{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:27.521600", "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-Oct-04_to_2014-Oct-07_14.0_-76.5"}, "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": 2014100000183}, "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": "October 04 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 07 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": 96461.72865950294}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -76.5}, "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": 14.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "14.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 20.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -78.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -75.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, -76.53], [3.25, -76.0], [3.47, -75.47], [4.0, -75.25], [4.25, -75.35], [4.5, -75.25], [4.75, -75.35], [5.0, -75.25], [5.25, -75.35], [5.32, -75.32], [5.47, -74.97], [6.0, -74.75], [6.25, -74.85], [6.5, -74.75], [6.75, -74.85], [7.0, -74.75], [7.25, -74.85], [7.5, -74.75], [7.75, -74.85], [8.0, -74.75], [8.25, -74.85], [8.5, -74.75], [8.75, -74.85], [9.0, -74.75], [9.25, -74.85], [9.5, -74.75], [9.75, -74.85], [10.0, -74.75], [10.25, -74.85], [10.5, -74.75], [10.75, -74.85], [11.0, -74.75], [11.25, -74.85], [11.5, -74.75], [11.75, -74.85], [12.0, -74.75], [12.25, -74.85], [12.5, -74.75], [12.75, -74.85], [13.0, -74.75], [13.25, -74.85], [13.5, -74.75], [13.75, -74.85], [14.0, -74.75], [14.25, -74.85], [14.5, -74.75], [14.75, -74.85], [15.0, -74.75], [15.25, -74.85], [15.5, -74.75], [16.03, -74.97], [16.18, -75.32], [16.25, -75.35], [16.5, -75.25], [16.75, -75.35], [17.0, -75.25], [17.25, -75.35], [17.5, -75.25], [18.03, -75.47], [18.18, -75.82], [18.25, -75.85], [18.5, -75.75], [19.03, -75.97], [19.18, -76.32], [19.53, -76.47], [19.75, -77.0], [19.53, -77.53], [19.0, -77.75], [18.75, -77.65], [18.5, -77.75], [18.25, -77.65], [18.0, -77.75], [17.75, -77.65], [17.68, -77.68], [17.53, -78.03], [17.0, -78.25], [16.75, -78.15], [16.5, -78.25], [16.25, -78.15], [16.0, -78.25], [15.75, -78.15], [15.5, -78.25], [15.25, -78.15], [15.0, -78.25], [14.75, -78.15], [14.5, -78.25], [14.25, -78.15], [14.0, -78.25], [13.75, -78.15], [13.5, -78.25], [13.25, -78.15], [13.0, -78.25], [12.75, -78.15], [12.5, -78.25], [12.25, -78.15], [12.0, -78.25], [11.75, -78.15], [11.5, -78.25], [11.25, -78.15], [11.0, -78.25], [10.75, -78.15], [10.5, -78.25], [10.25, -78.15], [10.0, -78.25], [9.47, -78.03], [9.32, -77.68], [9.25, -77.65], [9.0, -77.75], [8.75, -77.65], [8.5, -77.75], [8.25, -77.65], [8.0, -77.75], [7.75, -77.65], [7.5, -77.75], [6.97, -77.53], [6.82, -77.18], [6.75, -77.15], [6.5, -77.25], [6.25, -77.15], [6.0, -77.25], [5.47, -77.03], [5.32, -76.68], [5.25, -76.65], [5.0, -76.75], [4.75, -76.65], [4.5, -76.75], [4.25, -76.65], [4.0, -76.75], [3.47, -76.53]]]]}, "2014-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, -76.53], [3.25, -76.0], [3.47, -75.47], [4.0, -75.25], [4.25, -75.35], [4.5, -75.25], [4.75, -75.35], [5.0, -75.25], [5.25, -75.35], [5.32, -75.32], [5.47, -74.97], [6.0, -74.75], [6.25, -74.85], [6.5, -74.75], [6.75, -74.85], [7.0, -74.75], [7.25, -74.85], [7.5, -74.75], [7