{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:22.177647", "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": "2018-Oct-15_to_2018-Oct-21_36.5_48.5"}, "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": 2018100001988}, "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 15 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 21 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 353705.26759667805}, "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": ["Belarus", "Russian Federation", "Ukraine"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": ["Sea of Azov"]}, "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": 48.5}, "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": 36.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 29.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.38, 48.7], [35.25, 49.0], [35.47, 49.53], [36.0, 49.75], [36.25, 49.65], [36.5, 49.75], [37.03, 49.53], [37.25, 49.0], [37.15, 48.75], [37.25, 48.5], [37.13, 48.2], [37.25, 48.15], [37.5, 48.25], [38.03, 48.03], [38.25, 47.5], [38.03, 46.97], [37.5, 46.75], [37.25, 46.85], [37.18, 46.82], [37.03, 46.47], [36.5, 46.25], [35.97, 46.47], [35.82, 46.82], [35.75, 46.85], [35.5, 46.75], [34.97, 46.97], [34.75, 47.5], [34.85, 47.75], [34.75, 48.0], [34.97, 48.53], [35.38, 48.7]]], [[[35.97, 51.03], [36.32, 51.18], [36.47, 51.53], [37.0, 51.75], [37.53, 51.53], [37.68, 51.18], [38.03, 51.03], [38.25, 50.5], [38.03, 49.97], [37.5, 49.75], [37.25, 49.85], [37.0, 49.75], [36.75, 49.85], [36.5, 49.75], [35.97, 49.97], [35.75, 50.5], [35.97, 51.03]]]]}, "2018-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, 50.03], [30.5, 50.25], [31.03, 50.03], [31.18, 49.68], [31.25, 49.65], [31.5, 49.75], [31.75, 49.65], [31.82, 49.68], [31.85, 49.75], [31.75, 50.0], [31.85, 50.25], [31.75, 50.5], [31.97, 51.03], [32.32, 51.18], [32.47, 51.53], [33.0, 51.75], [33.25, 51.65], [33.32, 51.68], [33.47, 52.03], [33.82, 52.18], [33.97, 52.53], [34.5, 52.75], [34.75, 52.65], [35.0, 52.75], [35.25, 52.65], [35.5, 52.75], [35.75, 52.65], [36.0, 52.75], [36.53, 52.53], [36.68, 52.18], [36.75, 52.15], [37.0, 52.25], [37.53, 52.03], [37.75, 51.5], [37.65, 51.25], [37.68, 51.18], [37.75, 51.15], [38.0, 51.25], [38.53, 51.03], [38.75, 50.5], [38.53, 49.97], [38.18, 49.82], [38.03, 49.47], [37.68, 49.32], [37.65, 49.25], [37.75, 49.0], [37.65, 48.75], [37.68, 48.68], [37.75, 48.65], [38.0, 48.75], [38.25, 48.65], [38.5, 48.75], [39.03, 48.53], [39.25, 48.0], [39.03, 47.47], [38.68, 47.32], [38.65, 47.25], [38.75, 47.0], [38.53, 46.47], [38.0, 46.25], [37.75, 46.35], [37.5, 46.25], [37.25, 46.35], [37.0, 46.25], [36.75, 46.35], [36.5, 46.25], [36.25, 46.35], [36.0, 46.25], [35.75, 46.35], [35.5, 46.25], [35.25, 46.35], [35.0, 46.25], [34.75, 46.35], [34.5, 46.25], [34.25, 46.35], [34.0, 46.25], [33.47, 46.47], [33.25, 47.0], [33.35, 47.25], [33.32, 