{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:32.978071", "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": "2023-Jul-08_to_2023-Jul-11_339.5_64.0"}, "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": 2023070001664}, "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": "July 08 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 11 2023"}, "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": "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": 51994.051564853056}, "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": ["Iceland"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": ["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": 64.0}, "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": 339.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "339.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 336.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 344.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 63.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 65.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-24.03, 65.03], [-23.5, 65.25], [-23.25, 65.15], [-23.0, 65.25], [-22.75, 65.15], [-22.5, 65.25], [-22.25, 65.15], [-22.0, 65.25], [-21.75, 65.15], [-21.5, 65.25], [-21.25, 65.15], [-21.18, 65.18], [-21.03, 65.53], [-20.5, 65.75], [-20.25, 65.65], [-20.18, 65.68], [-20.03, 66.03], [-19.5, 66.25], [-19.25, 66.15], [-19.0, 66.25], [-18.75, 66.15], [-18.5, 66.25], [-18.25, 66.15], [-18.0, 66.25], [-17.47, 66.03], [-17.32, 65.68], [-16.97, 65.53], [-16.82, 65.18], [-16.5, 65.04], [-16.0, 65.25], [-15.75, 65.15], [-15.5, 65.25], [-14.97, 65.03], [-14.75, 64.5], [-14.97, 63.97], [-15.5, 63.75], [-15.75, 63.85], [-15.82, 63.82], [-15.97, 63.47], [-16.5, 63.25], [-16.75, 63.35], [-17.0, 63.25], [-17.25, 63.35], [-17.5, 63.25], [-17.75, 63.35], [-18.0, 63.25], [-18.25, 63.35], [-18.32, 63.32], [-18.47, 62.97], [-19.0, 62.75], [-19.25, 62.85], [-19.5, 62.75], [-19.75, 62.85], [-20.0, 62.75], [-20.53, 62.97], [-20.68, 63.32], [-20.75, 63.35], [-21.0, 63.25], [-21.25, 63.35], [-21.5, 63.25], [-21.75, 63.35], [-22.0, 63.25], [-22.53, 63.47], [-22.68, 63.82], [-22.75, 63.85], [-23.0, 63.75], [-23.25, 63.85], [-23.5, 63.75], [-24.03, 63.97], [-24.25, 64.5], [-24.03, 65.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-22.029999999999973, 65.03], [-21.5, 65.25], [-21.25, 65.15], [-21.180000000000007, 65.18], [-21.029999999999973, 65.53], [-20.5, 65.75], [-20.25, 65.65], [-20.180000000000007, 65.68], [-20.029999999999973, 66.03], [-19.5, 66.25], [-19.25, 66.15], [-19.0, 66.25], [-18.75, 66.15], [-18.5, 66.25], [-18.25, 66.15], [-18.0, 66.25], [-17.470000000000027, 66.03], [-17.319999999999993, 65.68], [-16.970000000000027, 65.53], [-16.819999999999993, 65.18], [-16.5, 65.04], [-16.0, 65.25], [-15.75, 65.15], [-15.5, 65.25], [-14.970000000000027, 65.03], [-14.75, 64.5], [-14.970000000000027, 63.97], [-15.5, 63.75], [-15.75, 63.85], [-15.819999999999993, 63.82], [-15.970000000000027, 63.47], [-16.5, 63.25], [-16.75, 63.35], [-17.0, 63.25], [-17.25, 63.35], [-17.5, 63.25], [-17.75, 63.35], [-18.0, 63.25], [-18.25, 63.35], [-18.319999999999993, 63.32], [-18.470000000000027, 62.97], [-19.0, 62.75], [-19.25, 62.85], [-19.5, 62.75], [-19.75, 62.85], [-20.0, 62.75], [-20.529999999999973, 62.97], [-20.680000000000007, 63.32], [-20.75, 63.35], [-21.0, 63.25], [-21.25, 63.35], [-21.5, 63.25], [-21.75, 63.35], [-22.0, 63.25], [-22.529999999999973, 63.47], [-22.75, 64.0], [-22.529999999999973, 64.53], [-22.180000000000007, 64.68], [-22.029999999999973, 65.03]]]]}, "2023-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.5, 63.75], [-24.029999999999973, 63.97], [-24.25, 64.5], [-24.029999999999973, 65.03], [-23.5, 65.25], [-23.25, 65.15], [-23.0, 65.25], [-22.75, 65.15], [-22.5, 65.25], [-22.25, 65.15], [-22.0, 65.25], [-21.75, 65.15], [-21.5, 65.25], [-21.25, 65.15], [-21.180000000000007, 65.18], [-21.029999999999973, 65.53], [-20.5, 65.75], [-20.25, 65.65], [-20.180000000000007, 65.68], [-20.029999999999973, 66.03], [-19.5, 66.25], [-19.25, 66.15], [-19.0, 66.25], [-18.75, 66.15], [-18.5, 66.25], [-18.25, 66.15], [-18.0, 