{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:53.347842", "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": "2024-May-02_to_2024-May-07_121.0_70.5"}, "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": 2024050001064}, "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": "May 02 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 07 2024"}, "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": 104169.82713238709}, "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": ["Russian Federation"]}, "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": []}, "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": 70.5}, "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": 121.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 127.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 68.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[115.0, 71.75], [115.25, 71.65], [115.5, 71.75], [115.75, 71.65], [116.0, 71.75], [116.25, 71.65], [116.5, 71.75], [116.75, 71.65], [117.0, 71.75], [117.25, 71.65], [117.5, 71.75], [117.75, 71.65], [118.0, 71.75], [118.25, 71.65], [118.5, 71.75], [118.75, 71.65], [119.0, 71.75], [119.25, 71.65], [119.5, 71.75], [119.75, 71.65], [120.0, 71.75], [120.25, 71.65], [120.5, 71.75], [120.75, 71.65], [120.82, 71.68], [120.97, 72.03], [121.5, 72.25], [121.75, 72.15], [122.0, 72.25], [122.25, 72.15], [122.5, 72.25], [122.75, 72.15], [123.0, 72.25], [123.25, 72.15], [123.5, 72.25], [123.75, 72.15], [124.0, 72.25], [124.25, 72.15], [124.5, 72.25], [125.03, 72.03], [125.18, 71.68], [125.53, 71.53], [125.68, 71.18], [126.03, 71.03], [126.18, 70.68], [126.25, 70.65], [126.5, 70.75], [126.75, 70.65], [127.0, 70.75], [127.53, 70.53], [127.75, 70.0], [127.65, 69.75], [127.75, 69.5], [127.53, 68.97], [127.18, 68.82], [127.15, 68.75], [127.25, 68.5], [127.03, 67.97], [126.68, 67.82], [126.53, 67.47], [126.0, 67.25], [125.47, 67.47], [125.32, 67.82], [125.25, 67.85], [125.0, 67.75], [124.75, 67.85], [124.5, 67.75], [124.25, 67.85], [124.18, 67.82], [124.03, 67.47], [123.5, 67.25], [122.97, 67.47], [122.75, 68.0], [122.85, 68.25], [122.82, 68.32], [122.75, 68.35], [122.5, 68.25], [122.25, 68.35], [122.0, 68.25], [121.75, 68.35], [121.5, 68.25], [120.97, 68.47], [120.82, 68.82], [120.75, 68.85], [120.5, 68.75], [120.25, 68.85], [120.0, 68.75], [119.47, 68.97], [119.32, 69.32], [119.0, 69.46], [118.5, 69.25], [117.97, 69.47], [117.82, 69.82], [117.75, 69.85], [117.5, 69.75], [117.25, 69.85], [117.0, 69.75], [116.75, 69.85], [116.5, 69.75], [116.25, 69.85], [116.0, 69.75], [115.75, 69.85], [115.5, 69.75], [114.97, 69.97], [114.82, 70.32], [114.47, 70.47], [114.25, 71.0], [114.47, 71.53], [115.0, 71.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Arctic"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, 71.03], [121.0, 71.25], [121.53, 71.03], [121.75, 70.5], [121.53, 69.97], [121.0, 69.75], [120.47, 69.97], [120.25, 70.5], [120.47, 71.03]]]]}, "2024-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, 69.97], [120.25, 70.5], [120.47, 71.03], [121.0, 71.25], [121.25, 71.15], [121.5, 71.25], [122.03, 71.03], [122.18, 70.68], [122.25, 70.65], [122.5, 70.75], [122.93, 70.57], [122.75, 71.0], [122.97, 71.53], [123.5, 71.75], [123.75, 71.65], [124.0, 71.75], [124.53, 71.53], [124.75, 71.0], [124.53, 70.47], [124.0, 70.25], [124.25, 70.15], [124.5, 70.25], [125.03, 70.03], [125.25, 69.5], [125.03, 68.97], [124.68, 68.82], [124.53, 68.47], [124.0, 68.25], [123.75, 68.35], [123.5, 68.25], [122.97, 68.47], [122.82, 68.82], [122.75, 68.85], [122.5, 68.75], [122.25, 68.85], [122.0, 68.75], [121.47, 68.97], [121.32, 69.32], [120.97, 69.47], [120.82, 69.82], [120.47, 69.97]], [[123.75, 70.35], [123.5, 70.25], [123.75, 70.15], [124.0, 70.25], [123.75, 70.35]], [[123.07, 70.43], [123.18, 70.18], [123.25, 70.15], [123.5, 70.25], [123.07, 70.43]]]]}, "2024-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.47, 