{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:03.749281", "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-Apr-09_to_2014-Apr-13_10.5_-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": 2014040000347}, "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": "April 09 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 13 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 137209.75380155968}, "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": 10.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "10.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -0.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 20.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -79.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -74.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.47, -76.03], [6.25, -75.5], [6.47, -74.97], [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], [8.82, -74.82], [8.97, -74.47], [9.5, -74.25], [10.03, -74.47], [10.18, -74.82], [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], [15.03, -74.97], [15.18, -75.32], [15.25, -75.35], [15.5, -75.25], [15.75, -75.35], [16.0, -75.25], [16.53, -75.47], [16.68, -75.82], [16.75, -75.85], [17.0, -75.75], [17.25, -75.85], [17.5, -75.75], [18.03, -75.97], [18.25, -76.5], [18.03, -77.03], [17.5, -77.25], [17.25, -77.15], [17.0, -77.25], [16.75, -77.15], [16.5, -77.25], [16.25, -77.15], [16.0, -77.25], [15.75, -77.15], [15.5, -77.25], [15.25, -77.15], [15.0, -77.25], [14.75, -77.15], [14.5, -77.25], [14.25, -77.15], [14.0, -77.25], [13.75, -77.15], [13.5, -77.25], [13.25, -77.15], [13.0, -77.25], [12.75, -77.15], [12.5, -77.25], [12.25, -77.15], [12.0, -77.25], [11.75, -77.15], [11.5, -77.25], [11.25, -77.15], [11.0, -77.25], [10.75, -77.15], [10.5, -77.25], [10.25, -77.15], [10.0, -77.25], [9.75, -77.15], [9.5, -77.25], [9.25, -77.15], [9.0, -77.25], [8.75, -77.15], [8.5, -77.25], [7.97, -77.03], [7.82, -76.68], [7.47, -76.53], [7.32, -76.18], [7.25, -76.15], [7.0, -76.25], [6.47, -76.03]]]]}, "2014-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.5, -76.25], [0.75, -76.35], [1.0, -76.25], [0.47, -76.03], [0.25, -75.5], [0.47, -74.97], [1.0, -74.75], [1.25, -74.85], [1.5, -74.75], [1.75, -74.85], [2.0, -74.75], [2.25, -74.85], [2.5, -74.75], [2.75, -74.85], [3.0, -74.75], [3.25, -74.85], [3.5, -74.75], [3.75, -74.85], [4.0, -74.75], [4.25, -74.85], [4.5, -74.75], [4.75, -74.85], [5.0, -74.75], [5.25, -74.85], [5.5, -74.75], [5.75, -74.85], [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], [8.82, -74.82], [8.97, -74.47], [9.5, -74.25], [10.03, -74.47], [10.18, -74.82], [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], [15.03, -74.97], [15.18, -75.32], [15.25, -75.35], [15.5, -75.25], [15.75, -75.35], [16.0, -75.25], [16.53, -75.47], [16.68, -75.82], [16.75, -75.85], [17.0, -75.75], [17.25, -75.85], [17.5, -75.75], [18.03, -75.97], [18.25, -76.5], [18.13, -76.8], [18.25, -76.85], [18.5, -76.75], [18.75, -76.85], [19.0, -76.75], [19.25, -76.85], [19.5, -76.75], [19.75, -76.85], [20.0, -76.75], [20.25, -76.85], [20.5, -76.75], [21.03, -76.97], [21.25, -77.5], [21.03, -78.03], [20.5, -78.25], [20.25, -78.15], [20.0, -78.25], [19.75, -78.15], [19.5, -78.25], [19.25, -78.15], [19.0, -78.25], [18.75, -78.15], [18.5, -78.25], [18.25, -78.15], [18.0, -78.25], [17.75, -78.15], [17.68, -78.18], [17.53, -78.53], [17.0, -78.75], [16.75, -78.65], [16.5, -78.75], [16.25, -78.65], [16.0, -78.75], [15.75, -78.65], [15.5, -78.75], [15.25, -78.65], [15.0, -78.75], [14.75, -78.65], [14.5, -78.75], [14.25, -78.65], [14.0, -78.75], [13.75, -78.65], [13.5, -78.75], [13.25, -78.65], [13.0, -78.75], [12.75, -78.65], [12.5, -78.75], [12.25, -78.65], [12.0, -78.75], [11.75, -78.65], [11.5, -78.75], [11.25, -78.65], [11.0, -78.75], [10.75, -78.65], [10.68, -78.68], [10.53, -79.03], [10.0, -79.25], [9.75, -79.15], [9.5, -79.25], [9.25, -79.15], [9.0, -79.25], [8.75, -79.15], [8.5, -79.25], [8.25, -79.15], [8.0, -79.25], [7.75, -79.15], [7.5, -79.25], [7.25, -79.15], [7.0, -79.25], [6.75, -79.15], [6.5, -79.25], [6.25, -79.15], [6.0, -79.25], [5.75, -79.15], [5.5, -79.25], [5.25, -79.15], [5.18, -79.18], [5.03, -79.53], [4.5, -79.75], [4.25, -79.65], [4.0, -79.75], [3.75, -79.65], [3.5, -79.75], [3.25, -79.65], [3.0, -79.75], [2.47, -79.53], [2.32, -79.18], [2.25, -79.15], [2.0, -79.25], [1.47, -79.03], [1.32, -78.68], [1.25, -78.65], [1.0, -78.75], [0.47, -78.53], [0.32, -78.18], [0.25, -78.15], [0.0, -78.25], [-0.53, -78.03], [-0.75, -77.5], [-0.53, -76.97], [-0.18, -76.82], [-0.03, -76.47], [0.5, -76.25]], [[1.53, -76.47], [1.68, -76.82], [1.75, -76.85], [2.0, -76.75], [2.25, -76.85], [2.5, -76.75], [2.75, -76.85], [3.0, -76.75], [3.25, -76.85], [3.5, -76.75], [2.97, -76.53], [2.82, -76.18], [2.75, -76.15], [2.5, -76.25], [2.25, -76.15], [2.0, -76.25], [1.75, -76.15], [1.5, -76.25], [1.25, -76.15], [1.0, -76.25], [1.53, -76.47]], [[3.75, -76.85], [4.0, -76.75], [3.75, -76.65], [3.5, -76.75], [3.75, -76.85]], [[4.25, -76.85], [4.5, -76.75], [4.25, -76.65], [4.0, -76.75], [4.25, -76.85]], [[4.75, -76.85], [5.0, -76.75], [4.75, -76.65], [4.5, -76.75], [4.75, -76.85]], [[5.25, -76.85], [5.32, -76.82], [5.37, -76.7], [5.25, -76.65], [5.0, -76.75], [5.25, -76.85]]]]}, "2014-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.5, -76.25], [0.75, -76.35], [1.0, -76.25], [0.47, -76.03], [0.25, -75.5], [0.47, -74.97], [1.0, -74.75], [1.25, -74.85], [1.5, -74.75], [1.75, -74.85], [2.0, -74.75], [2.25, -74.85], [2.5, -74.75], [2.75, -74.85], [3.0, -74.75], [3.25, -74.85], [3.5, -74.75], [3.75, -74.85], [4.0, -74.75], [4.25, -74.85], [4.5, -74.75], [4.75, -74.85], [5.0, -74.75], [5.25, -74.85], [5.5, -74.75], [5.75, -74.85], [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], [8.82, -74.82], [8.97, -74.47], [9.5, -74.25], [10.03, -74.47], [10.18, -74.82], [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], [15.03, -74.97], [15.18, -75.32], [15.25, -75.35], [15.5, -75.25], [15.75, -75.35], [16.0, -75.25], [16.53, -75.47], [16.68, -75.82], [16.75, -75.85], [17.0, -75.75], [17.25, -75.85], [17.5, -75.75], [18.03, -75.97], [18.25, -76.5], [18.13, -76.8], [18.25, -76.85], [18.5, -76.75], [18.75, -76.85], [19.0, -76.75], [19.25, -76.85], [19.5, -76.75], [19.75, -76.85], [20.0, -76.75], [20.25, -76.85], [20.5, -76.75], [21.03, -76.97], [21.25, -77.5], [21.03, -78.03], [20.5, -78.25], [20.25, -78.15], [20.0, -78.25], [19.75, -78.15], [19.5, -78.25], [19.25, -78.15], [19.0, -78.25], [18.75, -78.15], [