{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:02.558750", "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": "2021-Oct-07_to_2021-Oct-11_22.5_61.5"}, "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": 2021100001617}, "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": "October 07 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 11 2021"}, "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": 102807.8186016386}, "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": ["Finland", "Russian Federation"]}, "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": []}, "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": 61.5}, "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": 22.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 22.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 64.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[22.25, 62.15], [22.32, 62.18], [22.47, 62.53], [23.0, 62.75], [23.25, 62.65], [23.5, 62.75], [23.75, 62.65], [24.0, 62.75], [24.25, 62.65], [24.5, 62.75], [24.75, 62.65], [25.0, 62.75], [25.25, 62.65], [25.5, 62.75], [25.75, 62.65], [25.82, 62.68], [25.97, 63.03], [26.38, 63.2], [26.25, 63.5], [26.47, 64.03], [26.82, 64.18], [26.97, 64.53], [27.5, 64.75], [28.03, 64.53], [28.18, 64.18], [28.25, 64.15], [28.32, 64.18], [28.47, 64.53], [29.0, 64.75], [29.53, 64.53], [29.68, 64.18], [29.75, 64.15], [29.82, 64.18], [29.97, 64.53], [30.5, 64.75], [31.03, 64.53], [31.25, 64.0], [31.15, 63.75], [31.25, 63.5], [31.13, 63.2], [31.25, 63.15], [31.5, 63.25], [31.75, 63.15], [32.0, 63.25], [32.25, 63.15], [32.5, 63.25], [32.75, 63.15], [33.0, 63.25], [33.25, 63.15], [33.5, 63.25], [34.03, 63.03], [34.25, 62.5], [34.03, 61.97], [33.68, 61.82], [33.53, 61.47], [33.18, 61.32], [33.03, 60.97], [32.5, 60.75], [31.97, 60.97], [31.82, 61.32], [31.75, 61.35], [31.5, 61.25], [31.25, 61.35], [31.0, 61.25], [30.75, 61.35], [30.5, 61.25], [30.25, 61.35], [30.18, 61.32], [30.03, 60.97], [29.5, 60.75], [29.25, 60.85], [29.18, 60.82], [29.03, 60.47], [28.5, 60.25], [28.25, 60.35], [28.0, 60.25], [27.75, 60.35], [27.5, 60.25], [27.25, 60.35], [27.0, 60.25], [26.75, 60.35], [26.5, 60.25], [26.25, 60.35], [26.0, 60.25], [25.75, 60.35], [25.5, 60.25], [25.25, 60.35], [25.0, 60.25], [24.75, 60.35], [24.5, 60.25], [24.25, 60.35], [24.0, 60.25], [23.5, 60.46], [23.0, 60.25], [22.75, 60.35], [22.5, 60.25], [22.25, 60.35], [22.0, 60.25], [21.47, 60.47], [21.25, 61.0], [21.35, 61.25], [21.25, 61.5], [21.47, 62.03], [22.0, 62.25], [22.25, 62.15]], [[29.25, 62.5], [29.15, 62.25], [29.18, 62.18], [29.25, 62.15], [29.32, 62.18], [29.47, 62.53], [29.82, 62.68], [29.87, 62.8], [29.75, 62.85], [29.5, 62.75], [29.25, 62.85], [29.13, 62.8], [29.25, 62.5]]]]}}, "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": {"2021-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.25, 61.5], [21.47, 62.03], [22.0, 62.25], [22.25, 62.15], [22.5, 62.25], [23.03, 62.03], [23.25, 61.5], [23.15, 61.25], [23.25, 61.0], [23.03, 60.47], [22.5, 60.25], [22.25, 60.35], [22.0, 60.25], [21.47, 60.47], [21.25, 61.0], [21.35, 61.25], [21.25, 61.5]]]]}, "2021-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.25, 61.5], [21.47, 62.03], [22.0, 62.25], [22.25, 62.15], [22.32, 62.18], [22.47, 62.53], [23.0, 62.75], [23.25, 62.65], [23.5, 62.75], [23.75, 62.65], [24.0, 62.75], [24.25, 62.65], [24.5, 62.75], [24.75, 62.65], [25.0, 62.75], [25.25, 