{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:47.097702", "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-Oct-20_to_2023-Oct-22_79.0_46.0"}, "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": 2023100001802}, "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 20 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 22 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": 71751.11607066292}, "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": ["China", "Kazakhstan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": 46.0}, "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": 79.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "79.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 77.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 83.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[76.25, 46.5], [76.47, 47.03], [77.0, 47.25], [77.25, 47.15], [77.38, 47.2], [77.25, 47.5], [77.47, 48.03], [77.82, 48.18], [77.97, 48.53], [78.5, 48.75], [78.75, 48.65], [79.0, 48.75], [79.5, 48.54], [80.0, 48.75], [80.53, 48.53], [80.68, 48.18], [80.75, 48.15], [81.0, 48.25], [81.25, 48.15], [81.5, 48.25], [82.03, 48.03], [82.18, 47.68], [82.25, 47.65], [82.5, 47.75], [82.75, 47.65], [83.0, 47.75], [83.25, 47.65], [83.5, 47.75], [84.03, 47.53], [84.25, 47.0], [84.03, 46.47], [83.5, 46.25], [83.25, 46.35], [83.0, 46.25], [82.75, 46.35], [82.68, 46.32], [82.65, 46.25], [82.75, 46.0], [82.53, 45.47], [82.0, 45.25], [81.47, 45.47], [81.32, 45.82], [81.25, 45.85], [81.0, 45.75], [80.47, 45.97], [80.32, 46.32], [80.25, 46.35], [80.18, 46.32], [80.15, 46.25], [80.25, 46.0], [80.03, 45.47], [79.5, 45.25], [79.25, 45.35], [79.0, 45.25], [78.75, 45.35], [78.5, 45.25], [77.97, 45.47], [77.82, 45.82], [77.75, 45.85], [77.5, 45.75], [77.25, 45.85], [77.0, 45.75], [76.47, 45.97], [76.25, 46.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.0, 45.75], [76.47, 45.97], [76.25, 46.5], [76.47, 47.03], [77.0, 47.25], [77.25, 47.15], [77.38, 47.2], [77.25, 47.5], [77.47, 48.03], [77.82, 48.18], [77.97, 48.53], [78.5, 48.75], [78.75, 48.65], [79.0, 48.75], [79.5, 48.54], [80.0, 48.75], [80.53, 48.53], [80.68, 48.18], [80.75, 48.15], [81.0, 48.25], [81.25, 48.15], [81.5, 48.25], [82.03, 48.03], [82.18, 47.68], [82.25, 47.65], [82.5, 47.75], [82.75, 47.65], [83.0, 47.75], [83.25, 47.65], [83.5, 47.75], [84.03, 47.53], [84.25, 47.0], [84.03, 46.47], [83.5, 46.25], [83.25, 46.35], [83.0, 46.25], [82.75, 46.35], [82.68, 46.32], [82.65, 46.25], [82.75, 46.0], [82.53, 45.47], [82.0, 45.25], [81.47, 45.47], [81.32, 45.82], [81.25, 45.85], [81.0, 45.75], [80.47, 45.97], [80.32, 46.32], [80.25, 46.35], [80.18, 46.32], [80.15, 46.25], [80.25, 46.0], [80.03, 45.47], [79.5, 45.25], [79.25, 45.35], [79.0, 45.25], [78.75, 45.35], [78.5, 45.25], [77.97, 45.47], [77.82, 45.82], [77.75, 45.85], [77.5, 45.75], [77.25, 45.85], [77.0, 45.75]]]]}, "2023-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.0, 45.75], [76.47, 45.97], [76.25, 46.5], [76.47, 47.03], [77.0, 47.25], [77.25, 47.15], [77.38, 47.2], [77.25, 47.5], [77.47, 48.03], [77.82, 48.18], [77.97, 48.53], [78.5, 48.75], [78.75, 48.65], [79.0, 48.75], [79.5, 48.54], [80.0, 48.75], [80.53, 48.53], [80.68, 48.18], [80.75, 48.15], [81.0, 48.25], [81.25, 48.15], [81.5, 48.25], [82.03, 48.03], [82.18, 47.68], [82.25, 47.65], [82.5, 47.75], [82.75, 47.65], [83.0, 47.75], [83.25, 47.65], [83.5, 47.75], [84.03, 47.53], [84.25, 47.0], [84.03, 46.47], [83.5, 46.25], [83.25, 46.35], [83.0, 46.25], [82.75, 46.35], [82.68, 46.32], [82.65, 46.25], [82.75, 46.0], [82.53, 45.47], [82.0, 45.25], [81.47, 45.47], [81.32, 45.82], [81.25, 45.85], [81.0, 45.75], [80.47, 45.97], [80.32, 46.32], [80.25, 46.35], [80.18, 46.32], [80.15, 46.25], [80.25, 46.0], [80.03, 45.47], [79.5, 45.25], [79.25, 45.35], [79.0, 45.25], [78.75, 45.35], [78.5, 45.25], [77.97, 45.47], [77.82, 45.82], [77.75, 45.85], [77.5, 45.75], [77.25, 45.85], [77.0, 45.75]]]]}, "2023-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.0, 45.75], [76.47, 45.97], [76.25, 46.5], [76.47, 47.03], [77.0, 47.25], [77.25, 47.15], [77.38, 47.2], [77.25, 47.5], [77.47, 48.03], [77.82, 48.18], [77.97, 48.53], [78.5, 48.75], [78.75, 48.65], [79.0, 48.75], [79.5, 48.54], [80.0, 48.75], [80.53, 48.53], [80.68, 48.18], [80.75, 48.15], [81.0, 48.25], [81.25, 48.15], [81.5, 48.25], [82.03, 48.03], [82.18, 47.68], [82.25, 47.65], [82.5, 47.75], [82.75, 47.65], [83.0, 47.75], [83.25, 47.65], [83.5, 47.75], [84.03, 47.53], [84.25, 47.0], [84.03, 46.47], [83.5, 46.25], [83.25, 46.35], [83.0, 46.25], [82.75, 46.35], [82.68, 46.32], [82.65, 46.25], [82.75, 46.0], [82.53, 45.47], [82.0, 45.25], [81.47, 45.47], [81.32, 45.82], [81.25, 45.85], [81.0, 45.75], [80.47, 45.97], [80.32, 46.32], [80.25, 46.35], [80.18, 46.32], [80.15, 46.25], [80.25, 46.0], [80.03, 45.47], [79.5, 45.25], [79.25, 45.35], [79.0, 45.25], [78.75, 45.35], [78.5, 45.25], [77.97, 45.47], [77.82, 45.82], [77.75, 45.85], [77.5, 45.75], [77.25, 45.85], [77.0, 45.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.83964320454362}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.244877585791831}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.650074054382799, 11.62164165350572, 12.464248803956423]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.561431980009388, 15.19274263765027, 15.64125908399177]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.584474090544353, 5.949556987190829, 7.200601679640317]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.493258539720841, 7.329398928786986, 8.83964320454362]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4314988596545024, 1.4725623069210751, 1.778484256616801]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6498416640692832, 1.7907138545122954, 2.1318567521391243]}}