{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:16.536970", "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": "2013-Jan-25_to_2013-Jan-27_303.5_-26.0"}, "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": 2013010000803}, "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": "January 25 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 27 2013"}, "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": 135501.6015606514}, "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", "Paraguay"]}, "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": -26.0}, "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": 303.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 299.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 305.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.53, -26.97], [-60.18, -26.82], [-60.15, -26.75], [-60.25, -26.5], [-60.03, -25.97], [-59.5, -25.75], [-58.97, -25.97], [-58.82, -26.32], [-58.75, -26.35], [-58.68, -26.32], [-58.53, -25.97], [-58.18, -25.82], [-58.15, -25.75], [-58.25, -25.5], [-58.15, -25.25], [-58.25, -25.0], [-58.03, -24.47], [-57.68, -24.32], [-57.53, -23.97], [-57.0, -23.75], [-56.75, -23.85], [-56.5, -23.75], [-56.25, -23.85], [-56.0, -23.75], [-55.47, -23.97], [-55.32, -24.32], [-54.97, -24.47], [-54.75, -25.0], [-54.85, -25.25], [-54.75, -25.5], [-54.85, -25.75], [-54.82, -25.82], [-54.47, -25.97], [-54.25, -26.5], [-54.35, -26.75], [-54.25, -27.0], [-54.47, -27.53], [-55.0, -27.75], [-55.25, -27.65], [-55.32, -27.68], [-55.47, -28.03], [-56.0, -28.25], [-56.53, -28.03], [-56.68, -27.68], [-56.75, -27.65], [-56.82, -27.68], [-56.97, -28.03], [-57.5, -28.25], [-57.75, -28.15], [-57.82, -28.18], [-57.97, -28.53], [-58.32, -28.68], [-58.47, -29.03], [-59.0, -29.25], [-59.25, -29.15], [-59.5, -29.25], [-60.03, -29.03], [-60.18, -28.68], [-60.53, -28.53], [-60.75, -28.0], [-60.65, -27.75], [-60.75, -27.5], [-60.53, -26.97]]]]}, "2013-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.53, -26.97], [-60.18, -26.82], [-60.15, -26.75], [-60.25, -26.5], [-60.03, -25.97], [-59.5, -25.75], [-58.97, -25.97], [-58.82, -26.32], [-58.75, -26.35], [-58.68, -26.32], [-58.53, -25.97], [-58.18, -25.82], [-58.15, -25.75], [-58.25, -25.5], [-58.15, -25.25], [-58.25, -25.0], [-58.03, -24.47], [-57.68, -24.32], [-57.53, -23.97], [-57.0, -23.75], [-56.75, -23.85], [-56.5, -23.75], [-56.25, -23.85], [-56.0, -23.75], [-55.47, -23.97], [-55.32, -24.32], [-54.97, -24.47], [-54.75, -25.0], [-54.85, -25.25], [-54.75, -25.5], [-54.85, -25.75], [-54.82, -25.82], [-54.47, -25.97], [-54.25, -26.5], [-54.35, -26.75], [-54.25, -27.0], [-54.47, -27.53], [-55.0, -27.75], [-55.25, -27.65], [-55.32, -27.68], [-55.47, -28.03], [-56.0, -28.25], [-56.53, -28.03], [-56.68, -27.68], [-56.75, -27.65], [-56.82, -27.68], [-56.97, -28.03], [-57.5, -28.25], [-57.75, -28.15], [-57.82, -28.18], [-57.97, -28.53], [-58.32, -28.68], [-58.47, -29.03], [-59.0, -29.25], [-59.25, -29.15], [-59.5, -29.25], [-60.03, -29.03], [-60.18, -28.68], [-60.53, -28.53], [-60.75, -28.0], [-60.65, -27.75], [-60.75, -27.5], [-60.53, -26.97]]]]}, "2013-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.53, -26.97], [-60.18, -26.82], [-60.15, -26.75], [-60.25, -26.5], [-60.03, -25.97], [-59.5, -25.75], [-58.97, -25.97], [-58.82, -26.32], [-58.75, -26.35], [-58.68, -26.32], [-58.53, -25.97], [-58.18, -25.82], [-58.15, -25.75], [-58.25, -25.5], [-58.15, -25.25], [-58.25, -25.0], [-58.03, -24.47], [-57.68, -24.32], [-57.53, -23.97], [-57.0, -23.75], [-56.75, -23.85], [-56.5, -23.75], [-56.25, -23.85], [-56.0, -23.75], [-55.47, -23.97], [-55.32, -24.32], [-54.97, -24.47], [-54.75, -25.0], [-54.85, -25.25], [-54.75, -25.5], [-54.85, -25.75], [-54.82, -25.82], [-54.47, -25.97], [-54.25, -26.5], [-54.35, -26.75], [-54.25, -27.0], [-54.47, -27.53], [-55.0, 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maximum t2m.", "value": [22.40846637843441, 21.33970501689646, 21.615436658784063]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.097179491611009, -4.480280520417773, -4.110100316899522]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.7293871899407804, -5.506651076923845, -5.084760222530065]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6100653768518147, -2.297682156588253, -2.0790859666562866]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9087899773889418, -2.7161011789983, -2.5578496344702]}}