{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:04.836444", "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-Aug-21_to_2023-Aug-26_74.5_46.5"}, "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": 2023080002120}, "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": "August 21 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 26 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 123443.88096426988}, "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": ["Kazakhstan"]}, "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": 46.5}, "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": 74.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "74.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 73.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 81.5}, "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": 50.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[74.0, 45.25], [73.47, 45.47], [73.32, 45.82], [73.25, 45.85], [73.0, 45.75], [72.47, 45.97], [72.25, 46.5], [72.47, 47.03], [72.82, 47.18], [72.97, 47.53], [73.5, 47.75], [73.75, 47.65], [74.0, 47.75], [74.25, 47.65], [74.5, 47.75], [74.75, 47.65], [75.0, 47.75], [75.53, 47.53], [75.68, 47.18], [75.75, 47.15], [76.0, 47.25], [76.25, 47.15], [76.32, 47.18], [76.47, 47.53], [76.82, 47.68], [76.97, 48.03], [77.32, 48.18], [77.47, 48.53], [77.88, 48.7], [77.75, 49.0], [77.97, 49.53], [78.5, 49.75], [78.8, 49.63], [78.97, 50.03], [79.32, 50.18], [79.47, 50.53], [80.0, 50.75], [80.25, 50.65], [80.5, 50.75], [80.75, 50.65], [81.0, 50.75], [81.53, 50.53], [81.75, 50.0], [81.54, 49.5], [81.68, 49.18], [82.03, 49.03], [82.25, 48.5], [82.15, 48.25], [82.25, 48.0], [82.03, 47.47], [81.63, 47.3], [81.75, 47.0], [81.65, 46.75], [81.75, 46.5], [81.53, 45.97], [81.0, 45.75], [80.75, 45.85], [80.5, 45.75], [80.25, 45.85], [80.0, 45.75], [79.75, 45.85], [79.5, 45.75], [79.25, 45.85], [79.0, 45.75], [78.75, 45.85], [78.5, 45.75], [78.25, 45.85], [78.18, 45.82], [78.03, 45.47], [77.5, 45.25], [77.0, 45.46], [76.5, 45.25], [76.25, 45.35], [76.0, 45.25], [75.75, 45.35], [75.5, 45.25], [75.25, 45.35], [75.0, 45.25], [74.5, 45.46], [74.0, 45.25]], [[80.88, 47.7], [80.82, 47.82], [80.7, 47.88], [80.57, 47.57], [80.88, 47.7]]]]}}, "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": {"2023-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.5, 47.25], [74.75, 47.15], [75.0, 47.25], [75.53, 47.03], [75.75, 46.5], [75.53, 45.97], [75.0, 45.75], [74.75, 45.85], [74.68, 45.82], [74.53, 45.47], [74.0, 45.25], [73.47, 45.47], [73.25, 46.0], [73.47, 46.53], [73.82, 46.68], [73.97, 47.03], [74.5, 47.25]]], [[[78.5, 48.25], [77.97, 48.47], [77.75, 49.0], [77.97, 49.53], [78.5, 49.75], [79.03, 49.53], [79.25, 49.0], [79.03, 48.47], [78.5, 48.25]]]]}, "2023-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[72.97, 47.53], [73.5, 47.75], [73.75, 47.65], [74.0, 47.75], [74.25, 47.65], [74.5, 47.75], [74.75, 47.65], [75.0, 47.75], [75.53, 47.53], [75.68, 47.18], [75.75, 47.15], [76.0, 47.25], [76.25, 47.15], [76.5, 