.75, -74.85], [8.0, -74.75], [8.25, -74.85], [8.5, -74.75], [8.75, -74.85], [9.0, -74.75], [9.25, -74.85], [9.5, -74.75], [9.75, -74.85], [10.0, -74.75], [10.25, -74.85], [10.5, -74.75], [10.75, -74.85], [11.0, -74.75], [11.25, -74.85], [11.5, -74.75], [11.75, -74.85], [12.0, -74.75], [12.25, -74.85], [12.5, -74.75], [12.75, -74.85], [13.0, -74.75], [13.25, -74.85], [13.5, -74.75], [13.75, -74.85], [14.0, -74.75], [14.25, -74.85], [14.5, -74.75], [14.75, -74.85], [15.0, -74.75], [15.25, -74.85], [15.5, -74.75], [16.03, -74.97], [16.18, -75.32], [16.25, -75.35], [16.5, -75.25], [16.75, -75.35], [17.0, -75.25], [17.25, -75.35], [17.5, -75.25], [17.75, -75.35], [18.0, -75.25], [18.25, -75.35], [18.5, -75.25], [19.03, -75.47], [19.18, -75.82], [19.25, -75.85], [19.5, -75.75], [20.03, -75.97], [20.18, -76.32], [20.53, -76.47], [20.75, -77.0], [20.53, -77.53], [20.0, -77.75], [19.75, -77.65], [19.5, -77.75], [19.25, -77.65], [19.18, -77.68], [19.03, -78.03], [18.5, -78.25], [18.25, -78.15], [18.18, -78.18], [18.03, -78.53], [17.5, -78.75], [17.25, -78.65], [17.0, -78.75], [16.75, -78.65], [16.5, -78.75], [16.25, -78.65], [16.18, -78.68], [16.03, -79.03], [15.5, -79.25], [15.25, -79.15], [15.0, -79.25], [14.75, -79.15], [14.5, -79.25], [14.25, -79.15], [14.0, -79.25], [13.75, -79.15], [13.5, -79.25], [12.97, -79.03], [12.75, -78.5], [12.87, -78.2], [12.75, -78.15], [12.5, -78.25], [12.25, -78.15], [12.0, -78.25], [11.75, -78.15], [11.5, -78.25], [11.25, -78.15], [11.0, -78.25], [10.75, -78.15], [10.5, -78.25], [10.25, -78.15], [10.0, -78.25], [9.47, -78.03], [9.32, -77.68], [9.25, -77.65], [9.0, -77.75], [8.75, -77.65], [8.5, -77.75], [8.25, -77.65], [8.0, -77.75], [7.75, -77.65], [7.5, -77.75], [6.97, -77.53], [6.82, -77.18], [6.75, -77.15], [6.5, -77.25], [6.25, -77.15], [6.0, -77.25], [5.47, -77.03], [5.32, -76.68], [5.25, -76.65], [5.0, -76.75], [4.75, -76.65], [4.5, -76.75], [4.25, -76.65], [4.0, -76.75], [3.47, -76.53]]]]}, "2014-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, -76.53], [3.25, -76.0], [3.47, -75.47], [4.0, -75.25], [4.25, -75.35], [4.5, -75.25], [4.75, -75.35], [5.0, -75.25], [5.25, -75.35], [5.32, -75.32], [5.47, -74.97], [6.0, -74.75], [6.25, -74.85], [6.5, -74.75], [6.75, -74.85], [7.0, -74.75], [7.25, -74.85], [7.5, -74.75], [7.75, -74.85], [8.0, -74.75], [8.25, -74.85], [8.5, -74.75], [8.75, -74.85], [9.0, -74.75], [9.25, -74.85], [9.5, -74.75], [9.75, -74.85], [10.0, -74.75], [10.25, -74.85], [10.5, -74.75], [10.75, -74.85], [11.0, -74.75], [11.25, -74.85], [11.5, -74.75], [11.75, -74.85], [12.0, -74.75], [12.25, -74.85], [12.5, -74.75], [12.75, -74.85], [13.0, -74.75], [13.25, -74.85], [13.5, -74.75], [13.75, -74.85], [14.0, -74.75], [14.25, -74.85], [14.5, -74.75], [14.75, -74.85], [15.0, -74.75], [15.25, -74.85], [15.5, -74.75], [16.03, -74.97], [16.18, -75.32], [16.25, -75.35], [16.5, -75.25], [16.75, -75.35], [17.0, -75.25], [17.25, -75.35], [17.5, -75.25], [17.75, -75.35], [18.0, -75.25], [18.25, -75.35], [18.5, -75.25], [19.03, -75.47], [19.18, -75.82], [19.25, -75.85], [19.5, -75.75], [20.03, -75.97], [20.18, -76.32], [20.53, -76.47], [20.75, -77.0], [20.53, -77.53], [20.0, -77.75], [19.75, -77.65], [19.5, -77.75], [19.25, -77.65], [19.18, -77.68], [19.03, -78