{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:40.592674", "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-Feb-11_to_2013-Feb-13_344.0_74.5"}, "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": 2013020001667}, "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 11 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 13 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": "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": 83151.0449424768}, "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": ["Greenland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arctic-Ocean", "Greenland/Iceland"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": ["Greenland Sea"]}, "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": 74.5}, "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": 344.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 337.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 69.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 77.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.15, 70.75], [-23.25, 71.0], [-23.03, 71.53], [-22.62, 71.7], [-22.75, 72.0], [-22.53, 72.53], [-22.0, 72.75], [-21.75, 72.65], [-21.5, 72.75], [-21.25, 72.65], [-21.18, 72.68], [-21.04, 73.0], [-21.25, 73.5], [-21.03, 74.03], [-20.68, 74.18], [-20.53, 74.53], [-20.18, 74.68], [-20.03, 75.03], [-19.5, 75.25], [-19.0, 75.04], [-18.5, 75.25], [-18.25, 75.15], [-18.0, 75.25], [-17.75, 75.15], [-17.68, 75.18], [-17.53, 75.53], [-17.0, 75.75], [-16.75, 75.65], [-16.5, 75.75], [-16.25, 75.65], [-16.18, 75.68], [-16.03, 76.03], [-15.5, 76.25], [-15.25, 76.15], [-15.18, 76.18], [-15.03, 76.53], [-14.5, 76.75], [-14.25, 76.65], [-14.0, 76.75], [-13.75, 76.65], [-13.68, 76.68], [-13.53, 77.03], [-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], [-10.18, 77.18], [-10.03, 77.53], [-9.5, 77.75], [-8.97, 77.53], [-8.75, 77.0], [-8.85, 76.75], [-8.75, 76.5], [-8.97, 75.97], [-9.5, 75.75], [-9.75, 75.85], [-9.82, 75.82], [-9.97, 75.47], [-10.5, 75.25], [-10.75, 75.35], [-10.82, 75.32], [-10.97, 74.97], [-11.5, 74.75], [-11.75, 74.85], [-12.0, 74.75], [-12.25, 74.85], [-12.32, 74.82], [-12.47, 74.47], [-12.82, 74.32], [-12.97, 73.97], [-13.5, 73.75], [-13.75, 73.85], [-14.0, 73.75], [-14.25, 73.85], [-14.32, 73.82], [-14.47, 73.47], [-15.0, 73.25], [-15.25, 73.35], [-15.32, 73.32], [-15.47, 72.97], [-16.0, 72.75], [-16.25, 72.85], [-16.32, 72.82], [-16.47, 72.47], [-17.0, 72.25], [-17.25, 72.35], [-17.32, 72.32], [-17.47, 71.97], [-18.0, 71.75], [-18.25, 71.85], [-18.32, 71.82], [-18.47, 71.47], [-19.0, 71.25], [-19.25, 71.35], [-19.5, 71.25], [-19.75, 71.35], [-20.0, 71.25], [-20.25, 71.35], [-20.32, 71.32], [-20.47, 70.97], [-20.82, 70.82], [-20.85, 70.75], [-20.75, 70.5], [-20.97, 69.97], [-21.5, 69.75], [-21.75, 69.85], [-21.82, 69.82], [-21.97, 69.47], [-22.5, 69.25], [-23.03, 69.47], [-23.25, 70.0], [-23.15, 70.25], [-23.25, 70.5], [-23.15, 70.75]]]]}, "2013-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.15, 70.75], [-23.25, 71.0], [-23.03, 71.53], [-22.62, 71.7], [-22.75, 72.0], [-22.53, 72.53], [-22.0, 72.75], [-21.75, 72.65], [-21.5, 72.75], [-21.25, 72.65], [-21.18, 72.68], [-21.04, 73.0], [-21.25, 73.5], [-21.03, 74.03], [-20.68, 74.18], [-20.53, 74.53], [-20.18, 74.68], [-20.03, 75.03], [-19.5, 75.25], [-19.0, 75.04], [-18.5, 75.25], [-18.25, 75.15], [-18.0, 75.25], [-17.75, 75.15], [-17.68, 75.18], [-17.53, 75.53], [-17.0, 75.75], [-16.75, 75.65], [-16.5, 75.75], [-16.25, 75.65], [-16.18, 75.68], [-16.03, 76.03], [-15.5, 76.25], [-15.25, 76.15], [-15.18, 76.18], [-15.03, 76.53], [-14.5, 76.75], [-14.25, 76.65], [-14.0, 76.75], [-13.75, 76.65], [-13.68, 76.68], [-13.53, 77.03], [-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], [-10.18, 77.18], [-10.03, 77.53], [-9.5, 77.75], [-8.97, 