{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:05.599001", "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": "2014-Aug-24_to_2014-Aug-27_294.5_-40.0"}, "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": 2014080001016}, "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": "August 24 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2014"}, "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": 141534.20631330315}, "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": -40.0}, "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": 294.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "294.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 293.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 296.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -40.25}, "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": {"2014-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.5, -39.25], [-64.97, -39.47], [-64.75, -40.0], [-64.97, -40.53], [-65.5, -40.75], [-66.03, -40.53], [-66.25, -40.0], [-66.03, -39.47], [-65.5, -39.25]]]]}, "2014-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.15, -38.25], [-67.25, -38.0], [-67.15, -37.75], [-67.25, -37.5], [-67.03, -36.97], [-66.68, -36.82], [-66.54, -36.5], [-66.75, -36.0], [-66.65, -35.75], [-66.75, -35.5], [-66.65, -35.25], [-66.75, -35.0], [-66.65, -34.75], [-66.75, -34.5], [-66.65, -34.25], [-66.75, -34.0], [-66.53, -33.47], [-66.0, -33.25], [-65.75, -33.35], [-65.5, -33.25], [-65.25, -33.35], [-65.18, -33.32], [-65.15, -33.25], [-65.25, -33.0], [-65.03, -32.47], [-64.5, -32.25], [-63.97, -32.47], [-63.82, -32.82], [-63.47, -32.97], [-63.25, -33.5], [-63.47, -34.03], [-63.82, -34.18], [-63.85, -34.25], [-63.75, -34.5], [-63.85, -34.75], [-63.82, -34.82], [-63.47, -34.97], [-63.32, -35.32], [-62.97, -35.47], [-62.75, -36.0], [-62.85, -36.25], [-62.75, -36.5], [-62.85, -36.75], [-62.75, -37.0], [-62.97, -37.53], [-63.5, -37.75], [-63.75, -37.65], [-63.82, -37.68], [-63.85, -37.75], [-63.75, -38.0], [-63.97, -38.53], [-64.32, -38.68], [-64.35, -38.75], [-64.25, -39.0], [-64.47, -39.53], [-64.82, -39.68], [-64.85, -39.75], [-64.75, -40.0], [-64.97, -40.53], [-65.5, -40.75], [-66.03, -40.53], [-66.18, -40.18], [-66.53, -40.03], [-66.68, -39.68], [-67.03, -39.53], [-67.25, -39.0], [-67.15, -38.75], [-67.25, -38.5], [-67.15, -38.25]]]]}, "2014-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.15, -38.25], [-67.25, -38.0], [-67.15, -37.75], [-67.25, -37.5], [-67.03, -36.97], [-66.68, -36.82], [-66.54, -36.5], [-66.75, -36.0], [-66.65, -35.75], [-66.75, -35.5], [-66.65, -35.25], [-66.75, -35.0], [-66.65, -34.75], [-66.75, -34.5], [-66.65, -34.25], [-66.75, -34.0], [-66.53, -33.47], [-66.0, -33.25], [-65.75, -33.35], [-65.5, -33.25], [-65.25, -33.35], [-65.18, -33.32], [-65.15, -33.25], [-65.25, -33.0], [-65.03, -32.47], [-64.5, -32.25], [-63.97, -32.47], [-63.82, -32.82], [-63.47, -32.97], [-63.25, -33.5], [-63.47, -34.03], [-63.82, -34.18], [-63.85, -34.25], [-63.75, -34.5], [-63.85, -34.75], [-63.82, -34.82], [-63.47, -34.97], [-63.32, -35.32], [-62.97, -35.47], [-62.75, -36.0], [-62.85, -36.25], [-62.75, -36.5], [-62.85, -36.75], [-62.75, -37.0], [-62.97, -37.53], [-63.5, -37.75], [-63.75, -37.65], [-63.82, -37.68], [-63.85, -37.75], [-63.75, -38.0], [-63.97, -38.53], [-64.32, -38.68], [-64.35, -38.75], [-64.25, -39.0], [-64.47, -39.53], [-64.82, -39.68], [-64.85, -39.75], [-64.75, -40.0], [-64.97, -40.53], [-65.5, -40.75], [-66.03, -40.53], [-66.18, -40.18], [-66.53, -40.03], [-66.68, -39.68], [-67.03, -39.53], [-67.25, -39.0], [-67.15, -38.75], [-67.25, -38.5], [-67.15, -38.25]]]]}, "2014-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.15, -38.25], [-67.25, -38.0], [-67.15, -37.75], [-67.25, -37.5], [-67.03, -36.97], [-66.68, -36.82], [-66.54, -36.5], [-66.75, -36.0], [-66.65, -35.75], [-66.75, -35.5], [-66.65, -35.25], [-66.75, -35.0], [-66.65, -34.75], [-66.75, -34.5], [-66.65, -34.25], [-66.75, -34.0], [-66.53, -33.47], [-66.0, -33.25], [-65.75, -33.35], [-65.5, -33.25], [-65.25, -33.35], [-65.18, -33.32], [-65.15, -33.25], [-65.25, -33.0], [-65.03, -32.47], [-64.5, -32.25], [-63.97, -32.47], [-63.82, -32.82], [-63.47, -32.97], [-63.25, -33.5], [-63.47, -34.03], [-63.82, -34.18], [-63.85, -34.25], [-63.75, -34.5], [-63.85, -34.75], [-63.82, -34.82], [-63.47, -34.97], [-63.32, -35.32], [-62.97, -35.47], [-62.75, -36.0], [-62.85, -36.25], [-62.75, -36.5], [-62.85, -36.75], [-62.75, -37.0], [-62.97, -37.53], [-63.5, -37.75], [-63.75, -37.65], [-63.82, -37.68], [-63.85, -37.75], [-63.75, -38.0], [-63.97, -38.53], [-64.32, -38.68], [-64.35, -38.75], [-64.25, -39.0], [-64.47, -39.53], [-64.82, -39.68], [-64.85, -39.75], [-64.75, -40.0], [-64.97, -40.53], [-65.5, -40.75], [-66.03, -40.53], [-66.18, -40.18], [-66.53, -40.03], [-66.68, -39.68], [-67.03, -39.53], [-67.25, -39.0], [-67.15, -38.75], [-67.25, -38.5], [-67.15, -38.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.867298814743606}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.239155770814414}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.568738668234744, 6.129239313290611, 5.031073919943708, 6.189266420721879]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.568738668234744, 4.150359081709382, 3.5042101567302666, 4.771419498905232]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.815969571579274, -5.784082455793911, -7.0442105864610784, -5.914142449122204]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.815969571579274, -6.921279670058539, -8.867298814743606, -6.874175857385239]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.421723839858565, -1.4846464958581327, -1.772154864110052, -1.4884157156401479]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.421723839858565, -1.7261052499772847, -2.097966797444528, -1.716612247557714]}}