{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:09.205838", "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-Mar-25_to_2023-Mar-29_82.0_53.5"}, "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": 2023030002421}, "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": "March 25 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 29 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 81327.37553987118}, "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": 53.5}, "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": 82.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "82.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 79.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 84.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[79.25, 53.65], [79.32, 53.68], [79.35, 53.75], [79.25, 54.0], [79.47, 54.53], [80.0, 54.75], [80.25, 54.65], [80.5, 54.75], [80.75, 54.65], [81.0, 54.75], [81.25, 54.65], [81.5, 54.75], [81.75, 54.65], [81.82, 54.68], [81.97, 55.03], [82.5, 55.25], [82.75, 55.15], [83.0, 55.25], [83.25, 55.15], [83.5, 55.25], [84.03, 55.03], [84.18, 54.68], [84.25, 54.65], [84.5, 54.75], [85.03, 54.53], [85.25, 54.0], [85.15, 53.75], [85.25, 53.5], [85.03, 52.97], [84.5, 52.75], [84.25, 52.85], [84.0, 52.75], [83.75, 52.85], [83.68, 52.82], [83.65, 52.75], [83.75, 52.5], [83.53, 51.97], [83.0, 51.75], [82.75, 51.85], [82.68, 51.82], [82.53, 51.47], [82.0, 51.25], [81.75, 51.35], [81.5, 51.25], [81.25, 51.35], [81.0, 51.25], [80.47, 51.47], [80.32, 51.82], [80.25, 51.85], [80.0, 51.75], [79.75, 51.85], [79.5, 51.75], [79.25, 51.85], [79.0, 51.75], [78.47, 51.97], [78.25, 52.5], [78.35, 52.75], [78.25, 53.0], [78.47, 53.53], [79.0, 53.75], [79.25, 53.65]]]]}}, "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": {"2023-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.25, 53.0], [78.47, 53.53], [79.0, 53.75], [79.25, 53.65], [79.32, 53.68], [79.35, 53.75], [79.25, 54.0], [79.47, 54.53], [80.0, 54.75], [80.25, 54.65], [80.5, 54.75], [80.75, 54.65], [81.0, 54.75], [81.25, 54.65], [81.5, 54.75], [82.03, 54.53], [82.18, 54.18], [82.53, 54.03], [82.75, 53.5], [82.53, 52.97], [82.18, 52.82], [82.03, 52.47], [81.5, 52.25], [81.25, 52.35], [81.0, 52.25], [80.75, 52.35], [80.5, 52.25], [80.25, 52.35], [80.18, 52.32], [80.03, 51.97], [79.5, 51.75], [79.25, 51.85], [79.0, 51.75], [78.47, 51.97], [78.25, 52.5], [78.35, 52.75], [78.25, 53.0]]]]}, "2023-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.25, 53.0], [78.47, 53.53], [79.0, 53.75], [79.25, 53.65], [79.32, 53.68], [79.35, 53.75], [79.25, 54.0], [79.47, 54.53], [80.0, 54.75], [80.25, 54.65], [80.5, 54.75], [80.75, 54.65], [81.0, 54.75], [81.25, 54.65], [81.5, 54.75], [81.75, 54.65], [81.82, 54.68], [81.97, 55.03], [82.5, 55.25], [82.75, 55.15], [83.0, 55.25], [83.25, 55.15], [83.5, 55.25], [84.03, 55.03], [84.18, 54.68], [84.53, 54.53], [84.75, 54.0], [84.53, 53.47], [84.0, 53.25], [83.75, 53.35], [83.68, 53.32], [83.54, 53.0], [83.75, 52.5], [83.53, 51.97], [83.0, 51.75], [82.75, 51.85], [82.68, 51.82], [82.53, 51.47], [82.0, 51.25], [81.75, 51.35], [81.5, 51.25], [81.25, 51.35], [81.0, 51.25], [80.47, 51.47], [80.32, 51.82], [80.25, 51.85], [80.0, 51.75], [79.75, 51.85], [79.5, 51.75], [79.25, 51.85], [79.0, 51.75], [78.47, 51.97], [78.25, 52.5], [78.35, 52.75], [78.25, 53.0]]]]}, "2023-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.25, 53.0], [78.47, 53.53], [79.0, 53.75], [79.25, 53.65], [79.32, 53.68], [79.35, 53.75], [79.25, 54.0], [79.47, 54.53], [80.0, 54.75], [80.25, 54.65], [80.5, 54.75], [80.75, 54.65], [81.0, 54.75], [81.25, 54.65], [81.5, 54.75], [81.75, 54.65], [81.82, 54.68], [81.97, 55.03], [82.5, 