{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:52.446133", "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": "2015-Sep-05_to_2015-Sep-10_343.0_66.0"}, "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": 2015090001486}, "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": "September 05 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 10 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 185486.1446157083}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/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": ["Greenland Sea", "North 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": 66.0}, "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": 343.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 331.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 345.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 63.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 69.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.53, 63.97], [-17.75, 64.5], [-17.53, 65.03], [-17.0, 65.25], [-16.75, 65.15], [-16.5, 65.25], [-16.25, 65.15], [-16.0, 65.25], [-15.47, 65.03], [-15.25, 64.5], [-15.47, 63.97], [-16.0, 63.75], [-16.25, 63.85], [-16.5, 63.75], [-16.75, 63.85], [-17.0, 63.75], [-17.53, 63.97]]]]}, "2015-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.53, 66.53], [-18.0, 66.75], [-17.5, 66.54], [-17.0, 66.75], [-16.75, 66.65], [-16.5, 66.75], [-16.25, 66.65], [-16.0, 66.75], [-15.75, 66.65], [-15.5, 66.75], [-14.97, 66.53], [-14.82, 66.18], [-14.75, 66.15], [-14.5, 66.25], [-13.97, 66.03], [-13.75, 65.5], [-13.97, 64.97], [-14.5, 64.75], [-14.75, 64.85], [-15.0, 64.75], [-15.43, 64.93], [-15.25, 64.5], [-15.47, 63.97], [-16.0, 63.75], [-16.25, 63.85], [-16.5, 63.75], [-16.75, 63.85], [-17.0, 63.75], [-17.53, 63.97], [-17.75, 64.5], [-17.65, 64.75], [-17.68, 64.82], [-17.75, 64.85], [-18.0, 64.75], [-18.53, 64.97], [-18.75, 65.5], [-18.65, 65.75], [-18.75, 66.0], [-18.53, 66.53]], [[-16.0, 65.25], [-15.57, 65.07], [-15.68, 65.32], [-15.75, 65.35], [-16.0, 65.25]], [[-16.25, 65.35], [-16.32, 65.32], [-16.35, 65.25], [-16.32, 65.18], [-16.25, 65.15], [-16.0, 65.25], [-16.25, 65.35]]]]}, "2015-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-29.03, 67.53], [-28.5, 67.75], [-28.25, 67.65], [-28.18, 67.68], [-28.03, 68.03], [-27.5, 68.25], [-27.25, 68.15], [-27.0, 68.25], [-26.75, 68.15], [-26.5, 68.25], [-26.25, 68.15], [-26.18, 68.18], [-26.03, 68.53], [-25.5, 68.75], [-25.25, 68.65], [-25.0, 68.75], [-24.75, 68.65], [-24.5, 68.75], [-24.25, 68.65], [-24.0, 68.75], [-23.75, 68.65], [-23.5, 68.75], [-23.25, 68.65], [-23.18, 68.68], [-23.03, 69.03], [-22.5, 69.25], [-22.25, 69.15], [-22.0, 69.25], [-21.75, 69.15], [-21.5, 69.25], [-21.25, 69.15], [-21.18, 69.18], [-21.03, 69.53], [-20.5, 69.75], [-19.97, 69.53], [-19.82, 69.18], [-19.75, 69.15], [-19.5, 69.25], [-18.97, 69.03], [-18.75, 68.5], [-18.96, 68.0], [-18.82, 67.68], [-18.47, 67.53], [-18.25, 67.0], [-18.35, 66.75], [-18.32, 66.68], [-18.25, 66.65], [-18.18, 66.68], [-18.03, 67.03], [-17.68, 67.18], [-17.53, 67.53], [-17.0, 67.75], [-16.75, 67.65], [-16.5, 67.75], [-16.25, 67.65], [-16.0, 67.75], [-15.75, 67.65], [-15.5, 