47.32], [33.25, 47.35], [33.18, 47.32], [33.03, 46.97], [32.5, 46.75], [32.25, 46.85], [32.0, 46.75], [31.75, 46.85], [31.5, 46.75], [30.97, 46.97], [30.82, 47.32], [30.47, 47.47], [30.32, 47.82], [29.97, 47.97], [29.75, 48.5], [29.96, 49.0], [29.75, 49.5], [29.97, 50.03]]]]}, "2018-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, 52.0], [29.85, 52.25], [29.75, 52.5], [29.97, 53.03], [30.5, 53.25], [30.75, 53.15], [31.0, 53.25], [31.25, 53.15], [31.32, 53.18], [31.47, 53.53], [31.82, 53.68], [31.97, 54.03], [32.5, 54.25], [32.75, 54.15], [33.0, 54.25], [33.53, 54.03], [33.68, 53.68], [33.75, 53.65], [34.0, 53.75], [34.25, 53.65], [34.5, 53.75], [34.75, 53.65], [35.0, 53.75], [35.25, 53.65], [35.5, 53.75], [35.75, 53.65], [36.0, 53.75], [36.25, 53.65], [36.5, 53.75], [36.75, 53.65], [37.0, 53.75], [37.25, 53.65], [37.5, 53.75], [37.75, 53.65], [38.0, 53.75], [38.25, 53.65], [38.5, 53.75], [39.03, 53.53], [39.25, 53.0], [39.15, 52.75], [39.25, 52.5], [39.15, 52.25], [39.25, 52.0], [39.03, 51.47], [38.68, 51.32], [38.54, 51.0], [38.75, 50.5], [38.53, 49.97], [38.18, 49.82], [38.15, 49.75], [38.25, 49.5], [38.03, 48.97], [37.68, 48.82], [37.65, 48.75], [37.68, 48.68], [37.75, 48.65], [38.0, 48.75], [38.25, 48.65], [38.5, 48.75], [39.03, 48.53], [39.25, 48.0], [39.03, 47.47], [38.68, 47.32], [38.65, 47.25], [38.75, 47.0], [38.53, 46.47], [38.0, 46.25], [37.75, 46.35], [37.5, 46.25], [37.25, 46.35], [37.0, 46.25], [36.75, 46.35], [36.5, 46.25], [36.25, 46.35], [36.0, 46.25], [35.75, 46.35], [35.5, 46.25], [35.25, 46.35], [35.0, 46.25], [34.75, 46.35], [34.5, 46.25], [34.25, 46.35], [34.0, 46.25], [33.47, 46.47], [33.25, 47.0], [33.35, 47.25], [33.32, 47.32], [33.25, 47.35], [33.18, 47.32], [33.03, 46.97], [32.5, 46.75], [32.25, 46.85], [32.0, 46.75], [31.75, 46.85], [31.5, 46.75], [30.97, 46.97], [30.82, 47.32], [30.47, 47.47], [30.32, 47.82], [29.97, 47.97], [29.75, 48.5], [29.96, 49.0], [29.75, 49.5], [29.97, 50.03], [30.5, 50.25], [30.25, 50.35], [30.0, 50.25], [29.47, 50.47], [29.25, 51.0], [29.47, 51.53], [29.82, 51.68], [29.85, 51.75], [29.75, 52.0]], [[31.03, 50.03], [31.18, 49.68], [31.25, 49.65], [31.5, 49.75], [31.75, 49.65], [31.82, 49.68], [31.85, 49.75], [31.75, 50.0], [31.85, 50.25], [31.82, 50.32], [31.75, 50.35], [31.5, 50.25], [31.25, 50.35], [31.0, 50.25], [30.75, 50.35], [30.5, 50.25], [31.03, 50.03]]]]}, "2018-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, 52.0], [29.85, 52.25], [29.75, 52.5], [29.97, 53.03], [30.5, 53.25], [30.75, 53.15], [31.0, 53.25], [31.25, 53.15], [31.32, 53.18], [31.47, 53.53], [31.82, 53.68], [31.97, 54.03], [32.5, 54.25], [32.75, 54.15], [33.0, 54.25], [33.53, 54.03], [33.68, 53.68], [33.75, 53.65], [34.0, 53.75], [34.25, 53.65], [34.5, 53.75], [34.75, 53.65], [35.0, 53.75], [35.25, 53.65], [35.5, 53.75], [35.75, 53.65], [36.0, 53.75], [36.25, 53.65], [36.5, 53.75], [36.75, 