{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:39.663625", "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": "2021-Mar-26_to_2021-Mar-28_292.0_-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": 2021030001056}, "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": "March 26 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 28 2021"}, "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": 67291.07920000513}, "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": -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": 292.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "292.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 291.75}, "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": -35.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -31.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.65, -32.75], [-68.75, -32.5], [-68.65, -32.25], [-68.75, -32.0], [-68.53, -31.47], [-68.0, -31.25], [-67.75, -31.35], [-67.68, -31.32], [-67.53, -30.97], [-67.0, -30.75], [-66.75, -30.85], [-66.5, -30.75], [-65.97, -30.97], [-65.75, -31.5], [-65.97, -32.03], [-66.32, -32.18], [-66.35, -32.25], [-66.32, -32.32], [-66.25, -32.35], [-66.0, -32.25], [-65.75, -32.35], [-65.5, -32.25], [-64.97, -32.47], [-64.75, -33.0], [-64.85, -33.25], [-64.75, -33.5], [-64.97, -34.03], [-65.5, -34.25], [-65.75, -34.15], [-65.82, -34.18], [-65.97, -34.53], [-66.32, -34.68], [-66.35, -34.75], [-66.25, -35.0], [-66.47, -35.53], [-67.0, -35.75], [-67.53, -35.53], [-67.68, -35.18], [-68.03, -35.03], [-68.25, -34.5], [-68.15, -34.25], [-68.18, -34.18], [-68.53, -34.03], [-68.75, -33.5], [-68.65, -33.25], [-68.75, -33.0], [-68.65, -32.75]]]]}, "2021-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.65, -32.75], [-68.75, -32.5], [-68.65, -32.25], [-68.75, -32.0], [-68.53, -31.47], [-68.0, -31.25], [-67.75, -31.35], [-67.68, -31.32], [-67.53, -30.97], [-67.0, -30.75], [-66.75, -30.85], [-66.5, -30.75], [-65.97, -30.97], [-65.75, -31.5], [-65.97, -32.03], [-66.32, -32.18], [-66.35, -32.25], [-66.32, -32.32], [-66.25, -32.35], [-66.0, -32.25], [-65.75, -32.35], [-65.5, -32.25], [-64.97, -32.47], [-64.75, -33.0], [-64.85, -33.25], [-64.75, -33.5], [-64.97, -34.03], [-65.5, -34.25], [-65.75, -34.15], [-65.82, -34.18], [-65.97, -34.53], [-66.32, -34.68], [-66.35, -34.75], [-66.25, -35.0], [-66.47, -35.53], [-67.0, -35.75], [-67.53, -35.53], [-67.68, -35.18], [-68.03, -35.03], [-68.25, -34.5], [-68.15, -34.25], [-68.18, -34.18], [-68.53, -34.03], [-68.75, -33.5], [-68.65, -33.25], [-68.75, -33.0], [-68.65, -32.75]]]]}, "2021-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.65, -32.75], [-68.75, -32.5], [-68.65, -32.25], [-68.75, -32.0], [-68.53, -31.47], [-68.0, -31.25], [-67.75, -31.35], [-67.68, -31.32], [-67.53, -30.97], [-67.0, -30.75], [-66.75, -30.85], [-66.5, -30.75], [-65.97, -30.97], [-65.75, -31.5], [-65.97, -32.03], [-66.32, -32.18], [-66.35, -32.25], [-66.32, -32.32], [-66.25, -32.35], [-66.0, -32.25], [-65.75, -32.35], [-65.5, -32.25], [-64.97, -32.47], [-64.75, -33.0], [-64.85, -33.25], [-64.75, -33.5], [-64.97, -34.03], [-65.5, -34.25], [-65.75, -34.15], [-65.82, -34.18], [-65.97, -34.53], [-66.32, -34.68], [-66.35, -34.75], [-66.25, -35.0], [-66.47, -35.53], [-67.0, -35.75], [-67.53, -35.53], [-67.68, -35.18], [-68.03, -35.03], [-68.25, -34.5], [-68.15, -34.25], [-68.18, -34.18], [-68.53, -34.03], [-68.75, -33.5], [-68.65, -33.25], [-68.75, -33.0], [-68.65, -32.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.195127110381236}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.421427107557544}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.50243954193644, 14.890407162456654, 14.956595936249641]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.45139402047704, 10.284020267436347, 11.213174893739563]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.893422823230286, -5.3192227784656705, -5.051635720976676]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.195127110381236, -5.939700829734079, -5.5967564147278495]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7882942122100702, -1.6135204529048024, -1.5124881930608076]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3350365406750075, -1.945497608164252, -1.68400120319489]}}