{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:38.777427", "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": "2023-Jul-19_to_2023-Jul-21_74.0_67.0"}, "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": 2023070002303}, "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": "July 19 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2023"}, "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": 59624.86155715092}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 67.0}, "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": 74.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "74.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 67.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 76.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 66.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 68.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[66.75, 67.5], [66.97, 68.03], [67.5, 68.25], [67.75, 68.15], [68.0, 68.25], [68.25, 68.15], [68.5, 68.25], [68.75, 68.15], [69.0, 68.25], [69.25, 68.15], [69.32, 68.18], [69.47, 68.53], [70.0, 68.75], [70.25, 68.65], [70.5, 68.75], [70.75, 68.65], [71.0, 68.75], [71.53, 68.53], [71.68, 68.18], [72.03, 68.03], [72.25, 67.5], [72.13, 67.2], [72.25, 67.15], [72.5, 67.25], [72.75, 67.15], [73.0, 67.25], [73.25, 67.15], [73.32, 67.18], [73.47, 67.53], [74.0, 67.75], [74.25, 67.65], [74.5, 67.75], [74.75, 67.65], [75.0, 67.75], [75.25, 67.65], [75.5, 67.75], [75.75, 67.65], [76.0, 67.75], [76.53, 67.53], [76.68, 67.18], [77.03, 67.03], [77.25, 66.5], [77.03, 65.97], [76.5, 65.75], [76.25, 65.85], [76.0, 65.75], [75.75, 65.85], [75.5, 65.75], [75.25, 65.85], [75.18, 65.82], [75.03, 65.47], [74.5, 65.25], [74.25, 65.35], [74.0, 65.25], [73.75, 65.35], [73.5, 65.25], [73.25, 65.35], [73.0, 65.25], [72.75, 65.35], [72.5, 65.25], [72.25, 65.35], [72.0, 65.25], [71.75, 65.35], [71.5, 65.25], [71.25, 65.35], [71.0, 65.25], [70.75, 65.35], [70.5, 65.25], [69.97, 65.47], [69.75, 66.0], [69.88, 66.3], [69.75, 66.35], [69.68, 66.32], [69.53, 65.97], [69.0, 65.75], [68.75, 65.85], [68.5, 65.75], [68.25, 65.85], [68.0, 65.75], [67.75, 65.85], [67.5, 65.75], [66.97, 65.97], [66.75, 66.5], [66.85, 66.75], [66.75, 67.0], [66.85, 67.25], [66.75, 67.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Arctic"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[66.75, 67.0], [66.85, 67.25], [66.75, 67.5], [66.97, 68.03], [67.5, 68.25], [67.75, 68.15], [68.0, 68.25], [68.25, 68.15], [68.5, 68.25], [68.75, 68.15], [69.0, 68.25], [69.25, 68.15], [69.32, 68.18], [69.47, 68.53], [70.0, 68.75], [70.25, 68.65], [70.5, 68.75], [70.75, 68.65], [71.0, 68.75], [71.53, 68.53], [71.68, 68.18], [72.03, 68.03], [72.25, 67.5], [72.13, 67.2], [72.25, 67.15], [72.5, 67.25], [72.75, 67.15], [73.0, 67.25], [73.25, 67.15], [73.32, 67.18], [73.47, 67.53], [74.0, 67.75], [74.25, 67.65], [74.5, 67.75], [74.75, 67.65], [75.0, 67.75], [75.25, 67.65], [75.5, 67.75], [75.75, 67.65], [76.0, 67.75], [76.53, 67.53], [76.68, 67.18], [77.03, 67.03], [77.25, 66.5], [77.03, 65.97], [76.5, 65.75], [76.25, 65.85], [76.0, 65.75], [75.75, 65.85], [75.5, 65.75], [75.25, 65.85], [75.18, 65.82], [75.03, 65.47], [74.5, 65.25], [74.25, 65.35], [74.0, 65.25], [73.75, 65.35], [73.5, 65.25], [73.25, 65.35], [73.0, 65.25], [72.75, 65.35], [72.5, 65.25], [72.25, 65.35], [72.0, 65.25], [71.75, 65.35], [71.5, 65.25], [71.25, 65.35], [71.0, 65.25], [70.75, 65.35], [70.5, 65.25], [69.97, 65.47], [69.75, 66.0], [69.88, 66.3], [69.75, 66.35], [69.68, 66.32], [69.53, 65.97], [69.0, 65.75], [68.75, 65.85], [68.5, 65.75], [68.25, 65.85], [68.0, 65.75], [67.75, 65.85], [67.5, 65.75], [66.97, 