{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:40.919988", "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-Feb-06_to_2014-Feb-09_322.5_-12.5"}, "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": 2014020000304}, "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": "February 06 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 09 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": 75453.86261328073}, "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": ["N.E.South-America", "S.Atlantic-Ocean"]}, "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": ["South Atlantic Ocean"]}, "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": -12.5}, "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": 322.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "322.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 322.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 326.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.04, -12.0], [-38.25, -11.5], [-38.03, -10.97], [-37.5, -10.75], [-36.97, -10.97], [-36.75, -11.5], [-36.87, -11.8], [-36.75, -11.85], [-36.68, -11.82], [-36.53, -11.47], [-36.0, -11.25], [-35.75, -11.35], [-35.5, -11.25], [-35.25, -11.35], [-35.0, -11.25], [-34.75, -11.35], [-34.5, -11.25], [-33.97, -11.47], [-33.82, -11.82], [-33.47, -11.97], [-33.32, -12.32], [-32.97, -12.47], [-32.75, -13.0], [-32.97, -13.53], [-33.5, -13.75], [-33.75, -13.65], [-34.0, -13.75], [-34.25, -13.65], [-34.5, -13.75], [-34.75, -13.65], [-35.0, -13.75], [-35.25, -13.65], [-35.5, -13.75], [-35.75, -13.65], [-36.0, -13.75], [-36.25, -13.65], [-36.5, -13.75], [-36.75, -13.65], [-37.0, -13.75], [-37.25, -13.65], [-37.5, -13.75], [-38.03, -13.53], [-38.25, -13.0], [-38.15, -12.75], [-38.25, -12.5], [-38.04, -12.0]]]]}, "2014-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.15, -12.25], [-38.25, -12.0], [-38.15, -11.75], [-38.25, -11.5], [-38.03, -10.97], [-37.5, -10.75], [-37.25, -10.85], [-37.0, -10.75], [-36.75, -10.85], [-36.5, -10.75], [-35.97, -10.97], [-35.82, -11.32], [-35.75, -11.35], [-35.5, -11.25], [-35.25, -11.35], [-35.0, -11.25], [-34.75, -11.35], [-34.5, -11.25], [-33.97, -11.47], [-33.82, -11.82], [-33.47, -11.97], [-33.32, -12.32], [-32.97, -12.47], [-32.75, -13.0], [-32.97, -13.53], [-33.5, -13.75], [-33.75, -13.65], [-34.0, -13.75], [-34.25, -13.65], [-34.5, -13.75], [-34.75, -13.65], [-35.0, -13.75], [-35.25, -13.65], [-35.5, -13.75], [-35.75, -13.65], [-36.0, -13.75], [-36.25, -13.65], [-36.5, -13.75], [-36.75, -13.65], [-37.0, -13.75], [-37.25, -13.65], [-37.5, -13.75], [-38.03, -13.53], [-38.25, -13.0], [-38.15, -12.75], [-38.25, -12.5], [-38.15, -12.25]]]]}, "2014-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.15, -12.25], [-38.25, -12.0], [-38.15, -11.75], [-38.25, -11.5], [-38.03, -10.97], [-37.5, -10.75], [-37.25, -10.85], [-37.0, -10.75], [-36.75, -10.85], [-36.5, -10.75], [-35.97, -10.97], [-35.82, -11.32], [-35.75, -11.35], [-35.5, -11.25], [-35.25, -11.35], [-35.0, -11.25], [-34.75, -11.35], [-34.5, -11.25], [-33.97, -11.47], [-33.82, -11.82], [-33.47, -11.97], [-33.32, -12.32], [-32.97, -12.47], [-32.75, -13.0], [-32.97, -13.53], [-33.5, -13.75], [-33.75, -13.65], [-34.0, -13.75], [-34.25, -13.65], [-34.5, -13.75], [-34.75, -13.65], [-35.0, -13.75], [-35.25, -13.65], [-35.5, -13.75], [-35.75, -13.65], [-36.0, -13.75], [-36.25, -13.65], [-36.5, -13.75], [-36.75, -13.65], [-37.0, -13.75], [-37.25, -13.65], [-37.5, -13.75], [-38.03, -13.53], [-38.25, -13.0], [-38.15, -12.75], [-38.25, -12.5], [-38.15, -12.25]]]]}, "2014-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.03, -11.47], [-37.68, -11.32], [-37.53, -10.97], [-37.0, -10.75], [-36.75, -10.85], [-36.5, -10.75], [-35.97, -10.97], [-35.75, -11.5], [-35.97, -12.03], [-36.5, -12.25], [-36.75, -12.15], [-36.82, -12.18], [-36.85, -12.25], [-36.75, -12.5], [-36.97, -13.03], [-37.5, -13.25], [-38.03, -13.03], [-38.25, -12.5], [-38.15, -12.25], [-38.25, -12.0], [-38.03, -11.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.4469053010323591}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0766487354651155}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.66502012931221, 25.52312382472735, 25.66604098562061, 25.813435622282555]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.328069490451128, 25.207200103535854, 25.23952721996875, 25.55572044722561]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.040781757928471, -1.1748061547694897, -1.0387748808189508, -0.8971448328028515]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3204105754344369, -1.4368056441452381, -1.4469053010323591, -1.1226422086937191]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0324477040687943, -2.2693906928924488, -2.0201033373277117, -1.549338796555277]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.713169055972379, -2.70668277367195, -2.7104952912447318, -1.8426573449548285]}}