{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:47.577193", "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-Oct-02_to_2010-Oct-04_304.0_-21.5"}, "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": 2010100000169}, "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": "October 02 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 04 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 176172.51431198587}, "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", "Paraguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "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": -21.5}, "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": 304.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "304.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 300.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 307.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -18.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.75, -19.0], [-59.65, -18.75], [-59.75, -18.5], [-59.53, -17.97], [-59.0, -17.75], [-58.47, -17.97], [-58.32, -18.32], [-58.0, -18.46], [-57.5, -18.25], [-57.25, -18.35], [-57.0, -18.25], [-56.47, -18.47], [-56.32, -18.82], [-56.25, -18.85], [-56.0, -18.75], [-55.75, -18.85], [-55.5, -18.75], [-54.97, -18.97], [-54.75, -19.5], [-54.96, -20.0], [-54.82, -20.32], [-54.47, -20.47], [-54.32, -20.82], [-54.25, -20.85], [-54.0, -20.75], [-53.75, -20.85], [-53.68, -20.82], [-53.53, -20.47], [-53.18, -20.32], [-53.03, -19.97], [-52.5, -19.75], [-51.97, -19.97], [-51.75, -20.5], [-51.85, -20.75], [-51.75, -21.0], [-51.85, -21.25], [-51.75, -21.5], [-51.85, -21.75], [-51.75, -22.0], [-51.97, -22.53], [-52.32, -22.68], [-52.47, -23.03], [-52.82, -23.18], [-52.97, -23.53], [-53.5, -23.75], [-54.03, -23.53], [-54.18, -23.18], [-54.25, -23.15], [-54.5, -23.25], [-54.75, -23.15], [-55.0, -23.25], [-55.53, -23.03], [-55.68, -22.68], [-55.75, -22.65], [-56.0, -22.75], [-56.25, -22.65], [-56.5, -22.75], [-57.03, -22.53], [-57.18, -22.18], [-57.25, -22.15], [-57.5, -22.25], [-58.03, -22.03], [-58.25, -21.5], [-58.15, -21.25], [-58.18, -21.18], [-58.53, -21.03], [-58.68, -20.68], [-58.75, -20.65], [-59.0, -20.75], [-59.25, -20.65], [-59.5, -20.75], [-60.03, -20.53], [-60.25, -20.0], [-60.03, -19.47], [-59.68, -19.32], [-59.65, -19.25], [-59.75, -19.0]]]]}, "2010-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.75, -19.0], [-59.65, -18.75], [-59.75, -18.5], [-59.53, -17.97], [-59.0, -17.75], [-58.47, -17.97], [-58.32, -18.32], [-58.0, -18.46], [-57.5, -18.25], [-57.25, -18.35], [-57.0, -18.25], [-56.47, -18.47], [-56.32, -18.82], [-56.25, -18.85], [-56.0, -18.75], [-55.75, -18.85], [-55.5, -18.75], [-54.97, -18.97], [-54.75, -19.5], [-54.96, -20.0], [-54.82, -20.32], [-54.47, -20.47], [-54.32, -20.82], [-54.25, -20.85], [-54.0, -20.75], [-53.75, -20.85], [-53.68, -20.82], [-53.53, -20.47], [-53.18, -20.32], [-53.03, -19.97], [-52.5, -19.75], [-51.97, -19.97], [-51.75, -20.5], [-51.85, -20.75], [-51.75, -21.0], [-51.85, -21.25], [-51.75, -21.5], [-51.85, -21.75], [-51.75, -22.0], [-51.97, -22.53], [-52.32, -22.68], [-52.47, -23.03], [-52.82, -23.18], [-52.97, -23.53], [-53.5, -23.75], [-54.03, -23.53], [-54.18, -23.18], [-54.25, -23.15], [-54.5, -23.25], [-54.75, -23.15], [-55.0, -23.25], [-55.53, -23.03], [-55.68, -22.68], [-55.75, -22.65], [-56.0, -22.75], [-56.25, -22.65], [-56.5, -22.75], [-57.03, -22.53], [-57.18, -22.18], [-57.25, -22.15], [-57.5, -22.25], [-58.03, -22.03], [-58.25, -21.5], [-58.15, -21.25], [-58.18, -21.18], [-58.53, -21.03], [-58.68, -20.68], [-58.75, -20.65], [-59.0, -20.75], [-59.25, -20.65], [-59.5, -20.75], [-60.03, -20.53], [-60.25, -20.0], [-60.03, -19.47], [-59.68, -19.32], [-59.65, -19.25], [-59.75, -19.0]]]]}, "2010-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.75, -19.0], [-59.65, -18.75], [-59.75, -18.5], [-59.53, -17.97], [-59.0, -17.75], [-58.47, -17.97], [-58.32, -18.32], [-58.0, -18.46], [-57.5, -18.25], [-57.25, -18.35], [-57.0, -18.25], [-56.47, -18.47], [-56.32, -18.82], [-56.25, -18.85], [-56.0, -18.75], [-55.75, -18.85], [-55.5, -18.75], [-54.97, -18.97], [-54.75, -19.5], [-54.96, -20.0], [-54.82, -20.32], [-54.47, -20.47], [-54.32, -20.82], [-54.25, -20.85], [-54.0, -20.75], [-53.75, -20.85], [-53.68, -20.82], [-53.53, -20.47], [-53.18, -20.32], [-53.03, -19.97], [-52.5, -19.75], [-51.97, -19.97], [-51.75, -20.5], [-51.85, -20.75], [-51.75, -21.0], [-51.85, -21.25], [-51.75, -21.5], [-51.85, -21.75], [-51.75, -22.0], [-51.97, -22.53], [-52.32, -22.68], [-52.47, -23.03], [-52.82, -23.18], [-52.97, -23.53], [-53.5, -23.75], [-54.03, -23.53], [-54.18, -23.18], [-54.25, -23.15], [-54.5, -23.25], [-54.75, -23.15], [-55.0, -23.25], [-55.53, -23.03], [-55.68, -22.68], [-55.75, -22.65], [-56.0, -22.75], [-56.25, -22.65], [-56.5, -22.75], [-57.03, -22.53], [-57.18, -22.18], [-57.25, -22.15], [-57.5, -22.25], [-58.03, -22.03], [-58.25, -21.5], [-58.15, -21.25], [-58.18, -21.18], [-58.53, -21.03], [-58.68, -20.68], [-58.75, -20.65], [-59.0, -20.75], [-59.25, -20.65], [-59.5, -20.75], [-60.03, -20.53], [-60.25, -20.0], [-60.03, -19.47], [-59.68, -19.32], [-59.65, -19.25], [-59.75, -19.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.075461426786717}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.0470620668962605}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.6460926422522, 18.090729515298676, 20.572296403060022]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.799733017387155, 15.215240255174308, 17.193995591924875]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.1458182831825745, -7.742337739564992, -5.25303017794123]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.283055174920946, -9.075461426786717, -7.407619343491604]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5328338720750563, -2.3742641990248874, -1.6015742655070797]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.872304439484852, -2.780265251764933, -2.069075078663891]}}