{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:32.398006", "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-Oct-11_to_2022-Oct-24_287.5_-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": 2022100000512}, "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": "October 11 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 24 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 14}, "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": 106505.73789604109}, "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": ["Chile"]}, "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": ["Pacific 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": -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": 287.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -40.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-76.25, -36.0], [-76.15, -35.75], [-76.25, -35.5], [-76.03, -34.97], [-75.5, -34.75], [-75.25, -34.85], [-75.0, -34.75], [-74.75, -34.85], [-74.68, -34.82], [-74.53, -34.47], [-74.0, -34.25], [-73.47, -34.47], [-73.3, -34.88], [-73.18, -34.82], [-73.15, -34.75], [-73.25, -34.5], [-73.15, -34.25], [-73.25, -34.0], [-73.15, -33.75], [-73.25, -33.5], [-73.03, -32.97], [-72.68, -32.82], [-72.53, -32.47], [-72.0, -32.25], [-71.47, -32.47], [-71.25, -33.0], [-71.35, -33.25], [-71.25, -33.5], [-71.35, -33.75], [-71.25, -34.0], [-71.47, -34.53], [-71.82, -34.68], [-71.85, -34.75], [-71.75, -35.0], [-71.97, -35.53], [-72.32, -35.68], [-72.47, -36.03], [-72.82, -36.18], [-72.85, -36.25], [-72.75, -36.5], [-72.85, -36.75], [-72.75, -37.0], [-72.97, -37.53], [-73.32, -37.68], [-73.35, -37.75], [-73.25, -38.0], [-73.35, -38.25], [-73.25, -38.5], [-73.46, -39.0], [-73.25, -39.5], [-73.35, -39.75], [-73.25, -40.0], [-73.47, -40.53], [-74.0, -40.75], [-74.25, -40.65], [-74.5, -40.75], [-75.03, -40.53], [-75.25, -40.0], [-75.15, -39.75], [-75.18, -39.68], [-75.53, -39.53], [-75.75, -39.0], [-75.65, -38.75], [-75.75, -38.5], [-75.65, -38.25], [-75.68, -38.18], [-76.03, -38.03], [-76.25, -37.5], [-76.15, -37.25], [-76.25, -37.0], [-76.15, -36.75], [-76.25, -36.5], [-76.15, -36.25], [-76.25, -36.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.02999999999997, -33.47], [-72.5, -33.25], [-71.97000000000003, -33.47], [-71.75, -34.0], [-71.97000000000003, -34.53], [-72.5, -34.75], [-73.02999999999997, -34.53], [-73.25, -34.0], [-73.02999999999997, -33.47]]]]}, "2022-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.02999999999997, -33.47], [-72.5, -33.25], [-71.97000000000003, -33.47], [-71.75, -34.0], [-71.97000000000003, -34.53], [-72.5, -34.75], [-73.02999999999997, -34.53], [-73.25, -34.0], [-73.02999999999997, -33.47]]]]}, "2022-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.02999999999997, -33.47], [-72.5, -33.25], [-71.97000000000003, -33.47], [-71.75, -34.0], [-71.97000000000003, -34.53], [-72.5, -34.75], [-73.02999999999997, -34.53], [-73.25, -34.0], [-73.02999999999997, -33.47]]]]}, "2022-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.02999999999997, -33.47], [-72.5, -33.25], [-71.97000000000003, -33.47], [-71.75, -34.0], [-71.97000000000003, -34.53], [-72.5, -34.75], [-73.02999999999997, -34.53], [-73.25, -34.0], [-73.02999999999997, -33.47]]]]}, "2022-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.52999999999997, -32.97], [-72.0, -32.75], [-71.47000000000003, -32.97], [-71.25, -33.5], [-71.47000000000003, -34.03], [-72.0, -34.25], [-72.52999999999997, -34.03], [-72.75, -33.5], [-72.52999999999997, -32.97]]]]}, "2022-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