18.5, -78.25], [18.25, -78.15], [18.13, -78.2], [18.25, -78.5], [18.03, -79.03], [17.5, -79.25], [16.97, -79.03], [16.82, -78.68], [16.75, -78.65], [16.5, -78.75], [16.25, -78.65], [16.0, -78.75], [15.75, -78.65], [15.5, -78.75], [15.25, -78.65], [15.0, -78.75], [14.75, -78.65], [14.5, -78.75], [14.25, -78.65], [14.0, -78.75], [13.75, -78.65], [13.5, -78.75], [13.25, -78.65], [13.0, -78.75], [12.75, -78.65], [12.5, -78.75], [12.25, -78.65], [12.0, -78.75], [11.75, -78.65], [11.5, -78.75], [11.25, -78.65], [11.0, -78.75], [10.75, -78.65], [10.68, -78.68], [10.53, -79.03], [10.0, -79.25], [9.75, -79.15], [9.5, -79.25], [9.25, -79.15], [9.0, -79.25], [8.75, -79.15], [8.5, -79.25], [8.25, -79.15], [8.0, -79.25], [7.75, -79.15], [7.5, -79.25], [7.25, -79.15], [7.0, -79.25], [6.75, -79.15], [6.5, -79.25], [6.25, -79.15], [6.0, -79.25], [5.75, -79.15], [5.5, -79.25], [5.25, -79.15], [5.18, -79.18], [5.03, -79.53], [4.5, -79.75], [4.25, -79.65], [4.0, -79.75], [3.75, -79.65], [3.5, -79.75], [3.25, -79.65], [3.0, -79.75], [2.47, -79.53], [2.32, -79.18], [2.25, -79.15], [2.0, -79.25], [1.47, -79.03], [1.32, -78.68], [1.25, -78.65], [1.0, -78.75], [0.47, -78.53], [0.32, -78.18], [0.25, -78.15], [0.0, -78.25], [-0.53, -78.03], [-0.75, -77.5], [-0.53, -76.97], [-0.18, -76.82], [-0.03, -76.47], [0.5, -76.25]], [[1.53, -76.47], [1.68, -76.82], [1.75, -76.85], [2.0, -76.75], [2.25, -76.85], [2.5, -76.75], [2.75, -76.85], [3.0, -76.75], [3.25, -76.85], [3.5, -76.75], [2.97, -76.53], [2.82, -76.18], [2.75, -76.15], [2.5, -76.25], [2.25, -76.15], [2.0, -76.25], [1.75, -76.15], [1.5, -76.25], [1.25, -76.15], [1.0, -76.25], [1.53, -76.47]], [[3.75, -76.85], [4.0, -76.75], [3.75, -76.65], [3.5, -76.75], [3.75, -76.85]], [[4.25, -76.85], [4.5, -76.75], [4.25, -76.65], [4.0, -76.75], [4.25, -76.85]], [[4.75, -76.85], [5.0, -76.75], [4.75, -76.65], [4.5, -76.75], [4.75, -76.85]], [[5.25, -76.85], [5.32, -76.82], [5.37, -76.7], [5.25, -76.65], [5.0, -76.75], [5.25, -76.85]]]]}, "2014-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.5, -76.25], [0.75, -76.35], [1.0, -76.25], [0.47, -76.03], [0.25, -75.5], [0.47, -74.97], [1.0, -74.75], [1.25, -74.85], [1.5, -74.75], [1.75, -74.85], [2.0, -74.75], [2.25, -74.85], [2.5, -74.75], [2.75, -74.85], [3.0, -74.75], [3.25, -74.85], [3.5, -74.75], [3.75, -74.85], [4.0, -74.75], [4.25, -74.85], [4.5, -74.75], [4.75, -74.85], [5.0, -74.75], [5.25, -74.85], [5.5, -74.75], [5.75, -74.85], [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], [12.53, -74.97], [12.68, -75.32], [12.75, -75.35], [13.0, -75.25], [13.25, -75.35], [13.5, -75.25], [13.75, -75.35], [14.0, -75.25], [14.53, -75.47], [14.68, -75.82], [14.75, -75.85], [15.0, -75.75], [15.25, -75.85], [15.5, -75.75], [16.03, -75.97], [16.18, -76.32], [16.25, -76.35], [16.5, -76.25], [16.75, -76.35], [17.0, -76.25], [17.53, -76.47], [17.68, -76.82], [17.75, -76.85], [18.0, -76.75], [18.25, -76.85], [18.5, -76.75], [18.75, -76.85], [19.0, -76.75], [19.25, -76.85], [19.5, -76.75], [19.75, -76.85], [20.0, -76.75], [20.25, -76.85], [20.5, -76.75], [21.03, -76.97], [21.25, -77.5], [21.03, -78.03], [20.5, -78.25], [20.25, -78.15], [20.0, -78.25], [19.75, -78.15], [19.5, -78.25], [19.25, -78.15], [19.0, -78.25], [18.75, -78.15], [18.5, -78.25], [18.25, -78.15], [18.13, -78.2], [18.25, -78.5], [18.03, -79.03], [17.5, -79.25], [16.97, -79.03], [16.82, -78.68], [16.75, -78.65], [16.5, -78.75], [16.25, -78.65], [16.0, -78.75], [15.75, -78.65], [15.5, -78.75], [15.25, -78.65], [15.0, -78.75], [14.75, -78.65], [14.5, -78.75], [14.25, -78.65], [14.0, -78.75], [13.75, -78.65], [13.5, -78.75], [13.25, -78.65], [13.0, -78.75], [12.75, -78.65], [12.5, -78.75], [12.25, -78.65], [12.0, -78.75], [11.75, -78.65], [11.5, -78.75], [11.25, -78.65], [11.0, -78.75], [10.75, -78.65], [10.68, -78.68], [10.53, -79.03], [10.0, -79.25], [9.75, -79.15], [9.5, -79.25], [9.25, -79.15], [9.0, -79.25], [8.75, -79.15], [8.5, -79.25], [8.25, -79.15], [8.0, -79.25], [7.75, -79.15], [7.5, -79.25], [7.25, -79.15], [7.0, -79.25], [6.75, -79.15], [6.5, -79.25], [6.25, -79.15], [6.0, -79.25], [5.75, -79.15], [5.5, -79.25], [5.25, -79.15], [5.18, -79.18], [5.03, -79.53], [4.5, -79.75], [4.25, -79.65], [4.0, -79.75], [3.75, -79.65], [3.5, -79.75], [3.25, -79.65], [3.0, -79.75], [2.47, -79.53], [2.32, -79.18], [2.25, -79.15], [2.0, -79.25], [1.47, -79.03], [1.32, -78.68], [1.25, -78.65], [1.0, -78.75], [0.47, -78.53], [0.32, -78.18], [0.25, -78.15], [0.0, -78.25], [-0.53, -78.03], [-0.75, -77.5], [-0.53, -76.97], [-0.18, -76.82], [-0.03, -76.47], [0.5, -76.25]], [[1.53, -76.47], [1.68, -76.82], [1.75, -76.85], [2.0, -76.75], [2.25, -76.85], [2.5, -76.75], [2.75, -76.85], [3.0, -76.75], [3.25, -76.85], [3.5, -76.75], [2.97, -76.53], [2.82, -76.18], [2.75, -76.15], [2.5, -76.25], [2.25, -76.15], [2.0, -76.25], [1.75, -76.15], [1.5, -76.25], [1.25, -76.15], [1.0, -76.25], [1.53, -76.47]], [[3.75, -76.85], [4.0, -76.75], [3.75, -76.65], [3.5, -76.75], [3.75, -76.85]], [[4.25, -76.85], [4.5, -76.75], [4.25, -76.65], [4.0, -76.75], [4.25, -76.85]], [[4.75, -76.85], [5.0, -76.75], [4.75, -76.65], [4.5, -76.75], [4.75, -76.85]], [[5.25, -76.85], [5.32, -76.82], [5.37, -76.7], [5.25, -76.65], [5.0, -76.75], [5.25, -76.85]]]]}, "2014-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.5, -77.75], [18.03, -77.97], [18.25, -78.5], [18.03, -79.03], [17.5, -79.25], [16.97, -79.03], [16.75, -78.5], [16.97, -77.97], [17.5, -77.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -12.231091062186465}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -9.50424172538031}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-57.48609210877299, -57.00958609843431, -58.282637775211185, -57.59333390504298, -58.30675819634112]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-59.178469280174085, -62.69233503781891, -62.955292078960866, -61.196660710735955, -58.30675819634112]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.931080578677481, -8.977119680422003, -10.290152647697237, -9.687856559954898, -7.329333176944203]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.712357731640509, -12.066950993934142, -12.231091062186465, -11.398262856774267, -7.329333176944203]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3055276295681837, -1.5585582268361076, -1.706549036730635, -1.569182767394679, -1.1783247993896195]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3912293014475936, -1.9225071783081324, -2.0577382959205393, -2.005598606856682, -1.1783247993896195]}}