53.65], [37.0, 53.75], [37.25, 53.65], [37.5, 53.75], [37.75, 53.65], [38.0, 53.75], [38.25, 53.65], [38.5, 53.75], [39.03, 53.53], [39.25, 53.0], [39.15, 52.75], [39.25, 52.5], [39.15, 52.25], [39.25, 52.0], [39.03, 51.47], [38.68, 51.32], [38.54, 51.0], [38.75, 50.5], [38.53, 49.97], [38.18, 49.82], [38.15, 49.75], [38.25, 49.5], [38.03, 48.97], [37.68, 48.82], [37.65, 48.75], [37.68, 48.68], [37.75, 48.65], [38.0, 48.75], [38.25, 48.65], [38.5, 48.75], [39.03, 48.53], [39.25, 48.0], [39.03, 47.47], [38.68, 47.32], [38.65, 47.25], [38.75, 47.0], [38.53, 46.47], [38.0, 46.25], [37.75, 46.35], [37.5, 46.25], [37.25, 46.35], [37.0, 46.25], [36.75, 46.35], [36.5, 46.25], [36.25, 46.35], [36.0, 46.25], [35.75, 46.35], [35.5, 46.25], [35.25, 46.35], [35.0, 46.25], [34.75, 46.35], [34.5, 46.25], [34.25, 46.35], [34.0, 46.25], [33.47, 46.47], [33.25, 47.0], [33.35, 47.25], [33.32, 47.32], [33.25, 47.35], [33.18, 47.32], [33.03, 46.97], [32.5, 46.75], [32.25, 46.85], [32.0, 46.75], [31.75, 46.85], [31.5, 46.75], [30.97, 46.97], [30.82, 47.32], [30.47, 47.47], [30.32, 47.82], [29.97, 47.97], [29.75, 48.5], [29.96, 49.0], [29.75, 49.5], [29.97, 50.03], [30.5, 50.25], [30.25, 50.35], [30.0, 50.25], [29.47, 50.47], [29.25, 51.0], [29.47, 51.53], [29.82, 51.68], [29.85, 51.75], [29.75, 52.0]], [[31.03, 50.03], [31.18, 49.68], [31.25, 49.65], [31.5, 49.75], [31.75, 49.65], [31.82, 49.68], [31.85, 49.75], [31.75, 50.0], [31.85, 50.25], [31.82, 50.32], [31.75, 50.35], [31.5, 50.25], [31.25, 50.35], [31.0, 50.25], [30.75, 50.35], [30.5, 50.25], [31.03, 50.03]]]]}, "2018-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, 52.0], [29.85, 52.25], [29.75, 52.5], [29.97, 53.03], [30.5, 53.25], [30.75, 53.15], [31.0, 53.25], [31.25, 53.15], [31.32, 53.18], [31.47, 53.53], [31.82, 53.68], [31.97, 54.03], [32.5, 54.25], [32.75, 54.15], [33.0, 54.25], [33.53, 54.03], [33.68, 53.68], [33.75, 53.65], [34.0, 53.75], [34.25, 53.65], [34.5, 53.75], [34.75, 53.65], [35.0, 53.75], [35.25, 53.65], [35.5, 53.75], [35.75, 53.65], [36.0, 53.75], [36.25, 53.65], [36.5, 53.75], [36.75, 53.65], [37.0, 53.75], [37.25, 53.65], [37.5, 53.75], [37.75, 53.65], [38.0, 53.75], [38.25, 53.65], [38.5, 53.75], [39.03, 53.53], [39.25, 53.0], [39.15, 52.75], [39.25, 52.5], [39.15, 52.25], [39.25, 52.0], [39.03, 51.47], [38.68, 51.32], [38.53, 50.97], [38.0, 50.75], [37.75, 50.85], [37.68, 50.82], [37.53, 50.47], [37.0, 50.25], [37.25, 50.15], [37.5, 50.25], [38.03, 50.03], [38.25, 49.5], [38.03, 48.97], [37.5, 48.75], [37.25, 48.85], [37.18, 48.82], [37.15, 48.75], [37.25, 48.5], [37.03, 47.97], [36.5, 47.75], [36.25, 47.85], [36.0, 47.75], [35.47, 47.97], [35.32, 48.32], [34.97, 48.47], [34.82, 48.82], [34.75, 48.85], [34.5, 48.75], [34.25, 48.85], [34.0, 48.75], [33.47, 48.97], [33.32, 49.32], [32.97, 49.47], [32.82, 49.82], [32.75, 49.85], [32.5, 49.75], [31.97, 49.97], [31.82, 