{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:03.076952", "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": "2025-Jun-13_to_2025-Jun-17_13.0_63.5"}, "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": 2025060002087}, "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 13 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 17 2025"}, "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": "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": 338440.4319338805}, "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": ["Norway", "Sweden"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "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": ["North Sea", "Norwegian 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": 63.5}, "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": 13.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -0.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 14.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.5}, "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": [[[[0.0, 60.25], [-0.53, 60.47], [-0.75, 61.0], [-0.65, 61.25], [-0.75, 61.5], [-0.53, 62.03], [0.0, 62.25], [0.25, 62.15], [0.32, 62.18], [0.47, 62.53], [0.88, 62.7], [0.82, 62.82], [0.75, 62.85], [0.5, 62.75], [0.25, 62.85], [0.18, 62.82], [0.03, 62.47], [-0.5, 62.25], [-1.03, 62.47], [-1.25, 63.0], [-1.15, 63.25], [-1.25, 63.5], [-1.15, 63.75], [-1.25, 64.0], [-1.03, 64.53], [-0.5, 64.75], [-0.25, 64.65], [0.0, 64.75], [0.25, 64.65], [0.32, 64.68], [0.47, 65.03], [1.0, 65.25], [1.25, 65.15], [1.32, 65.18], [1.47, 65.53], [2.0, 65.75], [2.53, 65.53], [2.68, 65.18], [3.03, 65.03], [3.18, 64.68], [3.3, 64.63], [3.47, 65.03], [3.82, 65.18], [3.97, 65.53], [4.32, 65.68], [4.47, 66.03], [5.0, 66.25], [5.53, 66.03], [5.68, 65.68], [5.75, 65.65], [6.0, 65.75], [6.25, 65.65], [6.5, 65.75], [6.75, 65.65], [7.0, 65.75], [7.25, 65.65], [7.5, 65.75], [7.75, 65.65], [8.0, 65.75], [8.25, 65.65], [8.5, 65.75], [8.75, 65.65], [9.0, 65.75], [9.25, 65.65], [9.5, 65.75], [9.75, 65.65], [9.82, 65.68], [9.97, 66.03], [10.5, 66.25], [10.75, 66.15], [11.0, 66.25], [11.25, 66.15], [11.5, 66.25], [11.75, 66.15], [12.0, 66.25], [12.53, 66.03], [12.68, 65.68], [12.75, 65.65], [12.82, 65.68], [12.97, 66.03], [13.5, 66.25], [14.03, 66.03], [14.18, 65.68], [14.53, 65.53], [14.75, 65.0], [14.65, 64.75], [14.75, 64.5], [14.65, 64.25], [14.75, 64.0], [14.65, 63.75], [14.68, 63.68], [15.03, 63.53], [15.25, 63.0], [15.03, 62.47], [14.68, 62.32], [14.53, 61.97], [14.0, 61.75], [13.75, 61.85], [13.5, 61.75], [13.25, 61.85], [13.0, 61.75], [12.75, 61.85], [12.68, 61.82], [12.53, 61.47], [12.0, 61.25], [11.75, 61.35], [11.5, 61.25], [11.25, 61.35], [11.0, 61.25], [10.75, 61.35], [10.5, 61.25], [10.25, 61.35], [10.0, 61.25], [9.75, 61.35], [9.68, 61.32], [9.65, 61.25], [9.75, 61.0], [9.53, 60.47], [9.18, 60.32], [9.03, 59.97], [8.5, 59.75], [7.97, 59.97], [7.82, 60.32], [7.7, 60.38], [7.54, 60.0], [7.75, 59.5], [7.53, 58.97], [7.18, 58.82], [7.15, 58.75], [7.25, 58.5], [7.03, 57.97], [6.5, 57.75], [6.25, 57.85], [6.0, 57.75], [5.47, 57.97], [5.32, 58.32], [4.97, 58.47], [4.82, 58.82], [4.75, 58.85], [4.5, 58.75], [3.97, 58.97], [3.82, 59.32], [3.75, 59.35], [3.5, 59.25], [2.97, 59.47], [2.82, 59.82], [2.47, 59.97], [2.25, 60.5], [2.35, 60.75], [2.32, 60.82], [2.25, 60.85], [2.18, 60.82], [2.03, 60.47], [1.68, 60.32], [1.53, 59.97], [1.0, 59.75], [0.47, 59.97], [0.32, 60.32], [0.25, 60.35], [0.0, 60.