{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:19.515067", "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": "2016-Apr-25_to_2016-Apr-28_49.5_44.5"}, "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": 2016040002148}, "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 25 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2016"}, "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": 52908.91233569296}, "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", "W.C.Asia"]}, "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": 44.5}, "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": 49.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "49.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 47.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 50.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.85, 44.75], [48.75, 45.0], [48.97, 45.53], [49.5, 45.75], [50.03, 45.53], [50.18, 45.18], [50.53, 45.03], [50.75, 44.5], [50.65, 44.25], [50.75, 44.0], [50.53, 43.47], [50.0, 43.25], [49.75, 43.35], [49.5, 43.25], [48.97, 43.47], [48.75, 44.0], [48.85, 44.25], [48.75, 44.5], [48.85, 44.75]]]]}, "2016-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.85, 44.25], [46.75, 44.5], [46.85, 44.75], [46.75, 45.0], [46.85, 45.25], [46.75, 45.5], [46.97, 46.03], [47.5, 46.25], [47.75, 46.15], [48.0, 46.25], [48.25, 46.15], [48.32, 46.18], [48.47, 46.53], [49.0, 46.75], [49.53, 46.53], [49.75, 46.0], [49.65, 45.75], [49.68, 45.68], [50.03, 45.53], [50.18, 45.18], [50.53, 45.03], [50.75, 44.5], [50.65, 44.25], [50.75, 44.0], [50.53, 43.47], [50.18, 43.32], [50.03, 42.97], [49.5, 42.75], [49.25, 42.85], [49.0, 42.75], [48.75, 42.85], [48.5, 42.75], [48.0, 42.96], [47.5, 42.75], [46.97, 42.97], [46.75, 43.5], [46.85, 43.75], [46.75, 44.0], [46.85, 44.25]]]]}, "2016-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.85, 44.25], [46.75, 44.5], [46.85, 44.75], [46.75, 45.0], [46.85, 45.25], [46.75, 45.5], [46.97, 46.03], [47.5, 46.25], [47.75, 46.15], [48.0, 46.25], [48.25, 46.15], [48.32, 46.18], [48.47, 46.53], [49.0, 46.75], [49.53, 46.53], [49.75, 46.0], [49.65, 45.75], [49.68, 45.68], [50.03, 45.53], [50.18, 45.18], [50.53, 45.03], [50.75, 44.5], [50.65, 44.25], [50.75, 44.0], [50.53, 43.47], [50.18, 43.32], [50.03, 42.97], [49.5, 42.75], [49.25, 42.85], [49.0, 42.75], [48.75, 42.85], [48.5, 42.75], [48.0, 42.96], [47.5, 42.75], [46.97, 42.97], [46.75, 43.5], [46.85, 43.75], [46.75, 44.0], [46.85, 44.25]]]]}, "2016-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.85, 44.25], [46.75, 44.5], [46.85, 44.75], [46.75, 45.0], [46.85, 45.25], [46.75, 45.5], [46.97, 46.03], [47.5, 46.25], [47.75, 46.15], [48.0, 46.25], [48.25, 46.15], [48.32, 46.18], [48.47, 46.53], [49.0, 46.75], [49.53, 46.53], [49.75, 46.0], [49.65, 45.75], [49.68, 45.68], [50.03, 45.53], [50.18, 45.18], [50.53, 45.03], [50.75, 44.5], [50.65, 44.25], [50.75, 44.0], [50.53, 43.47], [50.18, 43.32], [50.03, 42.97], [49.5, 42.75], [49.25, 42.85], [49.0, 42.75], [48.75, 42.85], [48.5, 42.75], [48.0, 42.96], [47.5, 42.75], [46.97, 42.97], [46.75, 43.5], [46.85, 43.75], [46.75, 44.0], [46.85, 44.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.707982333674522}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.4951594931271295}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.919032521137524, 16.908653682552426, 18.402167802297186, 17.56045070096036]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.89373790625774, 18.835656750660632, 20.339858376209747, 20.27417774754707]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.9891741937527856, 4.214969827898632, 5.375157381023416, 4.209098207828994]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.82228185449992, 5.533716339791226, 6.707982333674522, 6.059412206002776]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4938630256214023, 1.8569637211426089, 2.4365499252340155, 1.8521725476488342]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6331560933676084, 2.2958470914420714, 3.3428824233260035, 2.7237355987029384]}}