{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:28.722382", "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-05_to_2022-Oct-07_186.5_-46.5"}, "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": 2022100000260}, "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 05 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 07 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": 185108.4751083714}, "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": ["New Zealand"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": -46.5}, "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": 186.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "186.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 179.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 189.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -50.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -39.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-178.97, -39.47], [-178.82, -39.82], [-178.75, -39.85], [-178.5, -39.75], [-177.97, -39.97], [-177.75, -40.5], 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[-172.68, -49.18], [-173.03, -49.03], [-173.18, -48.68], [-173.53, -48.53], [-173.68, -48.18], [-173.75, -48.15], [-174.0, -48.25], [-174.53, -48.03], [-174.68, -47.68], [-174.75, -47.65], [-175.0, -47.75], [-175.25, -47.65], [-175.5, -47.75], [-175.75, -47.65], [-176.0, -47.75], [-176.53, -47.53], [-176.75, -47.0], [-176.65, -46.75], [-176.75, -46.5], [-176.65, -46.25], [-176.75, -46.0], [-176.65, -45.75], [-176.75, -45.5], [-176.65, -45.25], [-176.68, -45.18], [-176.75, -45.15], [-177.0, -45.25], [-177.53, -45.03], [-177.68, -44.68], [-178.03, -44.53], [-178.18, -44.18], [-178.25, -44.15], [-178.5, -44.25], [-179.03, -44.03], [-179.25, -43.5], [-179.15, -43.25], [-179.18, -43.18], [-179.53, -43.03], [-179.68, -42.68], [-180.0, -42.54], [-180.0, -38.75], [-179.47, -38.97], [-179.32, -39.32], [-178.97, -39.47]]], [[[178.85, -39.75], [178.75, -39.5], [178.97, -38.97], [179.5, -38.75], [179.75, -38.85], [180.0, -38.75], [180.0, -42.54], [179.97, -42.53], [179.82, -42.18], [179.47, 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[4.455676316262441, 2.576352856065512, 5.739307461640919]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.4637286016091884, -5.13300994638879, -2.1343288035209813]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.1962102309610145, -6.0111975503268695, -2.73030196192866]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7418909878132733, -3.6495619073929633, -1.581412313628118]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3050446231525776, -4.300891364118802, -2.1172321235018523]}}