.52999999999997, -32.97], [-72.0, -32.75], [-71.47000000000003, -32.97], [-71.25, -33.5], [-71.47000000000003, -34.03], [-72.0, -34.25], [-72.52999999999997, -34.03], [-72.75, -33.5], [-72.52999999999997, -32.97]]]]}, "2022-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.75, -33.5], [-72.52999999999997, -32.97], [-72.0, -32.75], [-71.47000000000003, -32.97], [-71.25, -33.5], [-71.35000000000002, -33.75], [-71.25, -34.0], [-71.47000000000003, -34.53], [-71.87, -34.7], [-71.75, -35.0], [-71.97000000000003, -35.53], [-72.5, -35.75], [-73.02999999999997, -35.53], [-73.25, -35.0], [-73.02999999999997, -34.47], [-72.62, -34.3], [-72.75, -34.0], [-72.64999999999998, -33.75], [-72.75, -33.5]]]]}, "2022-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.75, -34.0], [-72.52999999999997, -33.47], [-72.0, -33.25], [-71.47000000000003, -33.47], [-71.25, -34.0], [-71.47000000000003, -34.53], [-71.87, -34.7], [-71.75, -35.0], [-71.97000000000003, -35.53], [-72.5, -35.75], [-73.02999999999997, -35.53], [-73.25, -35.0], [-73.02999999999997, -34.47], [-72.62, -34.3], [-72.75, -34.0]]]]}, "2022-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.25, -34.5], [-73.14999999999998, -34.25], [-73.25, -34.0], [-73.14999999999998, -33.75], [-73.25, -33.5], [-73.02999999999997, -32.97], [-72.5, -32.75], [-71.97000000000003, -32.97], [-71.82, -33.32], [-71.47000000000003, -33.47], [-71.25, -34.0], [-71.47000000000003, -34.53], [-71.82, -34.68], [-71.85000000000002, -34.75], [-71.75, -35.0], [-71.97000000000003, -35.53], [-72.5, -35.75], [-73.02999999999997, -35.53], [-73.25, -35.0], [-73.14999999999998, -34.75], [-73.25, -34.5]]]]}, "2022-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.0, -36.25], [-75.52999999999997, -36.03], [-75.75, -35.5], [-75.52999999999997, -34.97], [-75.0, -34.75], [-74.75, -34.85], [-74.68, -34.82], [-74.52999999999997, -34.47], [-74.0, -34.25], [-73.47000000000003, -34.47], [-73.30000000000001, -34.88], [-73.18, -34.82], [-73.14999999999998, -34.75], [-73.25, -34.5], [-73.14999999999998, -34.25], [-73.25, -34.0], [-73.14999999999998, -33.75], [-73.25, -33.5], [-73.02999999999997, -32.97], [-72.5, -32.75], [-71.97000000000003, -32.97], [-71.75, -33.5], [-71.85000000000002, -33.75], [-71.75, -34.0], [-71.85000000000002, -34.25], [-71.75, -34.5], [-71.85000000000002, -34.75], [-71.75, -35.0], [-71.97000000000003, -35.53], [-72.32, -35.68], [-72.47000000000003, -36.03], [-72.82, -36.18], [-72.85000000000002, -36.25], [-72.75, -36.5], [-72.85000000000002, -36.75], [-72.75, -37.0], [-72.97000000000003, -37.53], [-73.5, -37.75], [-74.02999999999997, -37.53], [-74.25, -37.0], [-74.14999999999998, -36.75], [-74.18, -36.68], [-74.52999999999997, -36.53], [-74.68, -36.18], [-74.75, -36.15], [-75.0, -36.25]]]]}, "2022-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.25, -37.0], [-76.14999999999998, -36.75], [-76.25, -36.5], [-76.14999999999998, -36.25], [-76.25, -36.0], [-76.14999999999998, -35.75], [-76.25, -35.5], [-76.02999999999997, -34.97], [-75.5, -34.75], [-75.25, -34.85], [-75.0, -34.75], [-74.75, -34.85], [-74.68, -34.82], [-74.52999999999997, -34.47], [-74.0, -34.25], [-73.47000000000003, -34.47], [-73.30000000000001, -34.88], [-73.12, -34.8], [-73.25, -34.5], [-73.14999999999998, -34.25], [-73.25, -34.0], [-73.14999999999998, -33.75], [-73.25, -33.5], [-73.02999999999997, -32.97], [-72.5, -32.75], [-71.97000000000003, -32.97], [-71.75, -33.5], [-71.85000000000002, -33.75], [-71.75, -34.0], [-71.85000000000002, -34.25], [-71.75, -34.5], [-71.97000000000003, -35.03], [-72.37, -35