67.75], [-14.97, 67.53], [-14.82, 67.18], [-14.47, 67.03], [-14.32, 66.68], [-13.97, 66.53], [-13.75, 66.0], [-13.85, 65.75], [-13.75, 65.5], [-13.97, 64.97], [-14.5, 64.75], [-14.75, 64.85], [-15.0, 64.75], [-15.43, 64.93], [-15.25, 64.5], [-15.47, 63.97], [-16.0, 63.75], [-16.25, 63.85], [-16.5, 63.75], [-16.75, 63.85], [-17.0, 63.75], [-17.53, 63.97], [-17.68, 64.32], [-17.75, 64.35], [-18.0, 64.25], [-18.25, 64.35], [-18.5, 64.25], [-18.75, 64.35], [-18.87, 64.3], [-18.75, 64.0], [-18.97, 63.47], [-19.32, 63.32], [-19.47, 62.97], [-20.0, 62.75], [-20.25, 62.85], [-20.5, 62.75], [-21.03, 62.97], [-21.2, 63.38], [-21.5, 63.25], [-21.75, 63.35], [-22.0, 63.25], [-22.25, 63.35], [-22.5, 63.25], [-23.03, 63.47], [-23.25, 64.0], [-23.04, 64.5], [-23.25, 65.0], [-23.15, 65.25], [-23.18, 65.32], [-23.25, 65.35], [-23.5, 65.25], [-24.03, 65.47], [-24.25, 66.0], [-24.12, 66.3], [-24.25, 66.35], [-24.5, 66.25], [-24.75, 66.35], [-25.0, 66.25], [-25.25, 66.35], [-25.32, 66.32], [-25.47, 65.97], [-26.0, 65.75], [-26.25, 65.85], [-26.5, 65.75], [-26.75, 65.85], [-27.0, 65.75], [-27.25, 65.85], [-27.5, 65.75], [-27.75, 65.85], [-28.0, 65.75], [-28.25, 65.85], [-28.5, 65.75], [-29.03, 65.97], [-29.25, 66.5], [-29.15, 66.75], [-29.25, 67.0], [-29.03, 67.53]], [[-16.0, 65.25], [-15.57, 65.07], [-15.68, 65.32], [-15.75, 65.35], [-16.0, 65.25]], [[-16.25, 65.35], [-16.32, 65.32], [-16.35, 65.25], [-16.32, 65.18], [-16.25, 65.15], [-16.0, 65.25], [-16.25, 65.35]]]]}, "2015-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-29.03, 67.53], [-28.5, 67.75], [-28.25, 67.65], [-28.18, 67.68], [-28.03, 68.03], [-27.5, 68.25], [-27.25, 68.15], [-27.0, 68.25], [-26.75, 68.15], [-26.5, 68.25], [-26.25, 68.15], [-26.18, 68.18], [-26.03, 68.53], [-25.5, 68.75], [-25.25, 68.65], [-25.0, 68.75], [-24.75, 68.65], [-24.5, 68.75], [-24.25, 68.65], [-24.0, 68.75], [-23.75, 68.65], [-23.5, 68.75], [-23.25, 68.65], [-23.18, 68.68], [-23.03, 69.03], [-22.5, 69.25], [-22.25, 69.15], [-22.0, 69.25], [-21.75, 69.15], [-21.5, 69.25], [-21.25, 69.15], [-21.18, 69.18], [-21.03, 69.53], [-20.5, 69.75], [-20.25, 69.65], [-20.0, 69.75], [-19.47, 69.53], [-19.32, 69.18], [-18.97, 69.03], [-18.75, 68.5], [-18.96, 68.0], [-18.82, 67.68], [-18.75, 67.65], [-18.5, 67.75], [-18.25, 67.65], [-18.0, 67.75], [-17.75, 67.65], [-17.5, 67.75], [-17.25, 67.65], [-17.0, 67.75], [-16.75, 67.65], [-16.5, 67.75], [-16.25, 67.65], [-16.0, 67.75], [-15.75, 67.65], [-15.5, 67.75], [-15.25, 67.65], [-15.0, 67.75], [-14.75, 67.65], [-14.5, 67.75], [-13.97, 67.53], [-13.75, 67.0], [-13.96, 66.5], [-13.75, 66.0], [-13.85, 65.75], [-13.75, 65.5], [-13.97, 64.97], [-14.5, 64.75], [-14.75, 64.85], [-15.0, 64.75], [-15.53, 64.97], [-15.68, 65.32], [-15.75, 65.35], [-16.0, 65.25], [-16.25, 65.35], [-16.32, 65.32], [-16.35, 65.25], [-16.32, 65.18], [-15.97, 65.03], [-15.75, 64.5], [-15.97, 63.97], [-16.5, 63.75], [-17.03, 63.97], [-17.18, 64.32], [-17.25, 64.35], [-17.5, 64.25], [-17.75, 64.35], [-18.0, 64.25], [-18.25, 64.35], [-18.5, 64.25], [-18.75, 64.35], [-18.87, 64.3], [-18.75, 64.0], [-18.97, 63.47], [-19.32, 63.32], [-19.47, 62.97], [-20.0, 62.75], [-20.25, 62.85], [-20.5, 62.75], [-21.03, 62.97], [-21.2, 