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.25, 64.0], [-1.03, 64.53], [-0.5, 64.75], [-0.25, 64.65], [0.0, 64.75], [0.25, 64.65], [0.32, 64.68], [0.47, 65.03], [1.0, 65.25], [1.25, 65.15], [1.32, 65.18], [1.47, 65.53], [2.0, 65.75], [2.53, 65.53], [2.68, 65.18], [3.03, 65.03], [3.18, 64.68], [3.3, 64.63], [3.47, 65.03], [3.82, 65.18], [3.97, 65.53], [4.32, 65.68], [4.47, 66.03], [5.0, 66.25], [5.53, 66.03], [5.68, 65.68], [5.75, 65.65], [6.0, 65.75], [6.25, 65.65], [6.5, 65.75], [6.75, 65.65], [7.0, 65.75], [7.25, 65.65], [7.5, 65.75], [7.75, 65.65], [8.0, 65.75], [8.25, 65.65], [8.5, 65.75], [8.75, 65.65], [9.0, 65.75], [9.25, 65.65], [9.5, 65.75], [9.75, 65.65], [9.82, 65.68], [9.97, 66.03], [10.5, 66.25], [10.75, 66.15], [11.0, 66.25], [11.25, 66.15], [11.5, 66.25], [11.75, 66.15], [12.0, 66.25], [12.53, 66.03], [12.68, 65.68], [12.75, 65.65], [12.82, 65.68], [12.97, 66.03], [13.5, 66.25], [14.03, 66.03], [14.18, 65.68], [14.53, 65.53], [14.75, 65.0], [14.65, 64.75], [14.75, 64.5], [14.65, 64.25], [14.75, 64.0], [14.65, 63.75], [14.68, 63.68], [15.03, 63.53], [15.25, 63.0], [15.03, 62.47], [14.68, 62.32], [14.53, 61.97], [14.0, 61.75], [13.75, 61.85], [13.5, 61.75], [13.25, 61.85], [13.0, 61.75], [12.75, 61.85], [12.68, 61.82], [12.53, 61.47], [12.0, 61.25], [11.75, 61.35], [11.5, 61.25], [11.25, 61.35], [11.0, 61.25], [10.75, 61.35], [10.5, 61.25], [10.25, 61.35], [10.0, 61.25], [9.75, 61.35], [9.68, 61.32], [9.65, 61.25], [9.75, 61.0], [9.53, 60.47], [9.18, 60.32], [9.03, 59.97], [8.5, 59.75], [7.97, 59.97], [7.82, 60.32], [7.7, 60.38], [7.54, 60.0], [7.75, 59.5], [7.53, 58.97], [7.18, 58.82], [7.15, 58.75], [7.25, 58.5], [7.03, 57.97], [6.5, 57.75], [6.25, 57.85], [6.0, 57.75], [5.47, 57.97], [5.32, 58.32], [4.97, 58.47], [4.82, 58.82], [4.75, 58.85], [4.5, 58.75], [3.97, 58.97], [3.82, 59.32], [3.75, 59.35], [3.5, 59.25], [2.97, 59.47], [2.82, 59.82], [2.47, 59.97], [2.25, 60.5], [2.35, 60.75], [2.32, 60.82], [2.25, 60.85], [2.18, 60.82], [2.03, 60.47], [1.68, 60.32], [1.53, 59.97], [1.0, 59.75], [0.47, 59.97], [0.32, 60.32], [0.25, 60.35], [0.0, 60.25], [-0.53, 60.47], [-0.75, 61.0], [-0.65, 61.25], [-0.75, 61.5], [-0.53, 62.03], [0.0, 62.25], [0.25, 62.15], [0.32, 62.18], [0.47, 62.53], [0.88, 62.7], [0.82, 62.82], [0.75, 62.85], [0.5, 62.75], [0.25, 62.85], [0.18, 62.82], [0.03, 62.47], [-0.5, 62.25], [-1.03, 62.47], [-1.25, 63.0], [-1.15, 63.25], [-1.25, 63.5], [-1.15, 63.75], [-1.25, 64.0]]]]}, "2025-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.25, 64.0], [-1.03, 64.53], [-0.5, 64.75], [-0.25, 64.65], [0.0, 64.75], [0.25, 64.65], [0.32, 64.68], [0.47, 65.03], [1.0, 65.25], [1.25, 65.15], [1.32, 