77.53], [-8.75, 77.0], [-8.85, 76.75], [-8.75, 76.5], [-8.97, 75.97], [-9.5, 75.75], [-9.75, 75.85], [-9.82, 75.82], [-9.97, 75.47], [-10.5, 75.25], [-10.75, 75.35], [-10.82, 75.32], [-10.97, 74.97], [-11.5, 74.75], [-11.75, 74.85], [-12.0, 74.75], [-12.25, 74.85], [-12.32, 74.82], [-12.47, 74.47], [-12.82, 74.32], [-12.97, 73.97], [-13.5, 73.75], [-13.75, 73.85], [-14.0, 73.75], [-14.25, 73.85], [-14.32, 73.82], [-14.47, 73.47], [-15.0, 73.25], [-15.25, 73.35], [-15.32, 73.32], [-15.47, 72.97], [-16.0, 72.75], [-16.25, 72.85], [-16.32, 72.82], [-16.47, 72.47], [-17.0, 72.25], [-17.25, 72.35], [-17.32, 72.32], [-17.47, 71.97], [-18.0, 71.75], [-18.25, 71.85], [-18.32, 71.82], [-18.47, 71.47], [-19.0, 71.25], [-19.25, 71.35], [-19.5, 71.25], [-19.75, 71.35], [-20.0, 71.25], [-20.25, 71.35], [-20.32, 71.32], [-20.47, 70.97], [-20.82, 70.82], [-20.85, 70.75], [-20.75, 70.5], [-20.97, 69.97], [-21.5, 69.75], [-21.75, 69.85], [-21.82, 69.82], [-21.97, 69.47], [-22.5, 69.25], [-23.03, 69.47], [-23.25, 70.0], [-23.15, 70.25], [-23.25, 70.5], [-23.15, 70.75]]]]}, "2013-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.15, 70.75], [-23.25, 71.0], [-23.03, 71.53], [-22.62, 71.7], [-22.75, 72.0], [-22.53, 72.53], [-22.0, 72.75], [-21.75, 72.65], [-21.5, 72.75], [-21.25, 72.65], [-21.18, 72.68], [-21.04, 73.0], [-21.25, 73.5], [-21.03, 74.03], [-20.68, 74.18], [-20.53, 74.53], [-20.18, 74.68], [-20.03, 75.03], [-19.5, 75.25], [-19.0, 75.04], [-18.5, 75.25], [-18.25, 75.15], [-18.0, 75.25], [-17.75, 75.15], [-17.68, 75.18], [-17.53, 75.53], [-17.0, 75.75], [-16.75, 75.65], [-16.5, 75.75], [-16.25, 75.65], [-16.18, 75.68], [-16.03, 76.03], [-15.5, 76.25], [-15.25, 76.15], [-15.18, 76.18], [-15.03, 76.53], [-14.5, 76.75], [-14.25, 76.65], [-14.0, 76.75], [-13.75, 76.65], [-13.68, 76.68], [-13.53, 77.03], [-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], [-10.18, 77.18], [-10.03, 77.53], [-9.5, 77.75], [-8.97, 77.53], [-8.75, 77.0], [-8.85, 76.75], [-8.75, 76.5], [-8.97, 75.97], [-9.5, 75.75], [-9.75, 75.85], [-9.82, 75.82], [-9.97, 75.47], [-10.5, 75.25], [-10.75, 75.35], [-10.82, 75.32], [-10.97, 74.97], [-11.5, 74.75], [-11.75, 74.85], [-12.0, 74.75], [-12.25, 74.85], [-12.32, 74.82], [-12.47, 74.47], [-12.82, 74.32], [-12.97, 73.97], [-13.5, 73.75], [-13.75, 73.85], [-14.0, 73.75], [-14.25, 73.85], [-14.32, 73.82], [-14.47, 73.47], [-15.0, 73.25], [-15.25, 73.35], [-15.32, 73.32], [-15.47, 72.97], [-16.0, 72.75], [-16.25, 72.85], [-16.32, 72.82], [-16.47, 72.47], [-17.0, 72.25], [-17.25, 72.35], [-17.32, 72.32], [-17.47, 71.97], [-18.0, 71.75], [-18.25, 71.85], [-18.32, 71.82], [-18.47, 71.47], [-19.0, 71.25], [-19.25, 71.35], [-19.5, 71.25], [-19.75, 71.35], [-20.0, 71.25], [-20.25, 71.35], [-20.32, 71.32], [-20.47, 70.97], [-20.82, 70.82], [-20.85, 70.75], [-20.75, 70.5], [-20.97, 69.97], [-21.5, 69.75], [-21.75, 69.85], [-21.82, 69.82], [-21.97, 69.47], [-22.5, 69.25], [-23.03, 69.47], [-23.25, 70.0], [-23.15, 70.25], [-23.25, 70.5], [-23.15, 70.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.145432576958456}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 11.054521615409646}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-5.068943621380754, -4.8443100377418205, -5.723962053535331]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-2.5417234399423023, -2.958275055258696, -3.185326250190144]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.186916154474282, 11.476446068979726, 10.500202622774943]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.797739249527979, 13.145432576958456, 12.964261680572747]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7808977773770862, 1.8388289761927616, 1.7019472979991033]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0044927221693536, 2.130285460604504, 2.002655565527371]}}