{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:07.532576", "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": "2018-Jun-26_to_2018-Jun-28_353.5_-71.0"}, "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": 2018060002966}, "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": "June 26 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 2018"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 199618.55866129426}, "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": ["Southern 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": -71.0}, "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": -6.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "353.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -7.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -71.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -68.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, -70.5], [-8.03, -69.97], [-7.68, -69.82], [-7.53, -69.47], [-7.0, -69.25], [-6.75, -69.35], [-6.5, -69.25], [-6.25, -69.35], [-6.0, -69.25], [-5.75, -69.35], [-5.5, -69.25], [-4.97, -69.47], [-4.82, -69.82], [-4.75, -69.85], [-4.5, -69.75], [-4.25, -69.85], [-4.18, -69.82], [-4.03, -69.47], [-3.68, -69.32], [-3.53, -68.97], [-3.0, -68.75], [-2.5, -68.96], [-2.0, -68.75], [-1.47, -68.97], [-1.32, -69.32], [-1.25, -69.35], [-1.0, -69.25], [-0.75, -69.35], [-0.5, -69.25], [-0.25, -69.35], [0.0, -69.25], [0.25, -69.35], [0.5, -69.25], [0.75, -69.35], [1.0, -69.25], [1.25, -69.35], [1.5, -69.25], [1.75, -69.35], [2.0, -69.25], [2.25, -69.35], [2.32, -69.32], [2.47, -68.97], [3.0, -68.75], [3.25, -68.85], [3.5, -68.75], [3.75, -68.85], [4.0, -68.75], [4.25, -68.85], [4.5, -68.75], [4.75, -68.85], [5.0, -68.75], [5.25, -68.85], [5.5, -68.75], [5.75, -68.85], [6.0, -68.75], [6.25, -68.85], [6.5, -68.75], [6.75, -68.85], [7.0, -68.75], [7.25, -68.85], [7.5, -68.75], [7.75, -68.85], [8.0, -68.75], [8.25, -68.85], [8.5, -68.75], [8.75, -68.85], [9.0, -68.75], [9.25, -68.85], [9.5, -68.75], [9.75, -68.85], [9.82, -68.82], [9.97, -68.47], [10.5, -68.25], [10.75, -68.35], [11.0, -68.25], [11.25, -68.35], [11.5, -68.25], [11.75, -68.35], [12.0, -68.25], [12.25, -68.35], [12.5, -68.25], [12.75, -68.35], [13.0, -68.25], [13.25, -68.35], [13.5, -68.25], [13.75, -68.35], [14.0, -68.25], [14.25, -68.35], [14.5, -68.25], [14.75, -68.35], [15.0, -68.25], [15.25, -68.35], [15.5, -68.25], [15.75, -68.35], [16.0, -68.25], [16.25, -68.35], [16.5, -68.25], [16.75, -68.35], [17.0, -68.25], [17.25, -68.35], [17.5, -68.25], [18.03, -68.47], [18.25, -69.0], [18.03, -69.53], [17.5, -69.75], [17.25, -69.65], [17.18, -69.68], [17.03, -70.03], [16.5, -70.25], [16.25, -70.15], [16.0, -70.25], [15.75, -70.15], [15.68, -70.18], [15.53, -70.53], [15.0, -70.75], [14.75, -70.65], [14.5, -70.75], [14.25, -70.65], [14.0, -70.75], [13.75, -70.65], [13.68, -70.68], [13.53, -71.03], [13.0, -71.25], [12.75, -71.15], [12.68, -71.18], [12.53