47.25], [76.75, 47.15], [77.0, 47.25], [77.25, 47.15], [77.32, 47.18], [77.47, 47.53], [78.0, 47.75], [78.25, 47.65], [78.5, 47.75], [78.75, 47.65], [78.88, 47.7], [78.82, 47.82], [78.47, 47.97], [78.32, 48.32], [77.97, 48.47], [77.75, 49.0], [77.97, 49.53], [78.5, 49.75], [78.8, 49.63], [78.97, 50.03], [79.32, 50.18], [79.47, 50.53], [80.0, 50.75], [80.25, 50.65], [80.5, 50.75], [80.75, 50.65], [81.0, 50.75], [81.53, 50.53], [81.75, 50.0], [81.53, 49.47], [81.18, 49.32], [81.15, 49.25], [81.25, 49.0], [81.03, 48.47], [80.68, 48.32], [80.53, 47.97], [80.18, 47.82], [80.04, 47.5], [80.25, 47.0], [80.03, 46.47], [79.68, 46.32], [79.53, 45.97], [79.0, 45.75], [78.75, 45.85], [78.5, 45.75], [78.25, 45.85], [78.0, 45.75], [77.75, 45.85], [77.5, 45.75], [77.25, 45.85], [77.18, 45.82], [77.03, 45.47], [76.5, 45.25], [76.25, 45.35], [76.0, 45.25], [75.75, 45.35], [75.5, 45.25], [75.25, 45.35], [75.0, 45.25], [74.5, 45.46], [74.0, 45.25], [73.47, 45.47], [73.32, 45.82], [73.25, 45.85], [73.0, 45.75], [72.47, 45.97], [72.25, 46.5], [72.47, 47.03], [72.82, 47.18], [72.97, 47.53]]]]}, "2023-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[72.97, 47.53], [73.5, 47.75], [73.75, 47.65], [74.0, 47.75], [74.25, 47.65], [74.5, 47.75], [74.75, 47.65], [75.0, 47.75], [75.53, 47.53], [75.68, 47.18], [75.75, 47.15], [76.0, 47.25], [76.25, 47.15], [76.32, 47.18], [76.47, 47.53], [76.82, 47.68], [76.97, 48.03], [77.32, 48.18], [77.47, 48.53], [77.88, 48.7], [77.75, 49.0], [77.97, 49.53], [78.5, 49.75], [78.8, 49.63], [78.97, 50.03], [79.32, 50.18], [79.47, 50.53], [80.0, 50.75], [80.25, 50.65], [80.5, 50.75], [80.75, 50.65], [81.0, 50.75], [81.53, 50.53], [81.75, 50.0], [81.54, 49.5], [81.68, 49.18], [82.03, 49.03], [82.25, 48.5], [82.15, 48.25], [82.25, 48.0], [82.03, 47.47], [81.63, 47.3], [81.75, 47.0], [81.53, 46.47], [81.18, 46.32], [81.03, 45.97], [80.5, 45.75], [80.25, 45.85], [80.0, 45.75], [79.75, 45.85], [79.5, 45.75], [79.25, 45.85], [79.0, 45.75], [78.75, 45.85], [78.5, 45.75], [78.25, 45.85], [78.18, 45.82], [78.03, 45.47], [77.5, 45.25], [77.0, 45.46], [76.5, 45.25], [76.25, 45.35], [76.0, 45.25], [75.75, 45.35], [75.5, 45.25], [75.25, 45.35], [75.0, 45.25], [74.5, 45.46], [74.0, 45.25], [73.47, 45.47], [73.32, 45.82], [73.25, 45.85], [73.0, 45.75], [72.47, 45.97], [72.25, 46.5], [72.47, 47.03], [72.82, 47.18], [72.97, 47.53]], [[80.88, 47.7], [80.82, 47.82], [80.7, 47.88], [80.57, 47.57], [80.88, 47.7]]]]}, "2023-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[72.97, 47.53], [73.5, 47.75], [73.75, 47.65], [74.0, 47.75], [74.25, 47.65], [74.5, 47.75], [74.75, 47.65], [75.0, 47.75], [75.53, 47.53], [75.68, 47.18], [75.75, 47.15], [76.0, 47.25], [76.25, 47.15], [76.32, 47.18], [76.47, 47.53], [76.82, 47.68], [76.97, 48.03], [77.32, 48.18], [77.47, 48.53], [77.88, 48.7], [77.75, 49.0], [77.97, 49.53], [78.5, 49.75], [78.8, 49.63], [78.97, 50.03], [79.32, 50.18], [79.47, 50.53], [80.0, 50.75], [80.25, 50.65], [80.5, 50.75], [80.75, 50.65], [81.0, 50.75], [81.53, 50.53], [81.75, 50.0], [81.54, 