62.65], [25.5, 62.75], [25.75, 62.65], [25.82, 62.68], [25.97, 63.03], [26.5, 63.25], [26.75, 63.15], [27.0, 63.25], [27.25, 63.15], [27.5, 63.25], [27.75, 63.15], [28.0, 63.25], [28.25, 63.15], [28.5, 63.25], [29.03, 63.03], [29.25, 62.5], [29.15, 62.25], [29.18, 62.18], [29.25, 62.15], [29.32, 62.18], [29.47, 62.53], [29.82, 62.68], [29.97, 63.03], [30.5, 63.25], [30.75, 63.15], [31.0, 63.25], [31.25, 63.15], [31.5, 63.25], [31.75, 63.15], [32.0, 63.25], [32.25, 63.15], [32.5, 63.25], [32.75, 63.15], [33.0, 63.25], [33.25, 63.15], [33.5, 63.25], [34.03, 63.03], [34.25, 62.5], [34.03, 61.97], [33.68, 61.82], [33.53, 61.47], [33.18, 61.32], [33.03, 60.97], [32.5, 60.75], [31.97, 60.97], [31.82, 61.32], [31.75, 61.35], [31.5, 61.25], [31.25, 61.35], [31.0, 61.25], [30.75, 61.35], [30.5, 61.25], [30.25, 61.35], [30.18, 61.32], [30.03, 60.97], [29.5, 60.75], [29.25, 60.85], [29.18, 60.82], [29.03, 60.47], [28.5, 60.25], [28.25, 60.35], [28.0, 60.25], [27.75, 60.35], [27.5, 60.25], [27.25, 60.35], [27.0, 60.25], [26.75, 60.35], [26.5, 60.25], [26.25, 60.35], [26.0, 60.25], [25.75, 60.35], [25.5, 60.25], [25.25, 60.35], [25.0, 60.25], [24.75, 60.35], [24.5, 60.25], [24.25, 60.35], [24.0, 60.25], [23.5, 60.46], [23.0, 60.25], [22.75, 60.35], [22.5, 60.25], [22.25, 60.35], [22.0, 60.25], [21.47, 60.47], [21.25, 61.0], [21.35, 61.25], [21.25, 61.5]]]]}, "2021-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.25, 61.5], [21.47, 62.03], [22.0, 62.25], [22.25, 62.15], [22.32, 62.18], [22.47, 62.53], [23.0, 62.75], [23.25, 62.65], [23.5, 62.75], [23.75, 62.65], [24.0, 62.75], [24.25, 62.65], [24.5, 62.75], [24.75, 62.65], [25.0, 62.75], [25.25, 62.65], [25.5, 62.75], [25.75, 62.65], [25.82, 62.68], [25.97, 63.03], [26.38, 63.2], [26.25, 63.5], [26.47, 64.03], [26.82, 64.18], [26.97, 64.53], [27.5, 64.75], [28.03, 64.53], [28.18, 64.18], [28.25, 64.15], [28.32, 64.18], [28.47, 64.53], [29.0, 64.75], [29.53, 64.53], [29.68, 64.18], [29.75, 64.15], [29.82, 64.18], [29.97, 64.53], [30.5, 64.75], [31.03, 64.53], [31.25, 64.0], [31.15, 63.75], [31.25, 63.5], [31.13, 63.2], [31.25, 63.15], [31.5, 63.25], [31.75, 63.15], [32.0, 63.25], [32.25, 63.15], [32.5, 63.25], [32.75, 63.15], [33.0, 63.25], [33.25, 63.15], [33.5, 63.25], [34.03, 63.03], [34.25, 62.5], [34.03, 61.97], [33.68, 61.82], [33.53, 61.47], [33.18, 61.32], [33.03, 60.97], [32.5, 60.75], [31.97, 60.97], [31.82, 61.32], [31.75, 61.35], [31.5, 61.25], [31.25, 61.35], [31.0, 61.25], [30.75, 61.35], [30.5, 61.25], [30.25, 61.35], [30.18, 61.32], [30.03, 60.97], [29.5, 60.75], [29.25, 60.85], [29.18, 60.82], [29.03, 60.47], [28.5, 60.25], [28.25, 60.35], [28.0, 60.25], [27.75, 60.35], [27.5, 60.25], [27.25, 60.35], [27.0, 60.25], [26.75, 60.35], [26.5, 60.25], [26.25, 60.35], [26.0, 60.25], [25.75, 60.35], [25.5, 60.25], [25.25, 60.35], [25.0, 60.25], [24.75, 60.35], [24.5, 60.25], [24.25, 60.35], [24.0, 60.25], [23.5, 60.46], [23.0, 60.25], [22.75, 60.35], [22.5, 60.25], [22.25, 60.35], [22.0, 60.25], [21.47, 60.47], [21.25, 61.0], [21.35, 61.25], [21.25, 61.5]], [[29.18, 62.18], [29.25, 62.15], [29.32, 62.18], [29.47, 62.53], [29.82, 62.68], [29.88, 62.8], [29.75, 62.85], [29.5, 62.75], [29.25, 62.85], [29.13, 62.8], [29.25, 62.5], [29.15, 62.25], [29.18, 62.18]]]]}, "2021-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.47, 60.97], [21.25, 61.5], [21.47, 62.03], [22.0, 62.25], [22.25, 62.15], [22.32, 