70.47], [114.25, 71.0], [114.47, 71.53], [115.0, 71.75], [115.25, 71.65], [115.5, 71.75], [115.75, 71.65], [116.0, 71.75], [116.25, 71.65], [116.5, 71.75], [116.75, 71.65], [117.0, 71.75], [117.25, 71.65], [117.5, 71.75], [117.75, 71.65], [118.0, 71.75], [118.25, 71.65], [118.5, 71.75], [118.75, 71.65], [119.0, 71.75], [119.25, 71.65], [119.5, 71.75], [119.75, 71.65], [120.0, 71.75], [120.25, 71.65], [120.5, 71.75], [120.75, 71.65], [121.0, 71.75], [121.53, 71.53], [121.68, 71.18], [122.03, 71.03], [122.18, 70.68], [122.25, 70.65], [122.5, 70.75], [122.8, 70.63], [122.85, 70.75], [122.75, 71.0], [122.97, 71.53], [123.5, 71.75], [123.75, 71.65], [124.0, 71.75], [124.53, 71.53], [124.75, 71.0], [124.54, 70.5], [124.68, 70.18], [124.75, 70.15], [125.0, 70.25], [125.25, 70.15], [125.5, 70.25], [125.75, 70.15], [125.82, 70.18], [125.97, 70.53], [126.5, 70.75], [127.03, 70.53], [127.25, 70.0], [127.03, 69.47], [126.68, 69.32], [126.65, 69.25], [126.75, 69.0], [126.54, 68.5], [126.75, 68.0], [126.53, 67.47], [126.0, 67.25], [125.47, 67.47], [125.32, 67.82], [125.25, 67.85], [125.0, 67.75], [124.75, 67.85], [124.5, 67.75], [124.25, 67.85], [124.18, 67.82], [124.03, 67.47], [123.5, 67.25], [122.97, 67.47], [122.75, 68.0], [122.85, 68.25], [122.82, 68.32], [122.75, 68.35], [122.5, 68.25], [122.25, 68.35], [122.0, 68.25], [121.75, 68.35], [121.5, 68.25], [120.97, 68.47], [120.82, 68.82], [120.75, 68.85], [120.5, 68.75], [120.25, 68.85], [120.0, 68.75], [119.47, 68.97], [119.32, 69.32], [119.0, 69.46], [118.5, 69.25], [117.97, 69.47], [117.82, 69.82], [117.75, 69.85], [117.5, 69.75], [117.25, 69.85], [117.0, 69.75], [116.75, 69.85], [116.5, 69.75], [116.25, 69.85], [116.0, 69.75], [115.75, 69.85], [115.5, 69.75], [114.97, 69.97], [114.82, 70.32], [114.47, 70.47]]]]}, "2024-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.47, 70.47], [114.25, 71.0], [114.47, 71.53], [115.0, 71.75], [115.25, 71.65], [115.5, 71.75], [115.75, 71.65], [116.0, 71.75], [116.25, 71.65], [116.5, 71.75], [116.75, 71.65], [117.0, 71.75], [117.25, 71.65], [117.5, 71.75], [117.75, 71.65], [118.0, 71.75], [118.25, 71.65], [118.5, 71.75], [118.75, 71.65], [119.0, 71.75], [119.25, 71.65], [119.5, 71.75], [119.75, 71.65], [120.0, 71.75], [120.25, 71.65], [120.5, 71.75], [120.75, 71.65], [120.82, 71.68], [120.97, 72.03], [121.5, 72.25], [121.75, 72.15], [122.0, 72.25], [122.25, 72.15], [122.5, 72.25], [122.75, 72.15], [123.0, 72.25], [123.25, 72.15], [123.5, 72.25], [123.75, 72.15], [124.0, 72.25], [124.25, 72.15], [124.5, 72.25], [125.03, 72.03], [125.18, 71.68], [125.53, 71.53], [125.68, 71.18], [126.03, 71.03], [126.18, 70.68], [126.25, 70.65], [126.5, 70.75], [126.75, 70.65], [127.0, 70.75], [127.53, 70.53], [127.75, 70.0], [127.65, 69.75], [127.75, 69.5], [127.53, 68.97], [127.18, 68.82], [127.15, 68.75], [127.25, 68.5], [127.03, 67.97], [126.68, 67.82], [126.53, 67.47], [126.0, 67.25], [125.47, 67.47], [125.32, 67.82], [125.25, 67.85], [125.0, 67.75], [124.75, 67.85], [124.5, 67.75], [124.25, 67.85], [124.18, 67.82], [124.03, 67.47], [123.5, 67.25], [122.97, 67.47], [122.75, 68.0], [122.85, 68.25], [122.82, 68.32], [122.75, 68.35], [122.5, 68.25], [122.25, 68.35], [122.0, 68.25], [121.75, 68.35], [121.5, 68.25], [120.97, 68.47], [120.82, 68.82], [120.75, 68.85], [120.5, 68.75], [120.25, 68.85], [120.0, 68.75], [119.47, 68.97], [119.32, 69.32], [119.0, 69.46], [118.5, 69.25], [117.97, 69.47], [117.82, 69.82], [117.75, 69.85], [117.5, 69.75], [117.25, 69.85], [117.0, 69.75], [116.75, 69.85], [116.5, 69.75], [116.25, 69.85], [116.0, 69.75], [115.75, 69.85], [115.5, 69.75], [114.97, 69.97], [114.82, 70.32], [114.47, 70.47]]]]}, "2024-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.47, 70.47], [114.25, 71.0], [114.47, 71.53], [115.0, 71.75], [115.25, 71.65], [115.5, 71.75], [115.75, 71.65], [116.0, 71.75], [116.25, 