, -71.53], [12.0, -71.75], [11.75, -71.65], [11.5, -71.75], [11.25, -71.65], [11.0, -71.75], [10.75, -71.65], [10.5, -71.75], [10.25, -71.65], [10.0, -71.75], [9.75, -71.65], [9.5, -71.75], [9.25, -71.65], [9.0, -71.75], [8.75, -71.65], [8.5, -71.75], [8.25, -71.65], [8.18, -71.68], [8.03, -72.03], [7.5, -72.25], [7.25, -72.15], [7.0, -72.25], [6.75, -72.15], [6.5, -72.25], [6.25, -72.15], [6.0, -72.25], [5.75, -72.15], [5.5, -72.25], [5.25, -72.15], [5.0, -72.25], [4.75, -72.15], [4.5, -72.25], [4.25, -72.15], [4.0, -72.25], [3.75, -72.15], [3.5, -72.25], [3.25, -72.15], [3.0, -72.25], [2.75, -72.15], [2.5, -72.25], [2.25, -72.15], [2.0, -72.25], [1.75, -72.15], [1.5, -72.25], [1.25, -72.15], [1.0, -72.25], [0.75, -72.15], [0.5, -72.25], [0.0, -72.04], [-0.5, -72.25], [-0.75, -72.15], [-1.0, -72.25], [-1.25, -72.15], [-1.5, -72.25], [-1.75, -72.15], [-2.0, -72.25], [-2.25, -72.15], [-2.5, -72.25], [-3.03, -72.03], [-3.18, -71.68], [-3.25, -71.65], [-3.32, -71.68], [-3.47, -72.03], [-4.0, -72.25], [-4.25, -72.15], [-4.5, -72.25], [-4.75, -72.15], [-5.0, -72.25], [-5.53, -72.03], [-5.68, -71.68], [-5.75, -71.65], [-5.82, -71.68], [-5.97, -72.03], [-6.5, -72.25], [-7.03, -72.03], [-7.18, -71.68], [-7.53, -71.53], [-7.68, -71.18], [-8.03, -71.03], [-8.25, -70.5]]]]}, "2018-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, -70.5], [-8.03, -69.97], [-7.68, -69.82], [-7.53, -69.47], [-7.0, -69.25], [-6.75, -69.35], [-6.5, -69.25], [-6.25, -69.35], [-6.0, -69.25], [-5.75, -69.35], [-5.5, -69.25], [-4.97, -69.47], [-4.82, -69.82], [-4.75, -69.85], [-4.5, -69.75], [-4.25, -69.85], [-4.18, -69.82], [-4.03, -69.47], [-3.68, -69.32], [-3.53, -68.97], [-3.0, -68.75], [-2.5, -68.96], [-2.0, -68.75], [-1.47, -68.97], [-1.32, -69.32], [-1.25, -69.35], [-1.0, -69.25], [-0.75, -69.35], [-0.5, -69.25], [-0.25, -69.35], [0.0, -69.25], [0.25, -69.35], [0.5, -69.25], [0.75, -69.35], [1.0, -69.25], [1.25, -69.35], [1.5, -69.25], [1.75, -69.35], [2.0, -69.25], [2.25, -69.35], [2.32, -69.32], [2.47, -68.97], [3.0, -68.75], [3.25, -68.85], [3.5, -68.75], [3.75, -68.85], [4.0, -68.75], [4.25, -68.85], [4.5, -68.75], [4.75, -68.85], [5.0, -68.75], [5.25, -68.85], [5.5, -68.75], [5.75, -68.85], [6.0, -68.75], [6.25, -68.85], [6.5, -68.75], [6.75, -68.85], [7.0, -68.75], [7.25, -68.85], [7.5, -68.75], [7.75, -68.85], [8.0, -68.75], [8.25, -68.85], [8.5, -68.75], [8.75, -68.85], [9.0, -68.75], [9.25, -68.85], [9.5, -68.75], [9.75, -68.85], [9.82, -68.82], [9.97, -68.47], [10.5, -68.25], [10.75, -68.35], [11.0, -68.25], [11.25, -68.35], [11.5, -68.25], [11.75, -68.35], [12.0, -68.25], [12.25, -68.35], [12.5, -68.25], [12.75, -68.35], [13.0, -68.25], [13.25, -68.35], [13.5, -68.25], [13.75, -68.35], [14.0, -68.25], [14.25, -68.35], [14.5, -68.25], [14.75, -68.35], [15.0, -68.25], [15.25, -68.35], [15.5, -68.25], [15.75, -68.35], [16.0, -68.25], [16.25, -68.35], [16.5, -68.25], [16.75, -68.35], [17.0, -68.25], [17.25, -68.35], [17.5, -68.25], [18.03, -68.47], [18.25, -69.0], [18.03, -69.53], [17.5, -69.75], [17.25, -69.65], [17.18, -69.68], [17.03, -70.03], [16.5, -70.25], [16.25, -70.15], [16.0, -70.25], [15.75, -70.15], [15.68, -70.18], [15.53, -70.53], [15.0, -70.75], [14.75, -70.65], [14.5, -70.75], [14.25, -70.65], [14.0, -70.75], [13.75, -70.65], [13.68, -70.68], [13.53, -71.03], [13.0, -71.25], [12.75, -71.15], [12.68, -71.18], [12.53, -71.53], [12.0, -71.75], [11.75, -71.65], [11.5, -71.75], [11.25, -71.65], [11.0, -71.75], [10.75, -71.65], [10.5, -71.75], [10.25, -71.65], [10.0, -71.75], [9.75, -71.65], [9.5, -71.75], [9.25, -71.65], [9.0, -71.75], [8.75, -71.65], [8.5, -71.75], [8.25, -71.65], [8.18, -71.68], [8.03, -72.03], [7.5, -72.25], [7.25, -72.15], [7.0, -72.25], [6.75, -72.15], [6.5, -72.25], [6.25, -72.15], [6.0, -72.25], [5.75, -72.15], [5.5, -72.25], [5.25, -72.15], [5.0, -72.25], [4.75, -72.15], [4.5, -72.25], [4.25, -72.15], [4.0, -72.25], [3.75, -72.15], [3.5, -72.25], [3.25, -72.15], [3.0, -72.25], [2.75, -72.15], [2.5, -72.25], [2.25, -72.15], [2.0, -72.25], [1.75, -72.15], [1.5, -72.25], [1.25, -72.15], [1.0, -72.25], [0.75, -72.15], [0.5, -72.25], [0.0, -72.04], [-0.5, -72.25], [-0.75, -72.15], [-1.0, -72.25], [-1.25, -72.15], [-1.5, -72.25], [-1.75, -72.15], [-2.0, -72.25], [-2.25, -72.15], [-2.5, -72.25], [-3.03, -72.03], [-3.18, -71.68], [-3.25, -71.65], [-3.32, -71.68], [-3.47, -72.03], [-4.0, -72.25], [-4.25, -72.15], [-4.5, -72.25], [-4.75, -72.15], [-5.0, -72.25], [-5.53, -72.03], [-5.68, -71.68], [-5.75, -71.65], [-5.82, -71.68], [-5.97, -72.03], [-6.5, -72.25], [-7.03, -72.03], [-7.18, -71.68], [-7.53, -71.53], [-7.68, -71.18], [-8.03, -71.03], [-8.25, -70.5]]]]}, "2018-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, -70.5], [-8.03, -69.97], [-7.68, -69.82], [-7.53, -69.47], [-7.0, -69.25], [-6.75, -69.35], [-6.5, -69.25], [-6.25, -69.35], [-6.0, -69.25], [-5.75, -69.35], [-5.5, -69.25], [-4.97, -69.47], [-4.82, -69.82], [-4.75, -69.85], [-4.5, -69.75], [-4.25, -69.85], [-4.18, -69.82], [-4.03, -69.47], [-3.68, -69.32], [-3.53, -68.97], [-3.0, -68.75], [-2.5, -68.96], [-2.0, -68.75], [-1.47, -68.97], [-1.32, -69.32], [-1.25, -69.35], [-1.0, -69.25], [-0.75, -69.35], [-0.5, -69.25], [-0.25, -69.35], [0.0, -69.25], [0.25, -69.35], [0.5, -69.25], [0.75, -69.35], [1.0, -69.25], [1.25, -69.35], [1.5, -69.25], [1.75, -69.35], [2.0, -69.25], [2.25, -69.35], [2.32, -69.32], [2.47, -68.97], [3.0, -68.75], [3.25, -68.85], [3.5, -68.75], [3.75, -68.85], [4.0, -68.75], [4.25, -68.85], [4.5, -68.75], [4.75, -68.85], [5.0, -68.75], [5.25, -68.85], [5.5, -68.75], [5.75, -68.85], [6.0, -68.75], [6.25, -68.85], [6.5, -68.75], [6.75, -68.85], [7.0, -68.75], [7.25, -68.85], [7.5, -68.75], [7.75, -68.85], [8.0, -68.75], [8.25, -68.85], [8.5, -68.75], [8.75, -68.85], [9.0, -68.75], [9.25, -68.85], [9.5, -68.75], [9.75, -68.85], [9.82, -68.82], [9.97, -68.47], [10.5, -68.25], [10.75