49.5], [81.68, 49.18], [82.03, 49.03], [82.25, 48.5], [82.15, 48.25], [82.25, 48.0], [82.03, 47.47], [81.63, 47.3], [81.75, 47.0], [81.65, 46.75], [81.75, 46.5], [81.53, 45.97], [81.0, 45.75], [80.75, 45.85], [80.5, 45.75], [80.25, 45.85], [80.0, 45.75], [79.75, 45.85], [79.5, 45.75], [79.25, 45.85], [79.0, 45.75], [78.75, 45.85], [78.5, 45.75], [78.25, 45.85], [78.18, 45.82], [78.03, 45.47], [77.5, 45.25], [77.0, 45.46], [76.5, 45.25], [76.25, 45.35], [76.0, 45.25], [75.75, 45.35], [75.5, 45.25], [75.25, 45.35], [75.0, 45.25], [74.5, 45.46], [74.0, 45.25], [73.47, 45.47], [73.32, 45.82], [73.25, 45.85], [73.0, 45.75], [72.47, 45.97], [72.25, 46.5], [72.47, 47.03], [72.82, 47.18], [72.97, 47.53]], [[80.88, 47.7], [80.82, 47.82], [80.7, 47.88], [80.57, 47.57], [80.88, 47.7]]]]}, "2023-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.25, 47.0], [76.47, 47.53], [76.82, 47.68], [76.97, 48.03], [77.32, 48.18], [77.47, 48.53], [78.0, 48.75], [78.25, 48.65], [78.5, 48.75], [79.0, 48.54], [79.32, 48.68], [79.47, 49.03], [79.82, 49.18], [79.97, 49.53], [80.5, 49.75], [80.75, 49.65], [81.0, 49.75], [81.53, 49.53], [81.68, 49.18], [82.03, 49.03], [82.25, 48.5], [82.15, 48.25], [82.25, 48.0], [82.03, 47.47], [81.63, 47.3], [81.75, 47.0], [81.65, 46.75], [81.75, 46.5], [81.53, 45.97], [81.0, 45.75], [80.75, 45.85], [80.5, 45.75], [80.25, 45.85], [80.0, 45.75], [79.75, 45.85], [79.5, 45.75], [79.25, 45.85], [79.0, 45.75], [78.75, 45.85], [78.5, 45.75], [78.25, 45.85], [78.18, 45.82], [78.03, 45.47], [77.5, 45.25], [76.97, 45.47], [76.82, 45.82], [76.47, 45.97], [76.25, 46.5], [76.35, 46.75], [76.25, 47.0]], [[80.88, 47.7], [80.82, 47.82], [80.7, 47.88], [80.57, 47.57], [80.88, 47.7]]]]}, "2023-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.47, 47.03], [81.0, 47.25], [81.53, 47.03], [81.75, 46.5], [81.53, 45.97], [81.0, 45.75], [80.47, 45.97], [80.25, 46.5], [80.47, 47.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.320862453648147}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.354730941721864}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.88362454349317, 26.36525556032268, 26.12992909644288, 26.925976079686222, 25.72790037588345, 27.528971246547485]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.401877873857813, 29.16273605354212, 29.304424665159956, 30.060425243352768, 28.87985080465222, 27.528971246547485]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.1424437862710874, 4.706803806358998, 5.154781006556426, 6.158613814789032, 5.196631848674716, 4.2103875065024]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.690129412420106, 5.317600829892285, 6.116164729976845, 7.320862453648147, 7.194759657738871, 4.2103875065024]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4204482279170998, 1.483918178547094, 1.6528217726282088, 1.9926058824684665, 1.6709638587931348, 1.5204696604262224]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4742957977448579, 1.70627320969349, 2.0935742717282655, 2.305987176363902, 2.284091166936619, 1.5204696604262224]}}