{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:56.152083", "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-Apr-28_to_2015-May-01_44.5_51.5"}, "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": 2015040002751}, "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": "April 28 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 01 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 69702.9734539166}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 51.5}, "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": 44.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.0, 52.75], [45.25, 52.65], [45.5, 52.75], [46.03, 52.53], [46.25, 52.0], [46.04, 51.5], [46.25, 51.0], [46.03, 50.47], [45.5, 50.25], [44.97, 50.47], [44.82, 50.82], [44.75, 50.85], [44.5, 50.75], [43.97, 50.97], [43.75, 51.5], [43.97, 52.03], [44.32, 52.18], [44.47, 52.53], [45.0, 52.75]]]]}, "2015-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 52.25], [42.75, 52.5], [42.97, 53.03], [43.32, 53.18], [43.35, 53.25], [43.25, 53.5], [43.47, 54.03], [44.0, 54.25], [44.25, 54.15], [44.5, 54.25], [44.75, 54.15], [44.82, 54.18], [44.97, 54.53], [45.5, 54.75], [46.03, 54.53], [46.18, 54.18], [46.25, 54.15], [46.5, 54.25], [47.03, 54.03], [47.18, 53.68], [47.53, 53.53], [47.75, 53.0], [47.65, 52.75], [47.75, 52.5], [47.54, 52.0], [47.75, 51.5], [47.53, 50.97], [47.0, 50.75], [46.75, 50.85], [46.5, 50.75], [46.2, 50.88], [46.03, 50.47], [45.5, 50.25], [45.25, 50.35], [45.0, 50.25], [44.47, 50.47], [44.32, 50.82], [44.25, 50.85], [44.0, 50.75], [43.75, 50.85], [43.5, 50.75], [42.97, 50.97], [42.75, 51.5], [42.85, 51.75], [42.75, 52.0], [42.85, 52.25]]]]}, "2015-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 52.25], [42.75, 52.5], [42.97, 53.03], [43.32, 53.18], [43.35, 53.25], [43.25, 53.5], [43.47, 54.03], [44.0, 54.25], [44.25, 54.15], [44.5, 54.25], [44.75, 54.15], [44.82, 54.18], [44.97, 54.53], [45.5, 54.75], [46.03, 54.53], [46.18, 54.18], [46.25, 54.15], [46.5, 54.25], [47.03, 54.03], [47.18, 53.68], [47.53, 53.53], [47.75, 53.0], [47.65, 52.75], [47.75, 52.5], [47.54, 52.0], [47.75, 51.5], [47.53, 50.97], [47.0, 50.75], [46.75, 50.85], [46.5, 50.75], [46.2, 50.88], [46.03, 50.47], [45.5, 50.25], [45.25, 50.35], [45.0, 50.25], [44.47, 50.47], [44.32, 50.82], [44.25, 50.85], [44.0, 50.75], [43.75, 50.85], [43.5, 50.75], [42.97, 50.97], [42.75, 51.5], [42.85, 51.75], [42.75, 52.0], [42.85, 52.25]]]]}, "2015-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 52.25], [42.75, 52.5], [42.97, 53.03], [43.32, 53.18], [43.35, 53.25], [43.25, 53.5], [43.47, 54.03], [44.0, 54.25], [44.25, 54.15], [44.5, 54.25], [44.75, 54.15], [44.82, 54.18], [44.97, 54.53], [45.5, 54.75], [46.03, 54.53], [46.18, 54.18], [46.25, 54.15], [46.5, 54.25], [47.03, 54.03], [47.18, 53.68], [47.53, 53.53], [47.75, 53.0], [47.65, 52.75], [47.75, 52.5], [47.54, 52.0], [47.75, 51.5], [47.53, 50.97], [47.0, 50.75], [46.75, 50.85], [46.5, 50.75], [46.2, 50.88], [46.03, 50.47], [45.5, 50.25], [45.25, 50.35], [45.0, 50.25], [44.47, 50.47], [44.32, 50.82], [44.25, 50.85], [44.0, 50.75], [43.75, 50.85], [43.5, 50.75], [42.97, 50.97], [42.75, 51.5], [42.85, 51.75], [42.75, 52.0], [42.85, 52.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.447757902128046}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.317939891708139}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.5390041531557, 17.874860443264367, 18.40040380664965, 17.603240205649]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.826187805334428, 19.690268528383456, 19.730665602411534, 19.125862629178073]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.145890644159079, 6.536306814391455, 6.718073380521949, 5.722689378528464]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.255268513763895, 7.447757902128046, 7.29744661653109, 6.456688713634378]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3992632797807594, 1.491620092263559, 1.5464206480593115, 1.3685850666259511]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4229787566738843, 1.7363314975229096, 1.7163473481781573, 1.5603227591970126]}}