{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:01.135686", "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": "2020-Aug-09_to_2020-Aug-12_93.0_-79.0"}, "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": 2020080000358}, "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 09 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 12 2020"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 67635.74749543202}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -79.0}, "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": 93.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "93.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 79.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 102.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -79.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -77.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.97, -78.53], [78.75, -78.0], [78.97, -77.47], [79.5, -77.25], [79.75, -77.35], [80.0, -77.25], [80.25, -77.35], [80.5, -77.25], [80.75, -77.35], [81.0, -77.25], [81.25, -77.35], [81.5, -77.25], [81.75, -77.35], [82.0, -77.25], [82.25, -77.35], [82.5, -77.25], [82.75, -77.35], [83.0, -77.25], [83.25, -77.35], [83.5, -77.25], [83.75, -77.35], [84.0, -77.25], [84.25, -77.35], [84.5, -77.25], [84.75, -77.35], [85.0, -77.25], [85.25, -77.35], [85.5, -77.25], [85.75, -77.35], [86.0, -77.25], [86.25, -77.35], [86.5, -77.25], [86.75, -77.35], [87.0, -77.25], [87.25, -77.35], [87.5, -77.25], [87.75, -77.35], [88.0, -77.25], [88.25, -77.35], [88.5, -77.25], [88.75, -77.35], [89.0, -77.25], [89.25, -77.35], [89.5, -77.25], [89.75, -77.35], [90.0, -77.25], [90.25, -77.35], [90.5, -77.25], [91.03, -77.47], [91.25, -78.0], [91.13, -78.3], [91.25, -78.35], [91.5, -78.25], [91.75, -78.35], [92.0, -78.25], [92.25, -78.35], [92.5, -78.25], [92.75, -78.35], [93.0, -78.25], [93.53, -78.47], [93.75, -79.0], [93.53, -79.53], [93.0, -79.75], [92.75, -79.65], [92.5, -79.75], [92.25, -79.65], [92.0, -79.75], [91.75, -79.65], [91.5, -79.75], [91.25, -79.65], [91.0, -79.75], [90.75, -79.65], [90.5, -79.75], [90.25, -79.65], [90.0, -79.75], [89.75, -79.65], [89.5, -79.75], [89.25, -79.65], [89.0, -79.75], [88.75, -79.65], [88.5, -79.75], [88.25, -79.65], [88.0, -79.75], [87.75, -79.65], [87.5, -79.75], [86.97, -79.53], [86.82, -79.18], [86.75, -79.15], [86.5, -79.25], [86.25, -79.15], [86.0, -79.25], [85.75, -79.15], [85.5, -79.25], [85.25, -79.15], [85.0, -79.25], [84.75, -79.15], [84.5, -79.25], [84.25, -79.15], [84.0, -79.25], [83.75, -79.15], [83.5, -79.25], [83.25, -79.15], [83.0, -79.25], [82.47, -79.03], [82.32, -78.68], [82.25, -78.65], [82.0, -78.75], [81.75, -78.65], [81.5, -78.75], [81.25, -78.65], [81.0, -78.75], [80.75, -78.65], [80.5, -78.75], [80.25, -78.65], [80.0, -78.75], [79.75, -78.65], [79.5, -78.75], [78.97, -78.53]]]]}, "2020-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.97, -78.53], [78.75, -78.0], [78.97, -77.47], [79.5, -77.25], [79.75, -77.35], [80.0, -77.25], [80.25, -77.35], [80.5, -77.25], [80.75, -77.35], [81.0, -77.25], [81.25, -77.35], [81.5, -77.25], [81.75, -77.35], [82.0, -77.25], [82.25, -77.35], [82.5, -77.25], [82.75, -77.35], [83.0, -77.25], [83.25, -77.35], [83.5, -77.25], [83.75, -77.35], [84.0, -77.25], [84.25, -77.35], [84.5, -77.25], [84.75, -77.35], [85.0, -77.25], [85.25, -77.35], [85.5, -77.25], [85.75, -77.35], [86.0, -77.25], [86.25, -77.35], [86.5, -77.25], [86.75, -77.35], [87.0, -77.25], [87.25, -77.35], [87.5, -77.25], [87.75, -77.35], [88.0, -77.25], [88.25, -77.35], [88.5, -77.25], [88.75, -77.35], [89.0, -77.25], [89.25, -77.35], [89.5, -77.25], [89.75, -77.35], [90.0, -77.25], [90.25, -77.35], [90.5, -77.25], [91.03, -77.47], [91.18, -77.82], [91.25, -77.85], [91.5, -77.75], [91.75, -77.85], [92.0, -77.75], [92.25, -77.85], [92.5, -77.75], [92.75, -77.85], [93.0, -77.75], [93.25, -77.85], [93.5, -77.75], [93.75, -77.85], [94.0, -77.75], [94.25, -77.85], [94.5, -77.75], [94.75, -77.85], [95.0, -77.75], [95.25, -77.85], [95.5, -77.75], [95.75, -77.85], [96.0, -77.75], [96.25, -77.85], [96.5, -77.75], [96.75, -77.85], [96.82, -77.82], [96.97, -77.47], [97.5, -77.25], [97.75, -77.35], [98.0, -77.25], [98.25, -77.35], [98.5, -77.25], [98.75, -77.35], [99.0, -77.25], [99.25, -77.35], [99.5, -77.25], [99.75, -77.35], [100.0, -77.25], [100.25, -77.35], [100.5, -77.25], [101.03, -77.47], [101.18, -77.82], [101.25, -77.85], [101.5, -77.75], [101.75, -77.85], [102.0, -77.75], [102.53, -77.97], [102.75, -78.5], [102.53, -79.03], [102.18, -79.18], [102.03, -79.53], [101.5, -79.75], [101.25, -79.65], [101.0, -79.75], [100.75, -79.65], [100.5, -79.75], [100.25, -79.65], [100.0, -79.75], [99.75, -79.65], [99.68, -79.68], [99.53, -80.03], [99.0, -80.25], [98.75, -80.15], [98.5, -80.25], [98.25, -80.15], [98.0, -80.25], [97.75, -80.15], [97.5, -80.25], [97.25, -80.15], [97.0, -80.25], [96.75, -80.15], [96.5, -80.25], [96.25, -80.15], [96.0, -80.25], [95.75, -80.15], [95.5, -80.25], [95.25, -80.15], [95.0, -80.25], [94.75, -80.15], [94.5, -80.25], [94.25, -80.15], [94.0, -80.25], [93.75, -80.15], [93.5, -80.25], [93.25, -80.15], [93.0, -80.25], [92.75, -80.15], [92.5, -80.25], [92.25, -80.15], [92.0, -80.25], [91.47, -80.03], [91.32, -79.68], [91.25, -79.65], [91.0, -79.75], [90.75, -79.65], [90.5, -79.75], [90.25, -79.65], [90.0, -79.75], [89.75, -79.65], [89.5, -79.75], [89.25, -79.65], [89.0, -79.75], [88.75, -79.65], [88.5, -79.75], [88.25, -79.65], [88.0, -79.75], [87.75, -79.65], [87.5, -79.75], [86.97, -79.53], [86.82, -79.18], [86.75, -79.15], [86.5, -79.25], [86.25, -79.15], [86.0, -79.25], [85.75, -79.15], [85.5, -79.25], [85.25, -79.15], [85.0, -79.25], [84.75, -79.15], [84.5, -79.25], [84.25, -79.15], [84.0, -79.25], [83.75, -79.15], [83.5, -79.25], [83.25, -79.15], [83.0, -79.25], [82.47, -79.03], [82.32, -78.68], [82.25, -78.65], [82.0, -78.75], [81.75, -78.65], [81.5, -78.75], [81.25, -78.65], [81.0, -78.75], [80.75, -78.65], [80.5, -78.75], [80.25, -78.65], [80.0, -78.75], [79.75, -78.65], [79.5, -78.75], [78.97, -78.53]]]]}, "2020-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.97, -78.53], [78.75, -78.0], [78.97, -77.47], [79.5, -77.25], [79.75, -77.35], [80.0, -77.25], [80.25, -77.35], [80.5, -77.25], [80.75, -77.35], [81.0, -77.25], [81.25, -77.35], [81.5, -77.25], [81.75, -77.35], [82.0, -77.25], [82.25, -77.35], [82.5, -77.25], [82.75, -77.35], [83.0, -77.25], [83.25, -77.35], [83.5, -77.25], [83.75, -77.35], [84.0, -77.25], [84.25, -77.35], [84.5, -77.25], [84.75, -77.35], [85.0, -77.25], [85.25, -77.35], [85.5, -77.25], [85.75, -77.35], [86.0, -77.25], [86.25, -77.35], [86.5, -77.25], [86.75, -77.35], [87.0, -77.25], [87.25, -77.35], [87.5, -77.25], [87.75, -77.35], [88.0, -77.25], [88.25, -77.35], [88.5, -77.25], [88.75, -77.35], [89.0, -77.25], [89.25, -77.35], [89.5, -77.25], [89.75, -77.35], [90.0, -77.25], [90.25, -77.35], [90.5, -77.25], [91.03, -77.47], [91.18, -77.82], [91.25, -77.85], [91.5, -77.75], [91.75, -77.85], [92.0, -77.75], [92.25, -77.85], [92.5, -77.75], [92.75, -77.85], [93.0, -77.75], [93.25, -77.85], [93.5, -77.75], [93.75, -77.85], [94.0, -77.75], [94.25, -77.85], [94.5, -77.75], [94.75, -77.85], [95.0, -77.75], [95.25, -77.85], [95.5, -77.75], [95.75, -77.85], [96.0, -77.75], [96.25, -77.85], [96.5, -77.75], [96.75, -77.85], [96.82, -77.82], [96.97, -77.47], [97.5, -77.25], [97.75, -77.35], [98.0, -77.25], [98.25, -77.35], [98.5, -77.25], [98.75, -77.35], [99.0, -77.25], [99.25, -77.35], [99.5, -77.25], [99.75, -77.35], [100.0, -77.25], [100.25, -77.35], [100.5, -77.25], [101.03, -77.47], [101.18, -77.82], [101.25, -77.85], [101.5, -77.75], [101.75, -77.85], [102.0, -77.75], [102.53, -77.97], [102.75, -78.5], [102.53, -79.03], [102.18, -79.18], [102.03, -79.53], [101.5, -79.75], [101.25, -79.65], [101.0, -79.75], [100.75, -79.65], [100.5, -79.75], [100.25, -79.65], [100.0, -79.75], [99.75, -79.65], [99.68, -79.68], [99.53, -80.03], [99.0, -80.25], [98.75, -80.15], [98.5, -80.25], [98.25, -80.15], [98.0, -80.25], [97.75, -80.15], [97.5, -80.25], [97.25, -80.15], [97.0, -80.25], [96.75, -80.15], [96.5, -80.25], [96.25, -80.15], [96.0, -80.25], [95.75, -80.15], [95.5, -80.25], [95.25, -80.15], [95.0, -80.25], [94.75, -80.15], [94.5, -80.25], [94.25, -80.15], [94.0, -80.25], [93.75, -80.15], [93.5, -80.25], [93.25, -80.15], [93.0, -80.25], [92.75, -80.15], [92.5, -80.25], [92.25, -80.15], [92.0, -80.25], [91.47, -80.03], [91.32, -79.68], [91.25, -79.65], [91.0, -79.75], [90.75, -79.65], [90.5, -79.75], [90.25, -79.65], [90.0, -79.75], [89.75, -79.65], [89.5, -79.75], [89.25, -79.65], [89.0, -79.75], [88.75, -79.65], [88.5, -79.75], [88.25, -79.65], [88.0, -79.75], [87.75, -79.65], [87.5, -79.75], [86.97, -79.53], [86.82, -79.18], [86.75, -79.15], [86.5, -79.25], [86.25, -79.15], [86.0, -79.25], [85.75, -79.15], [85.5, -79.25], [85.25, -79.15], [85.0, -79.25], [84.75, -79.15], [84.5, -79.25], [84.25, -79.15], [84.0, -79.25], [83.75, -79.15], [83.5, -79.25], [83.25, -79.15], [83.0, -79.25], [82.47, -79.03], [82.32, -78.68], [82.25, -78.65], [82.0, -78.75], [81.75, -78.65], [81.5, -78.75], [81.25, -78.65], [81.0, -78.75], [80.75, -78.65], [80.5, -78.75], [80.25, -78.65], [80.0, -78.75], [79.75, -78.65], [79.5, -78.75], [78.97, -78.53]]]]}