.2], [-72.25, -35.5], [-72.47000000000003, -36.03], [-72.82, -36.18], [-72.85000000000002, -36.25], [-72.75, -36.5], [-72.85000000000002, -36.75], [-72.75, -37.0], [-72.97000000000003, -37.53], [-73.32, -37.68], [-73.35000000000002, -37.75], [-73.25, -38.0], [-73.35000000000002, -38.25], [-73.25, -38.5], [-73.45999999999998, -39.0], [-73.25, -39.5], [-73.35000000000002, -39.75], [-73.25, -40.0], [-73.47000000000003, -40.53], [-74.0, -40.75], [-74.25, -40.65], [-74.5, -40.75], [-75.02999999999997, -40.53], [-75.25, -40.0], [-75.14999999999998, -39.75], [-75.18, -39.68], [-75.52999999999997, -39.53], [-75.75, -39.0], [-75.64999999999998, -38.75], [-75.75, -38.5], [-75.64999999999998, -38.25], [-75.68, -38.18], [-76.02999999999997, -38.03], [-76.25, -37.5], [-76.14999999999998, -37.25], [-76.25, -37.0]]]]}, "2022-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.25, -37.0], [-76.14999999999998, -36.75], [-76.25, -36.5], [-76.14999999999998, -36.25], [-76.25, -36.0], [-76.14999999999998, -35.75], [-76.25, -35.5], [-76.02999999999997, -34.97], [-75.5, -34.75], [-75.25, -34.85], [-75.0, -34.75], [-74.75, -34.85], [-74.68, -34.82], [-74.52999999999997, -34.47], [-74.0, -34.25], [-73.47000000000003, -34.47], [-73.30000000000001, -34.88], [-73.18, -34.82], [-73.14999999999998, -34.75], [-73.25, -34.5], [-73.14999999999998, -34.25], [-73.25, -34.0], [-73.02999999999997, -33.47], [-72.68, -33.32], [-72.64999999999998, -33.25], [-72.75, -33.0], [-72.52999999999997, -32.47], [-72.0, -32.25], [-71.47000000000003, -32.47], [-71.25, -33.0], [-71.35000000000002, -33.25], [-71.25, -33.5], [-71.47000000000003, -34.03], [-71.82, -34.18], [-71.85000000000002, -34.25], [-71.75, -34.5], [-71.85000000000002, -34.75], [-71.75, -35.0], [-71.97000000000003, -35.53], [-72.32, -35.68], [-72.47000000000003, -36.03], [-72.82, -36.18], [-72.85000000000002, -36.25], [-72.75, -36.5], [-72.85000000000002, -36.75], [-72.75, -37.0], [-72.97000000000003, -37.53], [-73.32, -37.68], [-73.35000000000002, -37.75], [-73.25, -38.0], [-73.35000000000002, -38.25], [-73.25, -38.5], [-73.45999999999998, -39.0], [-73.25, -39.5], [-73.35000000000002, -39.75], [-73.25, -40.0], [-73.47000000000003, -40.53], [-74.0, -40.75], [-74.25, -40.65], [-74.5, -40.75], [-75.02999999999997, -40.53], [-75.25, -40.0], [-75.14999999999998, -39.75], [-75.18, -39.68], [-75.52999999999997, -39.53], [-75.75, -39.0], [-75.64999999999998, -38.75], [-75.75, -38.5], [-75.64999999999998, -38.25], [-75.68, -38.18], [-76.02999999999997, -38.03], [-76.25, -37.5], [-76.14999999999998, -37.25], [-76.25, -37.0]]]]}, "2022-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.25, -37.0], [-76.14999999999998, -36.75], [-76.25, -36.5], [-76.14999999999998, -36.25], [-76.25, -36.0], [-76.14999999999998, -35.75], [-76.25, -35.5], [-76.02999999999997, -34.97], [-75.5, -34.75], [-75.25, -34.85], [-75.0, -34.75], [-74.75, -34.85], [-74.68, -34.82], [-74.52999999999997, -34.47], [-74.0, -34.25], [-73.47000000000003, -34.47], [-73.30000000000001, -34.88], [-73.18, -34.82], [-73.14999999999998, -34.75], [-73.25, -34.5], [-73.14999999999998, -34.25], [-73.25, -34.0], [-73.02999999999997, -33.47], [-72.68, -33.32], [-72.64999999999998, -33.25], [-72.75, -33.0], [-72.52999999999997, -32.47], [-72.0, -32.25], [-71.47000000000003, -32.47], [-71.25, -33.0], [-71.35000000000002, -33.25], [-71.25, -33.5], [-71.47000000000003, -34.03], [-71.82, -34.18], [-71.85000000000002, -34.25], [-71.75, -34.5], [-71.85000000000002, -34.75], [-71.75, -35.0], [-71.97000000000003, -35.53], [-72.32, -35.68], [-72.47000000