62.18], [22.47, 62.53], [23.0, 62.75], [23.25, 62.65], [23.5, 62.75], [23.75, 62.65], [24.0, 62.75], [24.25, 62.65], [24.5, 62.75], [24.75, 62.65], [25.0, 62.75], [25.25, 62.65], [25.5, 62.75], [25.75, 62.65], [25.82, 62.68], [25.97, 63.03], [26.38, 63.2], [26.25, 63.5], [26.47, 64.03], [26.82, 64.18], [26.97, 64.53], [27.5, 64.75], [28.03, 64.53], [28.18, 64.18], [28.25, 64.15], [28.32, 64.18], [28.47, 64.53], [29.0, 64.75], [29.53, 64.53], [29.68, 64.18], [29.75, 64.15], [29.82, 64.18], [29.97, 64.53], [30.5, 64.75], [31.03, 64.53], [31.25, 64.0], [31.15, 63.75], [31.25, 63.5], [31.13, 63.2], [31.25, 63.15], [31.5, 63.25], [31.75, 63.15], [32.0, 63.25], [32.25, 63.15], [32.5, 63.25], [32.75, 63.15], [33.0, 63.25], [33.25, 63.15], [33.5, 63.25], [34.03, 63.03], [34.25, 62.5], [34.03, 61.97], [33.68, 61.82], [33.53, 61.47], [33.18, 61.32], [33.03, 60.97], [32.5, 60.75], [31.97, 60.97], [31.82, 61.32], [31.75, 61.35], [31.5, 61.25], [31.25, 61.35], [31.0, 61.25], [30.75, 61.35], [30.5, 61.25], [30.25, 61.35], [30.18, 61.32], [30.03, 60.97], [29.5, 60.75], [29.25, 60.85], [29.18, 60.82], [29.03, 60.47], [28.5, 60.25], [28.25, 60.35], [28.0, 60.25], [27.75, 60.35], [27.5, 60.25], [27.25, 60.35], [27.0, 60.25], [26.75, 60.35], [26.5, 60.25], [26.25, 60.35], [26.0, 60.25], [25.75, 60.35], [25.5, 60.25], [25.25, 60.35], [25.0, 60.25], [24.75, 60.35], [24.5, 60.25], [24.25, 60.35], [24.0, 60.25], [23.5, 60.46], [23.0, 60.25], [22.75, 60.35], [22.5, 60.25], [21.97, 60.47], [21.82, 60.82], [21.47, 60.97]], [[29.18, 62.18], [29.25, 62.15], [29.32, 62.18], [29.47, 62.53], [29.82, 62.68], [29.88, 62.8], [29.75, 62.85], [29.5, 62.75], [29.25, 62.85], [29.13, 62.8], [29.25, 62.5], [29.15, 62.25], [29.18, 62.18]]]]}, "2021-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.97, 64.53], [27.5, 64.75], [28.03, 64.53], [28.18, 64.18], [28.25, 64.15], [28.32, 64.18], [28.47, 64.53], [29.0, 64.75], [29.53, 64.53], [29.68, 64.18], [29.75, 64.15], [29.82, 64.18], [29.97, 64.53], [30.5, 64.75], [31.03, 64.53], [31.25, 64.0], [31.15, 63.75], [31.25, 63.5], [31.03, 62.97], [30.5, 62.75], [30.25, 62.85], [30.0, 62.75], [29.75, 62.85], [29.5, 62.75], [29.25, 62.85], [29.0, 62.75], [28.75, 62.85], [28.68, 62.82], [28.53, 62.47], [28.0, 62.25], [27.47, 62.47], [27.32, 62.82], [27.25, 62.85], [27.0, 62.75], [26.47, 62.97], [26.25, 63.5], [26.47, 64.03], [26.82, 64.18], [26.97, 64.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.745994693945249}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.49408352943829}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.682284191310771, 10.816150899025445, 10.908694547318646, 10.490696935821404, 8.779372685799956]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.962720183102249, 11.869448705410491, 12.27801996835234, 11.18038494533937, 9.391651970092312]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.0811920379467495, 4.153117421838522, 4.727534266603405, 4.601116706379519, 4.3025203285835785]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.216006332194979, 4.731337440903417, 5.745994693945249, 5.629538884438887, 4.525101535081376]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2283421874509912, 1.2964433403022613, 1.491527383366061, 1.4708586121856404, 1.3449755218248225]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2444131281207036, 1.41691939231151, 1.708430697180383, 1.7315819152518606, 1.3926375726952807]}}