50.32], [31.75, 50.35], [31.5, 50.25], [31.25, 50.35], [31.0, 50.25], [30.75, 50.35], [30.5, 50.25], [30.25, 50.35], [30.0, 50.25], [29.47, 50.47], [29.25, 51.0], [29.47, 51.53], [29.82, 51.68], [29.85, 51.75], [29.75, 52.0]], [[36.75, 50.35], [36.5, 50.25], [36.75, 50.15], [37.0, 50.25], [36.75, 50.35]], [[36.25, 50.35], [36.13, 50.3], [36.18, 50.18], [36.25, 50.15], [36.5, 50.25], [36.25, 50.35]]]]}, "2018-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.47, 51.03], [33.0, 51.25], [33.25, 51.15], [33.32, 51.18], [33.47, 51.53], [34.0, 51.75], [34.25, 51.65], [34.5, 51.75], [34.75, 51.65], [35.0, 51.75], [35.53, 51.53], [35.75, 51.0], [35.65, 50.75], [35.75, 50.5], [35.57, 50.07], [36.0, 50.25], [36.25, 50.15], [36.5, 50.25], [36.75, 50.15], [37.0, 50.25], [37.25, 50.15], [37.5, 50.25], [38.03, 50.03], [38.25, 49.5], [38.03, 48.97], [37.5, 48.75], [37.25, 48.85], [37.18, 48.82], [37.15, 48.75], [37.25, 48.5], [37.03, 47.97], [36.5, 47.75], [36.25, 47.85], [36.0, 47.75], [35.47, 47.97], [35.32, 48.32], [34.97, 48.47], [34.82, 48.82], [34.75, 48.85], [34.5, 48.75], [34.25, 48.85], [34.0, 48.75], [33.47, 48.97], [33.32, 49.32], [32.97, 49.47], [32.82, 49.82], [32.47, 49.97], [32.25, 50.5], [32.47, 51.03]]], [[[37.47, 50.97], [37.25, 51.5], [37.47, 52.03], [38.0, 52.25], [38.53, 52.03], [38.75, 51.5], [38.53, 50.97], [38.0, 50.75], [37.47, 50.97]]]]}, "2018-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, 47.97], [35.25, 48.5], [35.47, 49.03], [36.0, 49.25], [36.25, 49.15], [36.5, 49.25], [37.03, 49.03], [37.25, 48.5], [37.03, 47.97], [36.5, 47.75], [36.25, 47.85], [36.0, 47.75], [35.47, 47.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.280556750491144}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.47141036199658}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.976050935349406, 15.400089353161945, 14.605836224067616, 14.323128948313865, 12.675883274485216, 12.689954333759488, 13.576719827064949]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.081508562365173, 17.81017178080981, 17.19232536103533, 16.70163079475998, 14.738558876417471, 14.391093678604705, 13.622089252851538]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.624698164314589, 6.587334770703114, 6.659502303045412, 6.608531719767506, 6.171660368460056, 5.394356764809639, 5.595101517822087]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.950556259095549, 7.627056217915651, 7.904792514888243, 8.280556750491144, 7.5273143578014015, 6.049255481897376, 5.615127229845484]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3912848234012165, 1.6065572967612214, 1.6397792879740607, 1.666408377767558, 1.6374698958787128, 1.391862904079429, 1.4091227475588943]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.45782141894971, 1.8373412291977282, 1.9468938963203992, 1.952593077217344, 1.985735454432291, 1.4992020731754738, 1.41395625454534]}}