.03], [18.5, -78.25], [18.25, -78.15], [18.18, -78.18], [18.03, -78.53], [17.5, -78.75], [17.25, -78.65], [17.0, -78.75], [16.75, -78.65], [16.5, -78.75], [16.25, -78.65], [16.18, -78.68], [16.03, -79.03], [15.5, -79.25], [15.25, -79.15], [15.0, -79.25], [14.75, -79.15], [14.5, -79.25], [14.25, -79.15], [14.0, -79.25], [13.75, -79.15], [13.5, -79.25], [12.97, -79.03], [12.75, -78.5], [12.87, -78.2], [12.75, -78.15], [12.5, -78.25], [12.25, -78.15], [12.0, -78.25], [11.75, -78.15], [11.5, -78.25], [11.25, -78.15], [11.0, -78.25], [10.75, -78.15], [10.5, -78.25], [10.25, -78.15], [10.0, -78.25], [9.47, -78.03], [9.32, -77.68], [9.25, -77.65], [9.0, -77.75], [8.75, -77.65], [8.5, -77.75], [8.25, -77.65], [8.0, -77.75], [7.75, -77.65], [7.5, -77.75], [6.97, -77.53], [6.82, -77.18], [6.75, -77.15], [6.5, -77.25], [6.25, -77.15], [6.0, -77.25], [5.47, -77.03], [5.32, -76.68], [5.25, -76.65], [5.0, -76.75], [4.75, -76.65], [4.5, -76.75], [4.25, -76.65], [4.0, -76.75], [3.47, -76.53]]]]}, "2014-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.0, -77.25], [13.47, -77.03], [13.32, -76.68], [12.97, -76.53], [12.75, -76.0], [12.97, -75.47], [13.5, -75.25], [13.75, -75.35], [14.0, -75.25], [14.25, -75.35], [14.5, -75.25], [14.75, -75.35], [15.0, -75.25], [15.25, -75.35], [15.5, -75.25], [15.75, -75.35], [16.0, -75.25], [16.25, -75.35], [16.5, -75.25], [16.75, -75.35], [17.0, -75.25], [17.25, -75.35], [17.5, -75.25], [17.75, -75.35], [18.0, -75.25], [18.25, -75.35], [18.5, -75.25], [19.03, -75.47], [19.18, -75.82], [19.25, -75.85], [19.5, -75.75], [20.03, -75.97], [20.18, -76.32], [20.53, -76.47], [20.75, -77.0], [20.53, -77.53], [20.0, -77.75], [19.75, -77.65], [19.5, -77.75], [19.25, -77.65], [19.18, -77.68], [19.03, -78.03], [18.5, -78.25], [18.25, -78.15], [18.18, -78.18], [18.03, -78.53], [17.5, -78.75], [17.25, -78.65], [17.0, -78.75], [16.75, -78.65], [16.5, -78.75], [16.25, -78.65], [16.18, -78.68], [16.03, -79.03], [15.5, -79.25], [15.25, -79.15], [15.0, -79.25], [14.75, -79.15], [14.5, -79.25], [14.25, -79.15], [14.0, -79.25], [13.75, -79.15], [13.5, -79.25], [12.97, -79.03], [12.75, -78.5], [12.97, -77.97], [13.32, -77.82], [13.47, -77.47], [14.0, -77.25]], [[14.25, -77.35], [14.32, -77.32], [14.35, -77.25], [14.32, -77.18], [14.25, -77.15], [14.0, -77.25], [14.25, -77.35]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -11.02053594931084}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -8.440839795640818}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-56.16742944961322, -57.67631340425862, -57.334341797209305, -57.789833308269664]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-58.60231589292866, -59.44918704819875, -59.135984059695744, -59.433782353509656]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.70613448541124, -9.057086922556712, -8.77903527232197, -7.607602496919733]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.691031587397191, -11.02053594931084, -9.781356420543517, -7.993381580353798]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3915495133366438, -1.6340866864622103, -1.5428755958314804, -1.3118754111413362]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5437373866649173, -1.9330974902784175, -1.715857866474812, -1.4002258926046498]}}