63.38], [-21.5, 63.25], [-21.75, 63.35], [-22.0, 63.25], [-22.25, 63.35], [-22.5, 63.25], [-23.03, 63.47], [-23.25, 64.0], [-23.04, 64.5], [-23.25, 65.0], [-23.15, 65.25], [-23.18, 65.32], [-23.25, 65.35], [-23.5, 65.25], [-24.03, 65.47], [-24.25, 66.0], [-24.12, 66.3], [-24.25, 66.35], [-24.5, 66.25], [-24.75, 66.35], [-24.82, 66.32], [-24.97, 65.97], [-25.5, 65.75], [-25.75, 65.85], [-26.0, 65.75], [-26.25, 65.85], [-26.5, 65.75], [-26.75, 65.85], [-27.0, 65.75], [-27.25, 65.85], [-27.5, 65.75], [-27.75, 65.85], [-28.0, 65.75], [-28.25, 65.85], [-28.5, 65.75], [-29.03, 65.97], [-29.25, 66.5], [-29.15, 66.75], [-29.25, 67.0], [-29.03, 67.53]]]]}, "2015-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-29.03, 67.53], [-28.5, 67.75], [-28.25, 67.65], [-28.18, 67.68], [-28.03, 68.03], [-27.5, 68.25], [-27.25, 68.15], [-27.0, 68.25], [-26.75, 68.15], [-26.5, 68.25], [-26.25, 68.15], [-26.18, 68.18], [-26.03, 68.53], [-25.5, 68.75], [-25.25, 68.65], [-25.0, 68.75], [-24.75, 68.65], [-24.5, 68.75], [-24.25, 68.65], [-24.0, 68.75], [-23.75, 68.65], [-23.5, 68.75], [-23.25, 68.65], [-23.18, 68.68], [-23.03, 69.03], [-22.5, 69.25], [-22.25, 69.15], [-22.0, 69.25], [-21.75, 69.15], [-21.5, 69.25], [-21.25, 69.15], [-21.18, 69.18], [-21.03, 69.53], [-20.5, 69.75], [-20.25, 69.65], [-20.0, 69.75], [-19.47, 69.53], [-19.32, 69.18], [-18.97, 69.03], [-18.75, 68.5], [-18.96, 68.0], [-18.82, 67.68], [-18.75, 67.65], [-18.5, 67.75], [-18.25, 67.65], [-18.0, 67.75], [-17.75, 67.65], [-17.5, 67.75], [-17.25, 67.65], [-17.0, 67.75], [-16.75, 67.65], [-16.5, 67.75], [-16.25, 67.65], [-16.0, 67.75], [-15.75, 67.65], [-15.5, 67.75], [-15.25, 67.65], [-15.0, 67.75], [-14.75, 67.65], [-14.5, 67.75], [-13.97, 67.53], [-13.75, 67.0], [-13.96, 66.5], [-13.75, 66.0], [-13.85, 65.75], [-13.75, 65.5], [-13.97, 64.97], [-14.5, 64.75], [-14.75, 64.85], [-15.0, 64.75], [-15.53, 64.97], [-15.68, 65.32], [-15.75, 65.35], [-16.0, 65.25], [-16.25, 65.35], [-16.32, 65.32], [-16.35, 65.25], [-16.32, 65.18], [-15.97, 65.03], [-15.75, 64.5], [-15.97, 63.97], [-16.5, 63.75], [-17.03, 63.97], [-17.18, 64.32], [-17.25, 64.35], [-17.5, 64.25], [-17.75, 64.35], [-18.0, 64.25], [-18.25, 64.35], [-18.5, 64.25], [-18.75, 64.35], [-18.87, 64.3], [-18.75, 64.0], [-18.97, 63.47], [-19.32, 63.32], [-19.47, 62.97], [-20.0, 62.75], [-20.25, 62.85], [-20.5, 62.75], [-21.03, 62.97], [-21.2, 63.38], [-21.5, 63.25], [-21.75, 63.35], [-22.0, 63.25], [-22.25, 63.35], [-22.5, 63.25], [-23.03, 63.47], [-23.25, 64.0], [-23.04, 64.5], [-23.25, 65.0], [-23.15, 65.25], [-23.18, 65.32], [-23.25, 65.35], [-23.5, 65.25], [-24.03, 65.47], [-24.25, 66.0], [-24.12, 66.3], [-24.25, 66.35], [-24.5, 66.25], [-24.75, 66.35], [-24.82, 66.32], [-24.97, 65.97], [-25.5, 65.75], [-25.75, 65.85], [-26.0, 65.75], [-26.25, 65.85], [-26.5, 65.75], [-26.75, 65.85], [-27.0, 65.75], [-27.25, 65.85], [-27.5, 65.75], [-27.75, 65.85], [-28.0, 65.75], [-28.25, 65.85], [-28.5, 65.75], [-29.03, 65.97], [-29.25, 66.5], [-29.15, 66.75], [-29.25, 67.0], [-29.03, 67.53]]]]}, "2015-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-28.0, 67.75], [-27.75, 67.65], [-27.5, 67.75], [-27.25, 67.65], [-27.18, 67.68], [-27.03, 