{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:36.619800", "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-Sep-08_to_2010-Sep-11_290.0_10.5"}, "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": 2010090000414}, "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": "September 08 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 11 2010"}, "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": 60697.81076885789}, "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": ["Colombia", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "N.W.South-America"]}, "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": ["Caribbean Sea"]}, "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": 10.5}, "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": 290.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "290.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 286.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.68, 12.18], [-72.53, 12.53], [-72.0, 12.75], [-71.75, 12.65], [-71.5, 12.75], [-70.97, 12.53], [-70.75, 12.0], [-70.87, 11.7], [-70.75, 11.65], [-70.5, 11.75], [-70.25, 11.65], [-70.0, 11.75], [-69.75, 11.65], [-69.5, 11.75], [-68.97, 11.53], [-68.75, 11.0], [-68.85, 10.75], [-68.75, 10.5], [-68.97, 9.97], [-69.32, 9.82], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.0, 9.96], [-71.32, 9.82], [-71.47, 9.47], [-72.0, 9.25], [-72.25, 9.35], [-72.5, 9.25], [-73.03, 9.47], [-73.25, 10.0], [-73.12, 10.3], [-73.53, 10.47], [-73.75, 11.0], [-73.53, 11.53], [-73.18, 11.68], [-73.03, 12.03], [-72.68, 12.18]]]]}, "2010-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.68, 12.18], [-72.53, 12.53], [-72.0, 12.75], [-71.75, 12.65], [-71.5, 12.75], [-70.97, 12.53], [-70.75, 12.0], [-70.87, 11.7], [-70.75, 11.65], [-70.68, 11.68], [-70.53, 12.03], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.75, 11.5], [-68.85, 11.25], [-68.75, 11.0], [-68.85, 10.75], [-68.75, 10.5], [-68.97, 9.97], [-69.32, 9.82], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.0, 9.96], [-71.32, 9.82], [-71.47, 9.47], [-72.0, 9.25], [-72.25, 9.35], [-72.5, 9.25], [-73.03, 9.47], [-73.25, 10.0], [-73.12, 10.3], [-73.53, 10.47], [-73.75, 11.0], [-73.53, 11.53], [-73.18, 11.68], [-73.03, 12.03], [-72.68, 12.18]]]]}, "2010-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.68, 12.18], [-72.53, 12.53], [-72.0, 12.75], [-71.75, 12.65], [-71.5, 12.75], [-70.97, 12.53], [-70.75, 12.0], [-70.87, 11.7], [-70.75, 11.65], [-70.68, 11.68], [-70.53, 12.03], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.75, 11.5], [-68.85, 11.25], [-68.75, 11.0], [-68.85, 10.75], [-68.75, 10.5], [-68.97, 9.97], [-69.32, 9.82], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.0, 9.96], [-71.32, 9.82], [-71.47, 9.47], [-72.0, 9.25], [-72.25, 9.35], [-72.5, 9.25], [-73.03, 9.47], [-73.25, 10.0], [-73.12, 10.3], [-73.53, 10.47], [-73.75, 11.0], [-73.53, 11.53], [-73.18, 11.68], [-73.03, 12.03], [-72.68, 12.18]]]]}, "2010-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.75, 11.0], [-70.65, 11.25], [-70.75, 11.5], [-70.53, 12.03], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.75, 11.5], [-68.85, 11.25], [-68.75, 11.0], [-68.97, 10.47], [-69.32, 10.32], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.75, 10.0], [-70.65, 10.25], [-70.75, 10.5], [-70.65, 10.75], [-70.75, 11.0]]], [[[-71.75, 12.65], [-71.5, 12.75], [-70.97, 12.53], [-70.75, 12.0], [-70.97, 11.47], [-71.5, 11.25], [-71.75, 11.35], [-71.82, 11.32], [-71.97, 10.97], [-72.5, 10.75], [-73.03, 10.97], [-73.25, 11.5], [-73.03, 12.03], [-72.68, 12.18], [-72.53, 12.53], [-72.0, 12.75], [-71.75, 12.65]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.189339006629325}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.096984375077641}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.828584876019875, 25.881758234824076, 25.94949462148395, 26.369189876904045]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.612988889000803, 23.97716301082761, 23.73865848866251, 24.72141680531564]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.11264709968205, -2.1896587794583184, -2.0951219286395086, -1.8638545748853896]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.160666594407928, -3.161073869639779, -3.189339006629325, -2.89584688308031]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.637065459043836, -1.7585681059262774, -1.6485232412467732, -1.4123400622706297]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.283148171291688, -2.354015200300519, -2.1772308356501644, -1.6249298162823165]}}