, "2020-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.97, -79.53], [86.75, -79.0], [86.97, -78.47], [87.5, -78.25], [87.75, -78.35], [88.0, -78.25], [88.25, -78.35], [88.5, -78.25], [88.75, -78.35], [89.0, -78.25], [89.25, -78.35], [89.5, -78.25], [89.75, -78.35], [90.0, -78.25], [90.25, -78.35], [90.32, -78.32], [90.47, -77.97], [91.0, -77.75], [91.25, -77.85], [91.5, -77.75], [91.75, -77.85], [92.0, -77.75], [92.25, -77.85], [92.5, -77.75], [92.75, -77.85], [93.0, -77.75], [93.25, -77.85], [93.5, -77.75], [93.75, -77.85], [94.0, -77.75], [94.25, -77.85], [94.5, -77.75], [94.75, -77.85], [95.0, -77.75], [95.25, -77.85], [95.5, -77.75], [95.75, -77.85], [96.0, -77.75], [96.25, -77.85], [96.5, -77.75], [96.75, -77.85], [96.82, -77.82], [96.97, -77.47], [97.5, -77.25], [97.75, -77.35], [98.0, -77.25], [98.25, -77.35], [98.5, -77.25], [98.75, -77.35], [99.0, -77.25], [99.25, -77.35], [99.5, -77.25], [99.75, -77.35], [100.0, -77.25], [100.25, -77.35], [100.5, -77.25], [101.03, -77.47], [101.18, -77.82], [101.25, -77.85], [101.5, -77.75], [101.75, -77.85], [102.0, -77.75], [102.53, -77.97], [102.75, -78.5], [102.53, -79.03], [102.18, -79.18], [102.03, -79.53], [101.5, -79.75], [101.25, -79.65], [101.0, -79.75], [100.75, -79.65], [100.5, -79.75], [100.25, -79.65], [100.0, -79.75], [99.75, -79.65], [99.68, -79.68], [99.53, -80.03], [99.0, -80.25], [98.75, -80.15], [98.5, -80.25], [98.25, -80.15], [98.0, -80.25], [97.75, -80.15], [97.5, -80.25], [97.25, -80.15], [97.0, -80.25], [96.75, -80.15], [96.5, -80.25], [96.25, -80.15], [96.0, -80.25], [95.75, -80.15], [95.5, -80.25], [95.25, -80.15], [95.0, -80.25], [94.75, -80.15], [94.5, -80.25], [94.25, -80.15], [94.0, -80.25], [93.75, -80.15], [93.5, -80.25], [93.25, -80.15], [93.0, -80.25], [92.75, -80.15], [92.5, -80.25], [92.25, -80.15], [92.0, -80.25], [91.47, -80.03], [91.32, -79.68], [91.25, -79.65], [91.0, -79.75], [90.75, -79.65], [90.5, -79.75], [90.25, -79.65], [90.0, -79.75], [89.75, -79.65], [89.5, -79.75], [89.25, -79.65], [89.0, -79.75], [88.75, -79.65], [88.5, -79.75], [88.25, -79.65], [88.0, -79.75], [87.75, -79.65], [87.5, -79.75], [86.97, -79.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -12.014185024735923}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -9.747365129048994}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-66.53637866792025, -68.65550348319806, -68.39993721458552, -69.59793618627322]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-70.14840882544613, -71.30157773653718, -71.34241326829758, -73.51895539419459]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-9.879578852276447, -10.088131698768391, -9.697987984372663, -9.22273406664458]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-11.009602401585738, -11.915027662738595, -11.65073485311359, -12.014185024735923]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4790301153021281, -1.602115754296516, -1.5583403175569464, -1.5311204158003824]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.656855867240026, -1.7851907223178165, -1.9337557682088287, -1.947593470266687]}}