65.97], [66.75, 66.5], [66.85, 66.75], [66.75, 67.0]]]]}, "2023-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[66.75, 67.0], [66.85, 67.25], [66.75, 67.5], [66.97, 68.03], [67.5, 68.25], [67.75, 68.15], [68.0, 68.25], [68.25, 68.15], [68.5, 68.25], [68.75, 68.15], [69.0, 68.25], [69.25, 68.15], [69.32, 68.18], [69.47, 68.53], [70.0, 68.75], [70.25, 68.65], [70.5, 68.75], [70.75, 68.65], [71.0, 68.75], [71.53, 68.53], [71.68, 68.18], [72.03, 68.03], [72.25, 67.5], [72.13, 67.2], [72.25, 67.15], [72.5, 67.25], [72.75, 67.15], [73.0, 67.25], [73.25, 67.15], [73.32, 67.18], [73.47, 67.53], [74.0, 67.75], [74.25, 67.65], [74.5, 67.75], [74.75, 67.65], [75.0, 67.75], [75.25, 67.65], [75.5, 67.75], [75.75, 67.65], [76.0, 67.75], [76.53, 67.53], [76.68, 67.18], [77.03, 67.03], [77.25, 66.5], [77.03, 65.97], [76.5, 65.75], [76.25, 65.85], [76.0, 65.75], [75.75, 65.85], [75.5, 65.75], [75.25, 65.85], [75.18, 65.82], [75.03, 65.47], [74.5, 65.25], [74.25, 65.35], [74.0, 65.25], [73.75, 65.35], [73.5, 65.25], [73.25, 65.35], [73.0, 65.25], [72.75, 65.35], [72.5, 65.25], [72.25, 65.35], [72.0, 65.25], [71.75, 65.35], [71.5, 65.25], [71.25, 65.35], [71.0, 65.25], [70.75, 65.35], [70.5, 65.25], [69.97, 65.47], [69.75, 66.0], [69.88, 66.3], [69.75, 66.35], [69.68, 66.32], [69.53, 65.97], [69.0, 65.75], [68.75, 65.85], [68.5, 65.75], [68.25, 65.85], [68.0, 65.75], [67.75, 65.85], [67.5, 65.75], [66.97, 65.97], [66.75, 66.5], [66.85, 66.75], [66.75, 67.0]]]]}, "2023-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[66.75, 67.0], [66.85, 67.25], [66.75, 67.5], [66.97, 68.03], [67.5, 68.25], [67.75, 68.15], [68.0, 68.25], [68.25, 68.15], [68.5, 68.25], [68.75, 68.15], [69.0, 68.25], [69.25, 68.15], [69.32, 68.18], [69.47, 68.53], [70.0, 68.75], [70.25, 68.65], [70.5, 68.75], [70.75, 68.65], [71.0, 68.75], [71.53, 68.53], [71.68, 68.18], [72.03, 68.03], [72.25, 67.5], [72.13, 67.2], [72.25, 67.15], [72.5, 67.25], [72.75, 67.15], [73.0, 67.25], [73.25, 67.15], [73.32, 67.18], [73.47, 67.53], [74.0, 67.75], [74.25, 67.65], [74.5, 67.75], [74.75, 67.65], [75.0, 67.75], [75.25, 67.65], [75.5, 67.75], [75.75, 67.65], [76.0, 67.75], [76.53, 67.53], [76.68, 67.18], [77.03, 67.03], [77.25, 66.5], [77.03, 65.97], [76.5, 65.75], [76.25, 65.85], [76.0, 65.75], [75.75, 65.85], [75.5, 65.75], [75.25, 65.85], [75.18, 65.82], [75.03, 65.47], [74.5, 65.25], [74.25, 65.35], [74.0, 65.25], [73.75, 65.35], [73.5, 65.25], [73.25, 65.35], [73.0, 65.25], [72.75, 65.35], [72.5, 65.25], [72.25, 65.35], [72.0, 65.25], [71.75, 65.35], [71.5, 65.25], [71.25, 65.35], [71.0, 65.25], [70.75, 65.35], [70.5, 65.25], [69.97, 65.47], [69.75, 66.0], [69.88, 66.3], [69.75, 66.35], [69.68, 66.32], [69.53, 65.97], [69.0, 65.75], [68.75, 65.85], [68.5, 65.75], [68.25, 65.85], [68.0, 65.75], [67.75, 65.85], [67.5, 65.75], [66.97, 65.97], [66.75, 66.5], [66.85, 66.75], [66.75, 67.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.5884873620887}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.678660691255898}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.739610902775212, 24.137927778461346, 23.453164980929728]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.47192534189611, 26.212251923856343, 25.891321764365898]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.522116076524773, 9.066043351950606, 8.447822645292309]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.051012747601078, 11.5884873620887, 11.579648931549514]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6244743285705414, 1.7270996282372548, 1.653471795776854]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9302554729260006, 2.0211364092393995, 2.0739968076552704]}}