000003, -36.03], [-72.82, -36.18], [-72.85000000000002, -36.25], [-72.75, -36.5], [-72.85000000000002, -36.75], [-72.75, -37.0], [-72.97000000000003, -37.53], [-73.32, -37.68], [-73.35000000000002, -37.75], [-73.25, -38.0], [-73.35000000000002, -38.25], [-73.25, -38.5], [-73.45999999999998, -39.0], [-73.25, -39.5], [-73.35000000000002, -39.75], [-73.25, -40.0], [-73.47000000000003, -40.53], [-74.0, -40.75], [-74.25, -40.65], [-74.5, -40.75], [-75.02999999999997, -40.53], [-75.25, -40.0], [-75.14999999999998, -39.75], [-75.18, -39.68], [-75.52999999999997, -39.53], [-75.75, -39.0], [-75.64999999999998, -38.75], [-75.75, -38.5], [-75.64999999999998, -38.25], [-75.68, -38.18], [-76.02999999999997, -38.03], [-76.25, -37.5], [-76.14999999999998, -37.25], [-76.25, -37.0]]]]}, "2022-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.25, -34.5], [-73.14999999999998, -34.25], [-73.25, -34.0], [-73.02999999999997, -33.47], [-72.68, -33.32], [-72.64999999999998, -33.25], [-72.75, -33.0], [-72.52999999999997, -32.47], [-72.0, -32.25], [-71.47000000000003, -32.47], [-71.25, -33.0], [-71.35000000000002, -33.25], [-71.25, -33.5], [-71.47000000000003, -34.03], [-71.82, -34.18], [-71.85000000000002, -34.25], [-71.75, -34.5], [-71.85000000000002, -34.75], [-71.75, -35.0], [-71.97000000000003, -35.53], [-72.5, -35.75], [-73.02999999999997, -35.53], [-73.25, -35.0], [-73.14999999999998, -34.75], [-73.25, -34.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.1998498466311958}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.4003410473070161}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.598821326127165, 11.900767328680502, 11.430651752162873, 11.848076726273575, 11.330661084482983, 10.289831879302199, 11.12490959669833, 11.297330861923115, 11.55264492211586, 11.376657803923251, 10.812593283089711, 10.80631237122941, 10.652668174550627, 11.642628930721912]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.598821326127165, 11.900767328680502, 11.430651752162873, 11.848076726273575, 11.330661084482983, 10.289831879302199, 10.703308854385284, 11.111243446218225, 10.640824177467778, 10.945123794825975, 9.43425493618571, 9.664453648718336, 9.475177464568162, 11.273263252466336]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.120823344992914, -0.8322029386213785, -1.3303998551160703, -0.9460160174971861, -1.1567732728279907, -2.1998498466311958, -1.297223741141882, -1.1295812561851335, -1.179757856876813, -1.1404805930627475, -1.3279993874336604, -1.4138664114544477, -1.617400859124477, -1.2514263338024307]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.120823344992914, -0.8322029386213785, -1.3303998551160703, -0.9460160174971861, -1.1567732728279907, -2.1998498466311958, -1.5618805896949652, -1.2002799058722644, -1.7560913296506442, -1.3590287338047347, -1.7019043195959966, -2.121591870575685, -2.1979261061521242, -1.4832079247403271]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5240899397165593, -1.0972301436032879, -1.8018621045875234, -1.3082137574750308, -1.5513625811169702, -2.9868371374378433, -1.784740374846665, -1.59125980372104, -1.7506521834126088, -1.658687969937696, -1.6417808206881666, -1.7097438488901064, -1.985463585627861, -1.6745119209214767]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5240899397165593, -1.0972301436032879, -1.8018621045875234, -1.3082137574750308, -1.5513625811169702, -2.9868371374378433, -2.007846682393505, -1.6045434293096899, -2.290939180546839, -2.0590292624193474, -1.907553851091934, -2.4518790701486166, -2.8737786629543325, -1.867235061020868]}}