68.03], [-26.5, 68.25], [-26.25, 68.15], [-26.0, 68.25], [-25.75, 68.15], [-25.5, 68.25], [-25.25, 68.15], [-25.0, 68.25], [-24.75, 68.15], [-24.68, 68.18], [-24.53, 68.53], [-24.0, 68.75], [-23.75, 68.65], [-23.5, 68.75], [-23.25, 68.65], [-23.18, 68.68], [-23.03, 69.03], [-22.5, 69.25], [-22.25, 69.15], [-22.0, 69.25], [-21.75, 69.15], [-21.5, 69.25], [-21.25, 69.15], [-21.18, 69.18], [-21.03, 69.53], [-20.5, 69.75], [-20.25, 69.65], [-20.0, 69.75], [-19.47, 69.53], [-19.32, 69.18], [-18.97, 69.03], [-18.75, 68.5], [-18.96, 68.0], [-18.82, 67.68], [-18.75, 67.65], [-18.5, 67.75], [-18.25, 67.65], [-18.0, 67.75], [-17.75, 67.65], [-17.5, 67.75], [-17.25, 67.65], [-17.0, 67.75], [-16.75, 67.65], [-16.5, 67.75], [-16.25, 67.65], [-16.0, 67.75], [-15.75, 67.65], [-15.5, 67.75], [-15.25, 67.65], [-15.0, 67.75], [-14.75, 67.65], [-14.5, 67.75], [-13.97, 67.53], [-13.75, 67.0], [-13.97, 66.47], [-14.32, 66.32], [-14.35, 66.25], [-14.32, 66.18], [-13.97, 66.03], [-13.75, 65.5], [-13.97, 64.97], [-14.5, 64.75], [-14.75, 64.85], [-15.0, 64.75], [-15.53, 64.97], [-15.68, 65.32], [-15.75, 65.35], [-16.0, 65.25], [-16.25, 65.35], [-16.32, 65.32], [-16.35, 65.25], [-16.25, 65.0], [-16.47, 64.47], [-17.0, 64.25], [-17.25, 64.35], [-17.5, 64.25], [-18.0, 64.46], [-18.5, 64.25], [-18.75, 64.35], [-19.0, 64.25], [-19.25, 64.35], [-19.5, 64.25], [-19.75, 64.35], [-20.0, 64.25], [-20.25, 64.35], [-20.5, 64.25], [-20.75, 64.35], [-21.0, 64.25], [-21.25, 64.35], [-21.5, 64.25], [-21.75, 64.35], [-22.0, 64.25], [-22.53, 64.47], [-22.68, 64.82], [-23.03, 64.97], [-23.2, 65.38], [-23.5, 65.25], [-24.03, 65.47], [-24.25, 66.0], [-24.12, 66.3], [-24.25, 66.35], [-24.5, 66.25], [-24.75, 66.35], [-24.82, 66.32], [-24.97, 65.97], [-25.5, 65.75], [-25.75, 65.85], [-26.0, 65.75], [-26.25, 65.85], [-26.5, 65.75], [-26.75, 65.85], [-27.0, 65.75], [-27.25, 65.85], [-27.5, 65.75], [-27.75, 65.85], [-28.0, 65.75], [-28.25, 65.85], [-28.5, 65.75], [-29.03, 65.97], [-29.25, 66.5], [-29.03, 67.03], [-28.68, 67.18], [-28.53, 67.53], [-28.0, 67.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.731178726227256}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.4189267245300856}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [4.328124606018321, 9.975979225980609, 9.361273441141407, 9.445953801452617, 9.696450139391118, 9.230500345252437]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.363269168186946, 12.969805663067802, 14.641582768396063, 14.264914908888443, 15.249875460960425, 14.236958770003355]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.78899658016212, 3.903343669538515, 3.218811375601925, 3.2787046282619747, 3.663079462485031, 3.458785453822068]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.174833414338195, 4.698431518095958, 6.380763702471654, 5.308611008698449, 6.731178726227256, 5.976009644019598]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8493001679030276, 1.4987228103959145, 1.623299599821742, 1.6417023519946088, 1.7807477362815658, 1.6394406534966453]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.015662711446293, 1.8838019828548194, 2.293743910744099, 2.152057666966314, 2.364152806958417, 2.1542399964563446]}}