65.18], [1.47, 65.53], [2.0, 65.75], [2.53, 65.53], [2.68, 65.18], [3.03, 65.03], [3.18, 64.68], [3.3, 64.63], [3.47, 65.03], [3.82, 65.18], [3.97, 65.53], [4.32, 65.68], [4.47, 66.03], [5.0, 66.25], [5.53, 66.03], [5.68, 65.68], [5.75, 65.65], [6.0, 65.75], [6.25, 65.65], [6.5, 65.75], [6.75, 65.65], [7.0, 65.75], [7.25, 65.65], [7.5, 65.75], [7.75, 65.65], [8.0, 65.75], [8.25, 65.65], [8.5, 65.75], [8.75, 65.65], [9.0, 65.75], [9.25, 65.65], [9.5, 65.75], [9.75, 65.65], [9.82, 65.68], [9.97, 66.03], [10.5, 66.25], [10.75, 66.15], [11.0, 66.25], [11.25, 66.15], [11.5, 66.25], [11.75, 66.15], [12.0, 66.25], [12.53, 66.03], [12.68, 65.68], [12.75, 65.65], [12.82, 65.68], [12.97, 66.03], [13.5, 66.25], [14.03, 66.03], [14.18, 65.68], [14.53, 65.53], [14.75, 65.0], [14.65, 64.75], [14.75, 64.5], [14.65, 64.25], [14.75, 64.0], [14.65, 63.75], [14.68, 63.68], [15.03, 63.53], [15.25, 63.0], [15.03, 62.47], [14.68, 62.32], [14.53, 61.97], [14.0, 61.75], [13.75, 61.85], [13.5, 61.75], [13.25, 61.85], [13.0, 61.75], [12.75, 61.85], [12.68, 61.82], [12.53, 61.47], [12.0, 61.25], [11.75, 61.35], [11.5, 61.25], [11.25, 61.35], [11.0, 61.25], [10.75, 61.35], [10.5, 61.25], [10.25, 61.35], [10.0, 61.25], [9.75, 61.35], [9.68, 61.32], [9.65, 61.25], [9.75, 61.0], [9.53, 60.47], [9.18, 60.32], [9.03, 59.97], [8.5, 59.75], [7.97, 59.97], [7.82, 60.32], [7.7, 60.38], [7.54, 60.0], [7.75, 59.5], [7.53, 58.97], [7.18, 58.82], [7.15, 58.75], [7.25, 58.5], [7.03, 57.97], [6.5, 57.75], [6.25, 57.85], [6.0, 57.75], [5.47, 57.97], [5.32, 58.32], [4.97, 58.47], [4.82, 58.82], [4.75, 58.85], [4.5, 58.75], [3.97, 58.97], [3.82, 59.32], [3.75, 59.35], [3.5, 59.25], [2.97, 59.47], [2.82, 59.82], [2.47, 59.97], [2.25, 60.5], [2.35, 60.75], [2.32, 60.82], [2.25, 60.85], [2.18, 60.82], [2.03, 60.47], [1.68, 60.32], [1.53, 59.97], [1.0, 59.75], [0.47, 59.97], [0.32, 60.32], [0.25, 60.35], [0.0, 60.25], [-0.53, 60.47], [-0.75, 61.0], [-0.65, 61.25], [-0.75, 61.5], [-0.53, 62.03], [0.0, 62.25], [0.25, 62.15], [0.32, 62.18], [0.47, 62.53], [0.88, 62.7], [0.82, 62.82], [0.75, 62.85], [0.5, 62.75], [0.25, 62.85], [0.18, 62.82], [0.03, 62.47], [-0.5, 62.25], [-1.03, 62.47], [-1.25, 63.0], [-1.15, 63.25], [-1.25, 63.5], [-1.15, 63.75], [-1.25, 64.0]]]]}, "2025-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.25, 64.0], [-1.03, 64.53], [-0.5, 64.75], [-0.25, 64.65], [0.0, 64.75], [0.25, 64.65], [0.32, 64.68], [0.47, 65.03], [1.0, 65.25], [1.25, 65.15], [1.32, 65.18], [1.47, 65.53], [2.0, 65.75], [2.53, 65.53], [2.68, 65.18], [3.03, 65.03], [3.18, 64.68], [3.3, 64.63], [3.47, 65.03], [3.82, 65.18], [3.97, 65.53], [4.32, 65.68], [4.47, 66.03], [5.0, 66.25], [5.53, 66.03], [5.68, 65.68], [5.75, 65.65], [6.0, 65.75], [6.25, 65.65], [6.5, 65.75], [6.75, 65.65], [7.0, 65.75], [7.25, 65.65], [7.5, 65.75], [7.75, 65.65], [8.0, 65.75], [8.25, 65.65], [8.5, 65.75], [8.75, 65.65], [9.0, 65.75], [9.25, 65.65], [9.5, 65.75], [9.75, 65.65], [9.82, 65.68], [9.97, 66.03], [10.5, 66.25], [10.75, 66.15], [11.0, 66.25], [11.25, 66.15], [11.5, 66.25], [11.75, 66.15], [12.0, 