{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:23.232780", "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": "2010-Dec-30_to_2011-Jan-03_299.5_-11.5"}, "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": 2010120001392}, "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": "December 30 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 03 2011"}, "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": "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": 169526.94309183184}, "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": ["Bolivia", "Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": -11.5}, "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": 299.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 303.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.2, -11.38], [-61.03, -10.97], [-60.68, -10.82], [-60.53, 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[-63.03, -10.97]]]]}, "2011-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.0, -10.25], [-61.75, -10.35], [-61.5, -10.25], [-61.25, -10.35], [-61.0, -10.25], [-60.75, -10.35], [-60.68, -10.32], [-60.53, -9.97], [-60.0, -9.75], [-59.5, -9.96], [-59.0, -9.75], [-58.75, -9.85], [-58.5, -9.75], [-57.97, -9.97], [-57.82, -10.32], [-57.75, -10.35], [-57.5, -10.25], [-56.97, -10.47], [-56.75, -11.0], [-56.85, -11.25], [-56.75, -11.5], [-56.97, -12.03], [-57.5, -12.25], [-57.8, -12.12], [-57.97, -12.53], [-58.5, -12.75], [-59.03, -12.53], [-59.18, -12.18], [-59.25, -12.15], [-59.37, -12.2], [-59.25, -12.5], [-59.35, -12.75], [-59.25, -13.0], [-59.35, -13.25], [-59.25, -13.5], [-59.47, -14.03], [-60.0, -14.25], [-60.25, -14.15], [-60.32, -14.18], [-60.47, -14.53], [-61.0, -14.75], [-61.53, -14.53], [-61.75, -14.0], [-61.65, -13.75], [-61.75, -13.5], [-61.53, -12.97], [-61.18, -12.82], [-61.15, -12.75], [-61.18, -12.68], [-61.25, -12.65], [-61.5, -12.75], [-62.03, -12.53], [-62.18, -12.18], [-62.25, -12.15], [-62.5, -12.25], [-63.03, -12.03], [-63.25, -11.5], [-63.03, -10.97], [-62.68, -10.82], [-62.53, -10.47], [-62.0, -10.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.2148136212721283}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.4906868290101447}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.383627158050103, 23.144957521341723, 23.358874972956357, 23.332741631576994, 23.463614521511715]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.963159868723096, 22.399324626770408, 22.151299251230228, 22.299834909497633, 22.50819270930998]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2615122901244717, -1.7100043993650647, -1.4559689284261066, -1.4788043038369412, -1.252849836436953]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3439484158921573, -1.9381622967087537, -2.2148136212721283, -2.1232027465121064, -1.4532342025104867]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5339583371007328, -2.057699819667631, -1.79754571465014, -1.8189700688862178, -1.5112512564782312]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7171381864750686, -2.6194312343630113, -2.7603229483087666, -2.7288050425752632, -1.9344718806918495]}}