{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:55.416690", "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-Mar-22_to_2014-Mar-24_302.5_-30.0"}, "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": 2014030000890}, "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 22 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 24 2014"}, "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": 144813.02648046374}, "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": -30.0}, "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": 302.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 302.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -27.0], [-62.03, -26.47], [-61.5, -26.25], [-61.25, -26.35], [-61.0, -26.25], [-60.75, -26.35], [-60.5, -26.25], [-60.25, -26.35], [-60.18, -26.32], [-60.15, -26.25], [-60.25, -26.0], [-60.03, -25.47], [-59.68, -25.32], [-59.53, -24.97], [-59.0, -24.75], [-58.75, -24.85], [-58.5, -24.75], [-58.25, -24.85], [-58.0, -24.75], [-57.47, -24.97], [-57.25, -25.5], [-57.35, -25.75], [-57.32, -25.82], [-56.97, -25.97], [-56.75, -26.5], [-56.97, -27.03], [-57.32, -27.18], [-57.47, -27.53], [-57.82, -27.68], [-57.97, -28.03], [-58.32, -28.18], [-58.46, -28.5], [-58.25, -29.0], [-58.35, -29.25], [-58.32, -29.32], [-58.25, -29.35], [-58.0, -29.25], [-57.75, -29.35], [-57.5, -29.25], [-56.97, -29.47], [-56.75, -30.0], [-56.97, -30.53], [-57.5, -30.75], [-57.75, -30.65], [-58.0, -30.75], [-58.25, -30.65], [-58.5, -30.75], [-58.75, -30.65], [-59.0, -30.75], [-59.5, -30.54], [-60.0, -30.75], [-60.25, -30.65], [-60.5, -30.75], [-61.03, -30.53], [-61.18, -30.18], [-61.53, -30.03], [-61.75, -29.5], [-61.65, -29.25], [-61.75, -29.0], [-61.65, -28.75], [-61.7, -28.62], [-62.0, -28.75], [-62.53, -28.53], [-62.75, -28.0], [-62.53, -27.47], [-62.18, -27.32], [-62.15, -27.25], [-62.25, -27.0]]]]}, "2014-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -27.0], [-62.03, -26.47], [-61.5, -26.25], [-61.25, -26.35], [-61.0, -26.25], [-60.75, -26.35], [-60.5, -26.25], [-60.25, -26.35], [-60.18, -26.32], [-60.15, -26.25], [-60.25, -26.0], [-60.03, -25.47], [-59.68, -25.32], [-59.53, -24.97], [-59.0, -24.75], [-58.75, -24.85], [-58.5, -24.75], [-58.25, -24.85], [-58.0, -24.75], [-57.47, -24.97], [-57.25, -25.5], [-57.35, -25.75], [-57.32, -25.82], [-56.97, -25.97], [-56.75, -26.5], [-56.97, -27.03], [-57.32, -27.18], [-57.47, -27.53], [-57.82, -27.68], [-57.97, -28.03], [-58.32, -28.18], [-58.46, -28.5], [-58.25, -29.0], [-58.35, -29.25], [-58.32, -29.32], [-58.25, -29.35], [-58.0, -29.25], [-57.75, -29.35], [-57.5, -29.25], [-56.97, -29.47], [-56.75, -30.0], [-56.97, -30.53], [-57.5, -30.75], [-57.75, -30.65], [-58.0, -30.75], [-58.25, -30.65], [-58.5, -30.75], [-58.75, -30.65], [-59.0, -30.75], [-59.5, -30.54], [-60.0, -30.75], [-60.25, -30.65], [-60.5, -30.75], [-61.03, -30.53], [-61.18, -30.18], [-61.53, -30.03], [-61.75, -29.5], [-61.65, -29.25], [-61.75, -29.0], [-61.65, -28.75], [-61.7, -28.62], [-62.0, -28.75], [-62.53, -28.53], [-62.75, -28.0], [-62.53, -27.47], [-62.18, -27.32], [-62.15, -27.25], [-62.25, -27.0]]]]}, "2014-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -27.0], [-62.03, -26.47], [-61.5, -26.25], [-61.25, -26.35], [-61.0, -26.25], [-60.75, -26.35], [-60.5, -26.25], [-60.25, -26.35], [-60.18, -26.32], [-60.15, -26.25], [-60.25, -26.0], [-60.03, -25.47], [-59.68, -25.32], [-59.53, -24.97], [-59.0, -24.75], [-58.75, -24.85], [-58.5, -24.75], [-58.25, -24.85], [-58.0, -24.75], [-57.47, -24.97], [-57.25, -25.5], [-57.35, -25.75], [-57.32, -25.82], [-56.97, -25.97], [-56.75, -26.5], [-56.97, -27.03], [-57.32, -27.18], [-57.47, -27.53], [-57.82, -27.68], [-57.97, -28.03], [-58.32, -28.18], [-58.46, -28.5], [-58.25, -29.0], [-58.35, -29.25], [-58.32, -29.32], [-58.25, -29.35], [-58.0, -29.25], [-57.75, -29.35], [-57.5, -29.25], [-56.97, -29.47], [-56.75, -30.0], [-56.97, -30.53], [-57.5, -30.75], [-57.75, -30.65], [-58.0, -30.75], [-58.25, -30.65], [-58.5, -30.75], [-58.75, -30.65], [-59.0, -30.75], [-59.5, -30.54], [-60.0, -30.75], [-60.25, -30.65], [-60.5, -30.75], [-61.03, -30.53], [-61.18, -30.18], [-61.53, -30.03], [-61.75, -29.5], [-61.65, -29.25], [-61.75, -29.0], [-61.65, -28.75], [-61.7, -28.62], [-62.0, -28.75], [-62.53, -28.53], [-62.75, -28.0], [-62.53, -27.47], [-62.18, -27.32], [-62.15, -27.25], [-62.25, -27.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.907926164021887}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.217951841729878}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.75624393624571, 16.875647595187672, 18.974777943947288]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.895738516224071, 15.42218893061613, 17.77740392984481]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.834686376572202, -6.5134812310316414, -4.305687917585788]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.299592792553597, -6.907926164021887, -4.966388042426843]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8163728543208446, -2.405497707507021, -1.5320441844116062]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.35456857402768, -2.789810907193382, -1.762293304049065]}}