{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:04.681366", "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-Aug-12_to_2021-Aug-15_109.5_58.0"}, "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": 2021080002066}, "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 12 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 15 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 50186.29772885963}, "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": ["E.Siberia"]}, "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": 58.0}, "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": 109.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "109.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 105.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 109.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 54.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 58.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.0, 56.75], [106.53, 56.53], [106.75, 56.0], [106.53, 55.47], [106.0, 55.25], [105.47, 55.47], [105.25, 56.0], [105.47, 56.53], [106.0, 56.75]]]]}, "2021-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.25, 56.0], [105.47, 56.53], [105.82, 56.68], [105.97, 57.03], [106.5, 57.25], [107.03, 57.03], [107.2, 56.63], [107.32, 56.68], [107.35, 56.75], [107.25, 57.0], [107.35, 57.25], [107.25, 57.5], [107.47, 58.03], [108.0, 58.25], [108.25, 58.15], [108.5, 58.25], [108.75, 58.15], [108.82, 58.18], [108.97, 58.53], [109.5, 58.75], [110.03, 58.53], [110.25, 58.0], [110.15, 57.75], [110.25, 57.5], [110.03, 56.97], [109.5, 56.75], [109.25, 56.85], [109.18, 56.82], [109.15, 56.75], [109.25, 56.5], [109.04, 56.0], [109.25, 55.5], [109.15, 55.25], [109.25, 55.0], [109.03, 54.47], [108.5, 54.25], [108.25, 54.35], [108.18, 54.32], [108.03, 53.97], [107.5, 53.75], [107.25, 53.85], [107.0, 53.75], [106.47, 53.97], [106.32, 54.32], [106.25, 54.35], [106.0, 54.25], [105.75, 54.35], [105.5, 54.25], [104.97, 54.47], [104.75, 55.0], [104.97, 55.53], [105.32, 55.68], [105.35, 55.75], [105.25, 56.0]]]]}, "2021-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.25, 56.0], [105.47, 56.53], [105.82, 56.68], [105.97, 57.03], [106.5, 57.25], [107.03, 57.03], [107.2, 56.63], [107.32, 56.68], [107.35, 56.75], [107.25, 57.0], [107.35, 57.25], [107.25, 57.5], [107.47, 58.03], [108.0, 58.25], [108.25, 58.15], [108.5, 58.25], [108.75, 58.15], [108.82, 58.18], [108.97, 58.53], [109.5, 58.75], [110.03, 58.53], [110.25, 58.0], [110.15, 57.75], [110.25, 57.5], [110.03, 56.97], [109.5, 56.75], [109.25, 56.85], [109.18, 56.82], [109.15, 56.75], [109.25, 56.5], [109.04, 56.0], [109.25, 55.5], [109.15, 55.25], [109.25, 55.0], [109.03, 54.47], [108.5, 54.25], [108.25, 54.35], [108.18, 54.32], [108.03, 53.97], [107.5, 53.75], [107.25, 53.85], [107.0, 53.75], [106.47, 53.97], [106.32, 54.32], [106.25, 54.35], [106.0, 54.25], [105.75, 54.35], [105.5, 54.25], [104.97, 54.47], [104.75, 55.0], [104.97, 55.53], [105.32, 55.68], [105.35, 55.75], [105.25, 56.0]]]]}, "2021-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.82, 56.18], [105.85, 56.25], [105.75, 56.5], [105.97, 57.03], [106.5, 57.25], [107.03, 57.03], [107.2, 56.63], [107.32, 56.68], [107.35, 56.75], [107.25, 57.0], [107.35, 57.25], [107.25, 57.5], [107.47, 58.03], [108.0, 58.25], [108.25, 58.15], [108.5, 58.25], [108.75, 58.15], [108.82, 58.18], [108.97, 58.53], [109.5, 58.75], [110.03, 58.53], [110.25, 58.0], [110.15, 57.75], [110.25, 57.5], [110.03, 56.97], [109.5, 56.75], [109.25, 56.85], [109.18, 56.82], [109.15, 56.75], [109.25, 56.5], [109.04, 56.0], [109.25, 55.5], [109.15, 55.25], [109.25, 55.0], [109.03, 54.47], [108.5, 54.25], [108.25, 54.35], [108.18, 54.32], [108.03, 53.97], [107.5, 53.75], [107.25, 53.85], [107.0, 53.75], [106.47, 53.97], [106.32, 54.32], [106.25, 54.35], [106.0, 54.25], [105.75, 54.35], [105.5, 54.25], [104.97, 54.47], [104.75, 55.0], [104.97, 55.53], [105.32, 55.68], [105.47, 56.03], [105.82, 56.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.279618600223557}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.937483557442712}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.485599238948282, 20.216708209009596, 19.834495667132558, 20.498958321031978]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.485599238948282, 22.52242217490658, 21.421133857298457, 22.229299961066943]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.163698562480988, 4.861430469157189, 4.615002023960231, 5.377886736951063]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.163698562480988, 5.824372287066353, 5.057898757699206, 6.279618600223557]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3230398241488088, 1.5480946757621015, 1.4506914367853492, 1.6988912748344664]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3230398241488088, 1.9212763900009713, 1.5843653372162982, 1.9824410933541141]}}