{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:36.504861", "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": "2024-Jul-02_to_2024-Jul-05_285.0_-39.0"}, "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": 2024070000083}, "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": "July 02 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 05 2024"}, "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": "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": 85439.26151543495}, "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": -39.0}, "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": 285.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "285.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 283.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 286.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -44.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -38.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-77.53, -42.47], [-77.18, -42.32], [-77.15, -42.25], [-77.25, -42.0], [-77.03, -41.47], [-76.68, -41.32], [-76.65, -41.25], [-76.75, -41.0], [-76.53, -40.47], [-76.0, -40.25], [-75.75, -40.35], [-75.68, -40.32], [-75.65, -40.25], [-75.75, -40.0], [-75.54, -39.5], [-75.68, -39.18], [-76.03, -39.03], [-76.25, -38.5], [-76.03, -37.97], [-75.68, -37.82], [-75.53, -37.47], [-75.0, -37.25], [-74.47, -37.47], [-74.32, -37.82], [-73.97, -37.97], [-73.75, -38.5], [-73.85, -38.75], [-73.75, -39.0], [-73.85, -39.25], [-73.75, -39.5], [-73.85, -39.75], [-73.75, -40.0], [-73.97, -40.53], [-74.32, -40.68], [-74.35, -40.75], [-74.25, -41.0], [-74.35, -41.25], [-74.25, -41.5], [-74.35, -41.75], [-74.25, -42.0], [-74.35, -42.25], [-74.25, -42.5], [-74.35, -42.75], [-74.32, -42.82], [-74.25, -42.85], [-74.18, -42.82], [-74.03, -42.47], [-73.5, -42.25], [-72.97, -42.47], [-72.75, -43.0], [-72.85, -43.25], [-72.75, -43.5], [-72.97, -44.03], [-73.32, -44.18], [-73.47, -44.53], [-74.0, -44.75], [-74.53, -44.53], [-74.68, -44.18], [-75.03, -44.03], [-75.18, -43.68], [-75.25, -43.65], [-75.5, -43.75], [-75.75, -43.65], [-75.82, -43.68], [-75.97, -44.03], [-76.32, -44.18], [-76.47, -44.53], [-77.0, -44.75], [-77.53, -44.53], [-77.75, -44.0], [-77.65, -43.75], [-77.75, -43.5], [-77.65, -43.25], [-77.75, -43.0], [-77.53, -42.47]]]]}}, "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": {"2024-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.75, -43.5], [-77.64999999999998, -43.25], [-77.75, -43.0], [-77.52999999999997, -42.47], [-77.0, -42.25], [-76.75, -42.35], [-76.5, -42.25], [-76.25, -42.35], [-76.0, -42.25], [-75.47000000000003, -42.47], [-75.25, -43.0], [-75.47000000000003, -43.53], [-75.82, -43.68], [-75.97000000000003, -44.03], [-76.32, -44.18], [-76.47000000000003, -44.53], [-77.0, -44.75], [-77.52999999999997, -44.53], [-77.75, -44.0], [-77.64999999999998, -43.75], [-77.75, -43.5]]]]}, "2024-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.75, -43.5], [-77.64999999999998, -43.25], [-77.75, -43.0], [-77.52999999999997, -42.47], [-77.18, -42.32], [-77.14999999999998, -42.25], [-77.25, -42.0], [-77.02999999999997, -41.47], [-76.68, -41.32], [-76.64999999999998, -41.25], [-76.75, -41.0], [-76.52999999999997, -40.47], [-76.0, -40.25], [-75.75, -40.35], [-75.68, -40.32], [-75.64999999999998, -40.25], [-75.75, -40.0], [-75.54000000000002, -39.5], [-75.68, -39.18], [-76.02999999999997, -39.03], [-76.25, -38.5], [-76.02999999999997, -37.97], [-75.68, -37.82], [-75.52999999999997, -37.47], [-75.0, -37.25], [-74.47000000000003, -37.47], [-74.32, -37.82], [-73.97000000000003, -37.97], [-73.75, -38.5], [-73.85000000000002, -38.75], [-73.75, -39.0], [-73.85000000000002, -39.25], [-73.75, -39.5], [-73.85000000000002, -39.75], [-73.75, -40.0], [-73.97000000000003, -40.53], [-74.32, -40.68], [-74.35000000000002, -40.75], [-74.25, -41.0], 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"description": "The daily evolution of mean t2m anomalies.", "value": [-1.4230270156166682, -1.8658048398776705, -2.5790139094397078, -1.7672897058273684]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4535186257924124, -2.5038851619897855, -2.8122196029341353, -2.053931836976119]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.1745657093557103, -1.5668534378491523, -2.166167713826142, -1.5090197161395635]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2225223795267106, -2.0317869530470123, -2.4677986830761403, -1.7488434039803264]}}