71.65], [116.5, 71.75], [116.75, 71.65], [117.0, 71.75], [117.25, 71.65], [117.5, 71.75], [117.75, 71.65], [118.0, 71.75], [118.25, 71.65], [118.5, 71.75], [118.75, 71.65], [119.0, 71.75], [119.25, 71.65], [119.5, 71.75], [119.75, 71.65], [120.0, 71.75], [120.25, 71.65], [120.5, 71.75], [120.75, 71.65], [120.82, 71.68], [120.97, 72.03], [121.5, 72.25], [121.75, 72.15], [122.0, 72.25], [122.25, 72.15], [122.5, 72.25], [122.75, 72.15], [123.0, 72.25], [123.25, 72.15], [123.5, 72.25], [123.75, 72.15], [124.0, 72.25], [124.25, 72.15], [124.5, 72.25], [125.03, 72.03], [125.18, 71.68], [125.53, 71.53], [125.68, 71.18], [126.03, 71.03], [126.18, 70.68], [126.25, 70.65], [126.5, 70.75], [126.75, 70.65], [127.0, 70.75], [127.53, 70.53], [127.75, 70.0], [127.65, 69.75], [127.75, 69.5], [127.53, 68.97], [127.18, 68.82], [127.15, 68.75], [127.25, 68.5], [127.03, 67.97], [126.68, 67.82], [126.53, 67.47], [126.0, 67.25], [125.47, 67.47], [125.32, 67.82], [125.25, 67.85], [125.0, 67.75], [124.75, 67.85], [124.5, 67.75], [124.25, 67.85], [124.18, 67.82], [124.03, 67.47], [123.5, 67.25], [122.97, 67.47], [122.75, 68.0], [122.85, 68.25], [122.82, 68.32], [122.75, 68.35], [122.5, 68.25], [122.25, 68.35], [122.0, 68.25], [121.75, 68.35], [121.5, 68.25], [120.97, 68.47], [120.82, 68.82], [120.75, 68.85], [120.5, 68.75], [120.25, 68.85], [120.0, 68.75], [119.47, 68.97], [119.32, 69.32], [119.0, 69.46], [118.5, 69.25], [117.97, 69.47], [117.82, 69.82], [117.75, 69.85], [117.5, 69.75], [117.25, 69.85], [117.0, 69.75], [116.75, 69.85], [116.5, 69.75], [116.25, 69.85], [116.0, 69.75], [115.75, 69.85], [115.5, 69.75], [114.97, 69.97], [114.82, 70.32], [114.47, 70.47]]]]}, "2024-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, 70.97], [120.75, 71.5], [120.97, 72.03], [121.5, 72.25], [121.75, 72.15], [122.0, 72.25], [122.25, 72.15], [122.5, 72.25], [122.75, 72.15], [123.0, 72.25], [123.25, 72.15], [123.5, 72.25], [123.75, 72.15], [124.0, 72.25], [124.25, 72.15], [124.5, 72.25], [125.03, 72.03], [125.18, 71.68], [125.53, 71.53], [125.68, 71.18], [126.03, 71.03], [126.18, 70.68], [126.25, 70.65], [126.5, 70.75], [126.75, 70.65], [127.0, 70.75], [127.53, 70.53], [127.75, 70.0], [127.65, 69.75], [127.75, 69.5], [127.53, 68.97], [127.18, 68.82], [127.15, 68.75], [127.25, 68.5], [127.03, 67.97], [126.5, 67.75], [125.97, 67.97], [125.75, 68.5], [125.85, 68.75], [125.82, 68.82], [125.75, 68.85], [125.5, 68.75], [125.25, 68.85], [125.0, 68.75], [124.75, 68.85], [124.5, 68.75], [123.97, 68.97], [123.82, 69.32], [123.75, 69.35], [123.5, 69.25], [123.25, 69.35], [123.0, 69.25], [122.47, 69.47], [122.32, 69.82], [122.25, 69.85], [122.0, 69.75], [121.47, 69.97], [121.25, 70.5], [121.35, 70.75], [121.32, 70.82], [120.97, 70.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.614509047852493}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.3825017159864155}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-0.11245114594811412, 1.772421614321729, 2.250542001194617, 3.041207238700281, 2.617548564653646, 1.8556760502567045]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.11245114594811412, 4.083929196250722, 4.856745184691874, 5.507567282350067, 5.328444152092118, 4.488104464525236]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.463762205297712, 7.406428042814037, 7.2797995017281805, 8.031341096563507, 7.015242621536763, 6.838138871511417]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.463762205297712, 7.70064019099766, 8.2186307599315, 9.614509047852493, 7.944846295228331, 7.884464922846405]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5965896892414457, 1.6355034217223208, 1.6463645591379403, 1.8442679922639473, 1.6134483229853822, 1.56016979801671]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5965896892414457, 1.7103349000074564, 1.8054710870487642, 2.20634337252969, 1.8140691385654215, 1.8206315455778042]}}