66.25], [-17.470000000000027, 66.03], [-17.319999999999993, 65.68], [-16.970000000000027, 65.53], [-16.819999999999993, 65.18], [-16.5, 65.04], [-16.0, 65.25], [-15.75, 65.15], [-15.5, 65.25], [-14.970000000000027, 65.03], [-14.75, 64.5], [-14.970000000000027, 63.97], [-15.5, 63.75], [-15.75, 63.85], [-15.819999999999993, 63.82], [-15.970000000000027, 63.47], [-16.5, 63.25], [-16.75, 63.35], [-17.0, 63.25], [-17.25, 63.35], [-17.5, 63.25], [-17.75, 63.35], [-18.0, 63.25], [-18.25, 63.35], [-18.319999999999993, 63.32], [-18.470000000000027, 62.97], [-19.0, 62.75], [-19.25, 62.85], [-19.5, 62.75], [-19.75, 62.85], [-20.0, 62.75], [-20.529999999999973, 62.97], [-20.680000000000007, 63.32], [-20.75, 63.35], [-21.0, 63.25], [-21.25, 63.35], [-21.5, 63.25], [-21.75, 63.35], [-22.0, 63.25], [-22.529999999999973, 63.47], [-22.680000000000007, 63.82], [-22.75, 63.85], [-23.0, 63.75], [-23.25, 63.85], [-23.5, 63.75]]]]}, "2023-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.5, 63.75], [-24.029999999999973, 63.97], [-24.25, 64.5], [-24.029999999999973, 65.03], [-23.5, 65.25], [-23.25, 65.15], [-23.0, 65.25], [-22.75, 65.15], [-22.5, 65.25], [-22.25, 65.15], [-22.0, 65.25], [-21.75, 65.15], [-21.5, 65.25], [-21.25, 65.15], [-21.180000000000007, 65.18], [-21.029999999999973, 65.53], [-20.5, 65.75], [-20.25, 65.65], [-20.180000000000007, 65.68], [-20.029999999999973, 66.03], [-19.5, 66.25], [-19.25, 66.15], [-19.0, 66.25], [-18.75, 66.15], [-18.5, 66.25], [-18.25, 66.15], [-18.0, 66.25], [-17.470000000000027, 66.03], [-17.319999999999993, 65.68], [-16.970000000000027, 65.53], [-16.819999999999993, 65.18], [-16.5, 65.04], [-16.0, 65.25], [-15.75, 65.15], [-15.5, 65.25], [-14.970000000000027, 65.03], [-14.75, 64.5], [-14.970000000000027, 63.97], [-15.5, 63.75], [-15.75, 63.85], [-15.819999999999993, 63.82], [-15.970000000000027, 63.47], [-16.5, 63.25], [-16.75, 63.35], [-17.0, 63.25], [-17.25, 63.35], [-17.5, 63.25], [-17.75, 63.35], [-18.0, 63.25], [-18.25, 63.35], [-18.319999999999993, 63.32], [-18.470000000000027, 62.97], [-19.0, 62.75], [-19.25, 62.85], [-19.5, 62.75], [-19.75, 62.85], [-20.0, 62.75], [-20.529999999999973, 62.97], [-20.680000000000007, 63.32], [-20.75, 63.35], [-21.0, 63.25], [-21.25, 63.35], [-21.5, 63.25], [-21.75, 63.35], [-22.0, 63.25], [-22.529999999999973, 63.47], [-22.680000000000007, 63.82], [-22.75, 63.85], [-23.0, 63.75], [-23.25, 63.85], [-23.5, 63.75]]]]}, "2023-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.5, 63.75], [-24.029999999999973, 63.97], [-24.25, 64.5], [-24.029999999999973, 65.03], [-23.5, 65.25], [-23.25, 65.15], [-23.0, 65.25], [-22.75, 65.15], [-22.5, 65.25], [-22.25, 65.15], [-22.0, 65.25], [-21.470000000000027, 65.03], [-21.319999999999993, 64.68], [-21.25, 64.65], [-21.0, 64.75], [-20.75, 64.65], [-20.5, 64.75], [-19.970000000000027, 64.53], [-19.819999999999993, 64.18], [-19.470000000000027, 64.03], [-19.25, 63.5], [-19.470000000000027, 62.97], [-20.0, 62.75], [-20.529999999999973, 62.97], [-20.680000000000007, 63.32], [-20.75, 63.35], [-21.0, 63.25], [-21.25, 63.35], [-21.5, 63.25], [-21.75, 63.35], [-22.0, 63.25], [-22.529999999999973, 63.47], [-22.680000000000007, 63.82], [-22.75, 63.85], [-23.0, 63.75], [-23.25, 63.85], [-23.5, 63.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.773613421426035}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.6009589289105848}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.55811013286393, 13.513667260224736, 11.738743353388656, 13.417145046313124]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.197419886012597, 17.507468354571188, 14.586912422726755, 14.639139460861031]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.1211474462173814, 4.841102404650983, 3.0742797361343603, 2.3752139132060646]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.9233443644452564, 6.773613421426035, 5.449799203140174, 2.8804393639751424]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6080247483427488, 2.5976931038958457, 1.73361671976357, 1.9014701483076526]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.156764433061013, 3.6540055516645027, 2.4535875974890367, 2.0464717750401173]}}