997, -29.47], [-56.0, -29.25], [-55.47000000000003, -29.47], [-55.31999999999999, -29.82], [-54.97000000000003, -29.97], [-54.81999999999999, -30.32], [-54.47000000000003, -30.47], [-54.25, -31.0], [-54.35000000000002, -31.25], [-54.25, -31.5], [-54.35000000000002, -31.75], [-54.25, -32.0], [-54.370000000000005, -32.3], [-54.25, -32.35], [-54.0, -32.25], [-53.47000000000003, -32.47], [-53.25, -33.0], [-53.47000000000003, -33.53], [-54.0, -33.75], [-54.25, -33.65], [-54.31999999999999, -33.68], [-54.47000000000003, -34.03], [-54.81999999999999, -34.18], [-54.97000000000003, -34.53], [-55.5, -34.75], [-55.75, -34.65], [-56.0, -34.75], [-56.52999999999997, -34.53], [-56.68000000000001, -34.18], [-56.75, -34.15], [-57.0, -34.25], [-57.25, -34.15], [-57.5, -34.25], [-57.75, -34.15], [-58.0, -34.25], 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-4.3518605056107615}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.360878373307003, 19.234847367627424, 19.79341808980871]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.711339933236218, 18.27695583369524, 18.493820032759288]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.529181718511283, -4.624974153404053, -3.901425644916939]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.319692297988411, -5.435283747802714, -4.482687030490922]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7978435169187073, -1.871674582975794, -1.5402304157015387]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0727407405604295, -2.1917487642959834, -1.7590198398898307]}}