55.25], [82.75, 55.15], [83.0, 55.25], [83.25, 55.15], [83.5, 55.25], [84.03, 55.03], [84.18, 54.68], [84.25, 54.65], [84.5, 54.75], [85.03, 54.53], [85.25, 54.0], [85.15, 53.75], [85.25, 53.5], [85.03, 52.97], [84.5, 52.75], [84.25, 52.85], [84.0, 52.75], [83.75, 52.85], [83.68, 52.82], [83.65, 52.75], [83.75, 52.5], [83.53, 51.97], [83.0, 51.75], [82.75, 51.85], [82.68, 51.82], [82.53, 51.47], [82.0, 51.25], [81.75, 51.35], [81.5, 51.25], [81.25, 51.35], [81.0, 51.25], [80.47, 51.47], [80.32, 51.82], [80.25, 51.85], [80.0, 51.75], [79.75, 51.85], [79.5, 51.75], [79.25, 51.85], [79.0, 51.75], [78.47, 51.97], [78.25, 52.5], [78.35, 52.75], [78.25, 53.0]]]]}, "2023-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.25, 53.0], [78.47, 53.53], [79.0, 53.75], [79.25, 53.65], [79.32, 53.68], [79.35, 53.75], [79.25, 54.0], [79.47, 54.53], [80.0, 54.75], [80.25, 54.65], [80.5, 54.75], [80.75, 54.65], [81.0, 54.75], [81.25, 54.65], [81.5, 54.75], [81.75, 54.65], [81.82, 54.68], [81.97, 55.03], [82.5, 55.25], [82.75, 55.15], [83.0, 55.25], [83.25, 55.15], [83.5, 55.25], [84.03, 55.03], [84.18, 54.68], [84.25, 54.65], [84.5, 54.75], [85.03, 54.53], [85.25, 54.0], [85.15, 53.75], [85.25, 53.5], [85.03, 52.97], [84.5, 52.75], [84.25, 52.85], [84.0, 52.75], [83.75, 52.85], [83.68, 52.82], [83.65, 52.75], [83.75, 52.5], [83.53, 51.97], [83.0, 51.75], [82.75, 51.85], [82.68, 51.82], [82.53, 51.47], [82.0, 51.25], [81.75, 51.35], [81.5, 51.25], [81.25, 51.35], [81.0, 51.25], [80.47, 51.47], [80.32, 51.82], [80.25, 51.85], [80.0, 51.75], [79.75, 51.85], [79.5, 51.75], [79.25, 51.85], [79.0, 51.75], [78.47, 51.97], [78.25, 52.5], [78.35, 52.75], [78.25, 53.0]]]]}, "2023-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.25, 53.0], [78.47, 53.53], [79.0, 53.75], [79.25, 53.65], [79.32, 53.68], [79.35, 53.75], [79.25, 54.0], [79.47, 54.53], [80.0, 54.75], [80.25, 54.65], [80.5, 54.75], [80.75, 54.65], [81.0, 54.75], [81.25, 54.65], [81.5, 54.75], [81.75, 54.65], [81.82, 54.68], [81.97, 55.03], [82.5, 55.25], [82.75, 55.15], [83.0, 55.25], [83.25, 55.15], [83.5, 55.25], [84.03, 55.03], [84.18, 54.68], [84.25, 54.65], [84.5, 54.75], [85.03, 54.53], [85.25, 54.0], [85.15, 53.75], [85.25, 53.5], [85.03, 52.97], [84.5, 52.75], [84.25, 52.85], [84.0, 52.75], [83.75, 52.85], [83.68, 52.82], [83.65, 52.75], [83.75, 52.5], [83.53, 51.97], [83.0, 51.75], [82.75, 51.85], [82.68, 51.82], [82.53, 51.47], [82.0, 51.25], [81.75, 51.35], [81.5, 51.25], [81.25, 51.35], [81.0, 51.25], [80.47, 51.47], [80.32, 51.82], [80.25, 51.85], [80.0, 51.75], [79.75, 51.85], [79.5, 51.75], [79.25, 51.85], [79.0, 51.75], [78.47, 51.97], [78.25, 52.5], [78.35, 52.75], [78.25, 53.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.42498173670856}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.13389702456719}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.0342442463153247, 4.956933053921716, 3.910954274209246, 5.784722945346232, 7.386333121320092]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.9673740752990057, 6.399184074737775, 6.687035262684617, 7.929812446088874, 9.011706881799455]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.108033678548114, 7.25984166186664, 5.802688592915313, 7.312154979869154, 8.571571046999962]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.054392867176944, 9.111509321020037, 7.13621682888089, 9.259307826010172, 10.42498173670856]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1997421770686167, 1.4549659756287532, 1.2022486918459592, 1.5915519909623812, 1.9237856528162511]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.38497472714051, 1.8633867990978978, 1.4796208325173739, 2.0324241177895552, 2.3755821896608635]}}