{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:13.272091", "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": "2017-Feb-04_to_2017-Feb-06_292.5_-35.5"}, "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": 2017020000112}, "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 04 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 06 2017"}, "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": 70757.60535855134}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": -35.5}, "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": 292.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "292.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 292.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 294.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.15, -35.75], [-68.25, -35.5], [-68.15, -35.25], [-68.25, -35.0], [-68.15, -34.75], [-68.25, -34.5], [-68.15, -34.25], [-68.25, -34.0], [-68.15, -33.75], [-68.25, -33.5], [-68.03, -32.97], [-67.68, -32.82], [-67.53, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.5, -32.25], [-65.97, -32.47], [-65.75, -33.0], [-65.85, -33.25], [-65.75, -33.5], [-65.85, -33.75], [-65.75, -34.0], [-65.85, -34.25], [-65.75, -34.5], [-65.85, -34.75], [-65.75, -35.0], [-65.85, -35.25], [-65.82, -35.32], [-65.47, -35.47], [-65.32, -35.82], [-64.97, -35.97], [-64.75, -36.5], [-64.97, -37.03], [-65.5, -37.25], [-65.75, -37.15], [-65.82, -37.18], [-65.97, -37.53], [-66.5, -37.75], [-66.75, -37.65], [-67.0, -37.75], [-67.53, -37.53], [-67.68, -37.18], [-68.03, -37.03], [-68.25, -36.5], [-68.15, -36.25], [-68.25, -36.0], [-68.15, -35.75]]]]}, "2017-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.15, -35.75], [-68.25, -35.5], [-68.15, -35.25], [-68.25, -35.0], [-68.15, -34.75], [-68.25, -34.5], [-68.15, -34.25], [-68.25, -34.0], [-68.15, -33.75], [-68.25, -33.5], [-68.03, -32.97], [-67.68, -32.82], [-67.53, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.5, -32.25], [-65.97, -32.47], [-65.75, -33.0], [-65.85, -33.25], [-65.75, -33.5], [-65.85, -33.75], [-65.75, -34.0], [-65.85, -34.25], [-65.75, -34.5], [-65.85, -34.75], [-65.75, -35.0], [-65.85, -35.25], [-65.82, -35.32], [-65.47, -35.47], [-65.32, -35.82], [-64.97, -35.97], [-64.75, -36.5], [-64.97, -37.03], [-65.5, -37.25], [-65.75, -37.15], [-65.82, -37.18], [-65.97, -37.53], [-66.5, -37.75], [-66.75, -37.65], [-67.0, -37.75], [-67.53, -37.53], [-67.68, -37.18], [-68.03, -37.03], [-68.25, -36.5], [-68.15, -36.25], [-68.25, -36.0], [-68.15, -35.75]]]]}, "2017-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.15, -35.75], [-68.25, -35.5], [-68.15, -35.25], [-68.25, -35.0], [-68.15, -34.75], [-68.25, -34.5], [-68.15, -34.25], [-68.25, -34.0], [-68.15, -33.75], [-68.25, -33.5], [-68.03, -32.97], [-67.68, -32.82], [-67.53, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.5, -32.25], [-65.97, -32.47], [-65.75, -33.0], [-65.85, -33.25], [-65.75, -33.5], [-65.85, -33.75], [-65.75, -34.0], [-65.85, -34.25], [-65.75, -34.5], [-65.85, -34.75], [-65.75, -35.0], [-65.85, -35.25], [-65.82, -35.32], [-65.47, -35.47], [-65.32, -35.82], [-64.97, -35.97], [-64.75, -36.5], [-64.97, -37.03], [-65.5, -37.25], [-65.75, -37.15], [-65.82, -37.18], [-65.97, -37.53], [-66.5, -37.75], [-66.75, -37.65], [-67.0, -37.75], [-67.53, -37.53], [-67.68, -37.18], [-68.03, -37.03], [-68.25, -36.5], [-68.15, -36.25], [-68.25, -36.0], [-68.15, -35.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.413049280204746}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.039501850543211}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.244066944050246, 17.160774946257106, 19.427840442840022]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.172660540457912, 15.91990099995445, 18.446927414967604]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.46430501127852, -7.499342434656613, -5.154858105694501]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.13897015450533, -8.413049280204746, -5.7481188877728755]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.511541561837026, -2.1242867965179557, -1.5158582376983796]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6293457352099476, -2.29870408182573, -1.6603028096763457]}}