{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:54.126396", "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-Nov-24_to_2013-Nov-26_313.5_-21.5"}, "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": 2013110001080}, "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": "November 24 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 26 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": 54631.68528622757}, "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": ["Brazil"]}, "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": -21.5}, "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": 313.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "313.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 312.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 315.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.03, -22.03], [-48.25, -21.5], [-48.03, -20.97], [-47.5, -20.75], [-47.25, -20.85], [-47.18, -20.82], [-47.03, -20.47], [-46.5, -20.25], [-46.25, -20.35], [-46.18, -20.32], [-46.03, -19.97], [-45.5, -19.75], [-44.97, -19.97], [-44.82, -20.32], [-44.75, -20.35], [-44.5, -20.25], [-43.97, -20.47], [-43.75, -21.0], [-43.85, -21.25], [-43.75, -21.5], [-43.97, -22.03], [-44.32, -22.18], [-44.47, -22.53], [-44.82, -22.68], [-44.97, -23.03], [-45.5, -23.25], [-45.75, -23.15], [-46.0, -23.25], [-46.53, -23.03], [-46.68, -22.68], [-47.03, -22.53], [-47.18, -22.18], [-47.25, -22.15], [-47.5, -22.25], [-48.03, -22.03]]]]}, "2013-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.03, -22.03], [-48.25, -21.5], [-48.03, -20.97], [-47.5, -20.75], [-47.25, -20.85], [-47.18, -20.82], [-47.03, -20.47], [-46.5, -20.25], [-46.25, -20.35], [-46.18, -20.32], [-46.03, -19.97], [-45.5, -19.75], [-44.97, -19.97], [-44.82, -20.32], [-44.75, -20.35], [-44.5, -20.25], [-43.97, -20.47], [-43.75, -21.0], [-43.85, -21.25], [-43.75, -21.5], [-43.97, -22.03], [-44.32, -22.18], [-44.47, -22.53], [-44.82, -22.68], [-44.97, -23.03], [-45.5, -23.25], [-45.75, -23.15], [-46.0, -23.25], [-46.53, -23.03], [-46.68, -22.68], [-47.03, -22.53], [-47.18, -22.18], [-47.25, -22.15], [-47.5, -22.25], [-48.03, -22.03]]]]}, "2013-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.03, -22.03], [-48.25, -21.5], [-48.03, -20.97], [-47.5, -20.75], [-47.25, -20.85], [-47.18, -20.82], [-47.03, -20.47], [-46.5, -20.25], [-46.25, -20.35], [-46.18, -20.32], [-46.03, -19.97], [-45.5, -19.75], [-44.97, -19.97], [-44.82, -20.32], [-44.75, -20.35], [-44.5, -20.25], [-43.97, -20.47], [-43.75, -21.0], [-43.85, -21.25], [-43.75, -21.5], [-43.97, -22.03], [-44.32, -22.18], [-44.47, -22.53], [-44.82, -22.68], [-44.97, -23.03], [-45.5, -23.25], [-45.75, -23.15], [-46.0, -23.25], [-46.53, -23.03], [-46.68, -22.68], [-47.03, -22.53], [-47.18, -22.18], [-47.25, -22.15], [-47.5, -22.25], [-48.03, -22.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.5395261730363927}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.5471304425339034}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.258569263936465, 18.933063172888865, 19.177037212355344]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.011649654840255, 17.19061264786211, 17.40171593350817]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3371889350228408, -2.748511247066188, -2.5556911455126814]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.6357151740864992, -3.5395261730363927, -3.2284201221836497]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5941328652061282, -1.9958442161766379, -1.87433980103546]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8277593741195408, -2.480924611442386, -2.4172324887915706]}}