{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:54.494000", "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-31_to_2010-Nov-02_306.5_-19.0"}, "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": 2010100001242}, "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 31 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 02 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": 52450.022426464304}, "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": ["Brazil"]}, "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": -19.0}, "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": 306.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "306.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 304.25}, "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": -21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.03, -21.03], [-56.25, -20.5], [-56.03, -19.97], [-55.5, -19.75], [-55.25, -19.85], [-55.0, -19.75], [-54.75, -19.85], [-54.68, -19.82], [-54.53, -19.47], [-54.18, -19.32], [-54.15, -19.25], [-54.25, -19.0], [-54.15, -18.75], [-54.18, -18.68], [-54.53, -18.53], [-54.75, -18.0], [-54.53, -17.47], [-54.0, -17.25], [-53.75, -17.35], [-53.5, -17.25], [-52.97, -17.47], [-52.82, -17.82], [-52.75, -17.85], [-52.5, -17.75], [-51.97, -17.97], [-51.75, -18.5], [-51.85, -18.75], [-51.75, -19.0], [-51.85, -19.25], [-51.75, -19.5], [-51.97, -20.03], [-52.5, -20.25], [-52.75, -20.15], [-52.87, -20.2], [-52.75, -20.5], [-52.97, -21.03], [-53.32, -21.18], [-53.47, -21.53], [-54.0, -21.75], [-54.53, -21.53], [-54.68, -21.18], [-54.75, -21.15], [-55.0, -21.25], [-55.25, -21.15], [-55.5, -21.25], [-56.03, -21.03]]]]}, "2010-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.03, -21.03], [-56.25, -20.5], [-56.03, -19.97], [-55.5, -19.75], [-55.25, -19.85], [-55.0, -19.75], [-54.75, -19.85], [-54.68, -19.82], [-54.53, -19.47], [-54.18, -19.32], [-54.15, -19.25], [-54.25, -19.0], [-54.15, -18.75], [-54.18, -18.68], [-54.53, -18.53], [-54.75, -18.0], [-54.53, -17.47], [-54.0, -17.25], [-53.75, -17.35], [-53.5, -17.25], [-52.97, -17.47], [-52.82, -17.82], [-52.75, -17.85], [-52.5, -17.75], [-51.97, -17.97], [-51.75, -18.5], [-51.85, -18.75], [-51.75, -19.0], [-51.85, -19.25], [-51.75, -19.5], [-51.97, -20.03], [-52.5, -20.25], [-52.75, -20.15], [-52.87, -20.2], [-52.75, -20.5], [-52.97, -21.03], [-53.32, -21.18], [-53.47, -21.53], [-54.0, -21.75], [-54.53, -21.53], [-54.68, -21.18], [-54.75, -21.15], [-55.0, -21.25], [-55.25, -21.15], [-55.5, -21.25], [-56.03, -21.03]]]]}, "2010-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.03, -21.03], [-56.25, -20.5], [-56.03, -19.97], [-55.5, -19.75], [-55.25, -19.85], [-55.0, -19.75], [-54.75, -19.85], [-54.68, -19.82], [-54.53, -19.47], [-54.18, -19.32], [-54.15, -19.25], [-54.25, -19.0], [-54.15, -18.75], [-54.18, -18.68], [-54.53, -18.53], [-54.75, -18.0], [-54.53, -17.47], [-54.0, -17.25], [-53.75, -17.35], [-53.5, -17.25], [-52.97, -17.47], [-52.82, -17.82], [-52.75, -17.85], [-52.5, -17.75], [-51.97, -17.97], [-51.75, -18.5], [-51.85, -18.75], [-51.75, -19.0], [-51.85, -19.25], [-51.75, -19.5], [-51.97, -20.03], [-52.5, -20.25], [-52.75, -20.15], [-52.87, -20.2], [-52.75, -20.5], [-52.97, -21.03], [-53.32, -21.18], [-53.47, -21.53], [-54.0, -21.75], [-54.53, -21.53], [-54.68, -21.18], [-54.75, -21.15], [-55.0, -21.25], [-55.25, -21.15], [-55.5, -21.25], [-56.03, -21.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.121611559572955}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.968822532599749}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.139358569778324, 22.062128357274673, 22.250064769795188]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.867233147559375, 20.763980073606604, 21.052193899948577]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.093406222159492, -3.0656572437105942, -2.7474041319291618]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.121611559572955, -3.833173813655378, -3.2229160934008405]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.515589747839576, -1.5346736425279985, -1.4339456472943612]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7574801407033014, -1.867173781465585, -1.711279786552872]}}