{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:27.763553", "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-Apr-26_to_2021-Apr-28_80.0_72.0"}, "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": 2021040002718}, "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 26 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 56230.02124599769}, "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": ["Russian-Arctic"]}, "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": ["Kara Sea"]}, "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": 72.0}, "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": 80.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "80.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 74.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 84.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 70.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 74.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.35, 71.25], [74.25, 71.5], [74.47, 72.03], [74.82, 72.18], [74.97, 72.53], [75.32, 72.68], [75.47, 73.03], [75.82, 73.18], [75.97, 73.53], [76.5, 73.75], [76.75, 73.65], [76.82, 73.68], [76.97, 74.03], [77.32, 74.18], [77.47, 74.53], [78.0, 74.75], [78.25, 74.65], [78.5, 74.75], [78.75, 74.65], [79.0, 74.75], [79.25, 74.65], [79.5, 74.75], [80.03, 74.53], [80.18, 74.18], [80.25, 74.15], [80.5, 74.25], [80.75, 74.15], [81.0, 74.25], [81.25, 74.15], [81.5, 74.25], [81.75, 74.15], [82.0, 74.25], [82.25, 74.15], [82.5, 74.25], [82.75, 74.15], [83.0, 74.25], [83.25, 74.15], [83.5, 74.25], [83.75, 74.15], [84.0, 74.25], [84.25, 74.15], [84.5, 74.25], [85.03, 74.03], [85.25, 73.5], [85.03, 72.97], [84.5, 72.75], [84.25, 72.85], [84.0, 72.75], [83.75, 72.85], [83.68, 72.82], [83.53, 72.47], [83.0, 72.25], [82.47, 72.47], [82.32, 72.82], [82.25, 72.85], [82.18, 72.82], [82.03, 72.47], [81.68, 72.32], [81.53, 71.97], [81.0, 71.75], [80.7, 71.88], [80.53, 71.47], [80.0, 71.25], [79.75, 71.35], [79.5, 71.25], [79.25, 71.35], [79.0, 71.25], [78.75, 71.35], [78.5, 71.25], [78.25, 71.35], [78.0, 71.25], [77.75, 71.35], [77.68, 71.32], [77.53, 70.97], [77.18, 70.82], [77.03, 70.47], [76.5, 70.25], [76.25, 70.35], [76.0, 70.25], [75.75, 70.35], [75.68, 70.32], [75.53, 69.97], [75.0, 69.75], [74.47, 69.97], [74.25, 70.5], [74.35, 70.75], [74.25, 71.0], [74.35, 71.25]]]]}, "2021-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.35, 71.25], [74.25, 71.5], [74.47, 72.03], [74.82, 72.18], [74.97, 72.53], [75.32, 72.68], [75.47, 73.03], [75.82, 73.18], [75.97, 73.53], [76.5, 73.75], [76.75, 73.65], [76.82, 73.68], [76.97, 74.03], [77.32, 74.18], [77.47, 74.53], [78.0, 74.75], [78.25, 74.65], [78.5, 74.75], [78.75, 74.65], [79.0, 74.75], [79.25, 74.65], [79.5, 74.75], [80.03, 74.53], [80.18, 74.18], [80.25, 74.15], [80.5, 74.25], [80.75, 74.15], [81.0, 74.25], [81.25, 74.15], [81.5, 74.25], [81.75, 74.15], [82.0, 74.25], [82.25, 74.15], [82.5, 74.25], [82.75, 74.15], [83.0, 74.25], [83.25, 74.15], [83.5, 74.25], [83.75, 74.15], [84.0, 74.25], [84.25, 74.15], [84.5, 74.25], [85.03, 74.03], [85.25, 73.5], [85.03, 72.97], [84.5, 72.75], [84.25, 72.85], [84.0, 72.75], [83.75, 72.85], [83.68, 72.82], [83.53, 72.47], [83.0, 72.25], [82.47, 72.47], [82.32, 72.82], [82.25, 72.85], [82.18, 72.82], [82.03, 72.47], [81.68, 72.32], [81.53, 71.97], [81.0, 71.75], [80.7, 71.88], [80.53, 71.47], [80.0, 71.25], [79.75, 71.35], [79.5, 71.25], [79.25, 71.35], [79.0, 71.25], [78.75, 71.35], [78.5, 71.25], [78.25, 71.35], [78.0, 71.25], [77.75, 71.35], [77.68, 71.32], [77.53, 70.97], [77.18, 70.82], [77.03, 70.47], [76.5, 70.25], [76.25, 70.35], [76.0, 70.25], [75.75, 70.35], [75.68, 70.32], [75.53, 69.97], [75.0, 69.75], [74.47, 69.97], [74.25, 70.5], [74.35, 70.75], [74.25, 71.0], [74.35, 71.25]]]]}, "2021-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.35, 71.25], [74.25, 71.5], [74.47, 72.03], [74.82, 72.18], [74.97, 72.53], [75.32, 72.68], [75.47, 73.03], [75.82, 73.18], [75.97, 73.53], [76.5, 73.75], [76.75, 73.65], [76.82, 73.68], [76.97, 74.03], [77.32, 74.18], [77.47, 74.53], [78.0, 74.75], [78.25, 74.65], [78.5, 74.75], [78.75, 74.65], [79.0, 74.75], [79.25, 74.65], [79.5, 74.75], [80.03, 74.53], [80.18, 74.18], [80.25, 74.15], [80.5, 74.25], [80.75, 74.15], [81.0, 74.25], [81.25, 74.15], [81.5, 74.25], [81.75, 74.15], [82.0, 74.25], [82.25, 74.15], [82.5, 74.25], [82.75, 74.15], [83.0, 74.25], [83.25, 74.15], [83.5, 74.25], [83.75, 74.15], [84.0, 74.25], [84.25, 74.15], [84.5, 74.25], [85.03, 74.03], [85.25, 73.5], [85.03, 72.97], [84.5, 72.75], [84.25, 72.85], [84.0, 72.75], [83.75, 72.85], [83.68, 72.82], [83.53, 72.47], [83.0, 72.25], [82.47, 72.47], [82.32, 72.82], [82.25, 72.85], [82.18, 72.82], [82.03, 72.47], [81.68, 72.32], [81.53, 71.97], [81.0, 71.75], [80.7, 71.88], [80.53, 71.47], [80.0, 71.25], [79.75, 71.35], [79.5, 71.25], [79.25, 71.35], [79.0, 71.25], [78.75, 71.35], [78.5, 71.25], [78.25, 71.35], [78.0, 71.25], [77.75, 71.35], [77.68, 71.32], [77.53, 70.97], [77.18, 70.82], [77.03, 70.47], [76.5, 70.25], [76.25, 70.35], [76.0, 70.25], [75.75, 70.35], [75.68, 70.32], [75.53, 69.97], [75.0, 69.75], [74.47, 69.97], [74.25, 70.5], [74.35, 70.75], [74.25, 71.0], [74.35, 71.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.905773739851156}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.16784335990961}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-3.272152651647616, -1.4771923647746803, -1.9212024467725541]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-1.8553913043808734, -0.3492173414653621, -0.1978500664363878]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.372297869942878, 8.87615324690769, 8.255078962878247]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.427984958144066, 10.219411655048702, 10.905773739851156]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.577771121570163, 2.0017224739133472, 1.9442356335318434]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7947623481611643, 2.096706700316117, 2.3857203658977135]}}