66.25], [12.53, 66.03], [12.68, 65.68], [12.75, 65.65], [12.82, 65.68], [12.97, 66.03], [13.5, 66.25], [14.03, 66.03], [14.18, 65.68], [14.53, 65.53], [14.75, 65.0], [14.65, 64.75], [14.75, 64.5], [14.65, 64.25], [14.75, 64.0], [14.65, 63.75], [14.68, 63.68], [15.03, 63.53], [15.25, 63.0], [15.03, 62.47], [14.68, 62.32], [14.53, 61.97], [14.0, 61.75], [13.75, 61.85], [13.5, 61.75], [13.25, 61.85], [13.0, 61.75], [12.75, 61.85], [12.68, 61.82], [12.53, 61.47], [12.0, 61.25], [11.75, 61.35], [11.5, 61.25], [11.25, 61.35], [11.0, 61.25], [10.75, 61.35], [10.5, 61.25], [10.25, 61.35], [10.0, 61.25], [9.75, 61.35], [9.68, 61.32], [9.65, 61.25], [9.75, 61.0], [9.53, 60.47], [9.18, 60.32], [9.03, 59.97], [8.5, 59.75], [7.97, 59.97], [7.82, 60.32], [7.7, 60.38], [7.54, 60.0], [7.75, 59.5], [7.53, 58.97], [7.18, 58.82], [7.15, 58.75], [7.25, 58.5], [7.03, 57.97], [6.5, 57.75], [6.25, 57.85], [6.0, 57.75], [5.47, 57.97], [5.32, 58.32], [4.97, 58.47], [4.82, 58.82], [4.75, 58.85], [4.5, 58.75], [3.97, 58.97], [3.82, 59.32], [3.75, 59.35], [3.5, 59.25], [2.97, 59.47], [2.82, 59.82], [2.47, 59.97], [2.25, 60.5], [2.35, 60.75], [2.32, 60.82], [2.25, 60.85], [2.18, 60.82], [2.03, 60.47], [1.68, 60.32], [1.53, 59.97], [1.0, 59.75], [0.47, 59.97], [0.32, 60.32], [0.25, 60.35], [0.0, 60.25], [-0.53, 60.47], [-0.75, 61.0], [-0.65, 61.25], [-0.75, 61.5], [-0.53, 62.03], [0.0, 62.25], [0.25, 62.15], [0.32, 62.18], [0.47, 62.53], [0.88, 62.7], [0.82, 62.82], [0.75, 62.85], [0.5, 62.75], [0.25, 62.85], [0.18, 62.82], [0.03, 62.47], [-0.5, 62.25], [-1.03, 62.47], [-1.25, 63.0], [-1.15, 63.25], [-1.25, 63.5], [-1.15, 63.75], [-1.25, 64.0]]]]}, "2025-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.53, 61.53], [0.0, 61.75], [0.53, 61.53], [0.75, 61.0], [0.53, 60.47], [0.0, 60.25], [-0.53, 60.47], [-0.75, 61.0], [-0.53, 61.53]]]]}, "2025-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.53, 61.53], [0.0, 61.75], [0.53, 61.53], [0.75, 61.0], [0.53, 60.47], [0.0, 60.25], [-0.53, 60.47], [-0.75, 61.0], [-0.53, 61.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.639376849429311}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.408526792406586}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.130026496211201, 14.36672989406668, 13.659795830320206, 11.512447611490927, 11.499344126383505]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.448569234212243, 19.215085601806663, 19.649587249755882, 11.512447611490927, 11.499344126383505]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.460047861579733, 4.739130883134294, 4.051635984658201, 1.4481278438013874, 1.3883842808726286]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.367561900539101, 9.639376849429311, 9.503815310441553, 1.4481278438013874, 1.3883842808726286]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.9189516856540971, 1.9360509113994522, 1.6809560952867828, 1.185629813391482, 1.1872563365351023]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4501117546976117, 2.840412456936809, 2.7038207533937904, 1.185629813391482, 1.1872563365351023]}}