, -68.35], [11.0, -68.25], [11.25, -68.35], [11.5, -68.25], [11.75, -68.35], [12.0, -68.25], [12.25, -68.35], [12.5, -68.25], [12.75, -68.35], [13.0, -68.25], [13.25, -68.35], [13.5, -68.25], [13.75, -68.35], [14.0, -68.25], [14.25, -68.35], [14.5, -68.25], [14.75, -68.35], [15.0, -68.25], [15.25, -68.35], [15.5, -68.25], [15.75, -68.35], [16.0, -68.25], [16.25, -68.35], [16.5, -68.25], [16.75, -68.35], [17.0, -68.25], [17.25, -68.35], [17.5, -68.25], [18.03, -68.47], [18.25, -69.0], [18.03, -69.53], [17.5, -69.75], [17.25, -69.65], [17.18, -69.68], [17.03, -70.03], [16.5, -70.25], [16.25, -70.15], [16.0, -70.25], [15.75, -70.15], [15.68, -70.18], [15.53, -70.53], [15.0, -70.75], [14.75, -70.65], [14.5, -70.75], [14.25, -70.65], [14.0, -70.75], [13.75, -70.65], [13.68, -70.68], [13.53, -71.03], [13.0, -71.25], [12.75, -71.15], [12.68, -71.18], [12.53, -71.53], [12.0, -71.75], [11.75, -71.65], [11.5, -71.75], [11.25, -71.65], [11.0, -71.75], [10.75, -71.65], [10.5, -71.75], [10.25, -71.65], [10.0, -71.75], [9.75, -71.65], [9.5, -71.75], [9.25, -71.65], [9.0, -71.75], [8.75, -71.65], [8.5, -71.75], [8.25, -71.65], [8.18, -71.68], [8.03, -72.03], [7.5, -72.25], [7.25, -72.15], [7.0, -72.25], [6.75, -72.15], [6.5, -72.25], [6.25, -72.15], [6.0, -72.25], [5.75, -72.15], [5.5, -72.25], [5.25, -72.15], [5.0, -72.25], [4.75, -72.15], [4.5, -72.25], [4.25, -72.15], [4.0, -72.25], [3.75, -72.15], [3.5, -72.25], [3.25, -72.15], [3.0, -72.25], [2.75, -72.15], [2.5, -72.25], [2.25, -72.15], [2.0, -72.25], [1.75, -72.15], [1.5, -72.25], [1.25, -72.15], [1.0, -72.25], [0.75, -72.15], [0.5, -72.25], [0.0, -72.04], [-0.5, -72.25], [-0.75, -72.15], [-1.0, -72.25], [-1.25, -72.15], [-1.5, -72.25], [-1.75, -72.15], [-2.0, -72.25], [-2.25, -72.15], [-2.5, -72.25], [-3.03, -72.03], [-3.18, -71.68], [-3.25, -71.65], [-3.32, -71.68], [-3.47, -72.03], [-4.0, -72.25], [-4.25, -72.15], [-4.5, -72.25], [-4.75, -72.15], [-5.0, -72.25], [-5.53, -72.03], [-5.68, -71.68], [-5.75, -71.65], [-5.82, -71.68], [-5.97, -72.03], [-6.5, -72.25], [-7.03, -72.03], [-7.18, -71.68], [-7.53, -71.53], [-7.68, -71.18], [-8.03, -71.03], [-8.25, -70.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.912909487538855}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.852792869229908}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-10.521058417356187, -10.060477943614273, -9.880655870828434]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-8.317880489864763, -8.212917058015819, -6.907925138532221]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.74157414946639, 8.950112388023165, 8.866692070200177]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.189955081778066, 12.458892715966101, 13.912909487538855]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5919954485181353, 1.6595405230237634, 1.6638965667206669]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9880766189888044, 1.9535483464940748, 2.023482143241184]}}