{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:36.327858", "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": "2016-Nov-19_to_2016-Nov-23_318.5_-22.5"}, "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": 2016110000652}, "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": "November 19 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 23 2016"}, "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": 190170.58952468744}, "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": ["N.E.South-America", "S.Atlantic-Ocean", "S.E.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": ["South Atlantic Ocean"]}, "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": -22.5}, "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": 318.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "318.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 314.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 322.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.53, -23.47], [-45.0, -23.25], [-44.75, -23.35], [-44.68, -23.32], [-44.53, -22.97], [-44.0, -22.75], [-43.75, -22.85], [-43.5, -22.75], [-43.25, -22.85], [-43.0, -22.75], [-42.75, -22.85], [-42.68, -22.82], [-42.53, -22.47], [-42.18, -22.32], [-42.03, -21.97], [-41.68, -21.82], [-41.53, -21.47], [-41.18, -21.32], [-41.03, -20.97], [-40.5, -20.75], [-40.25, -20.85], [-40.18, -20.82], [-40.15, -20.75], [-40.25, -20.5], [-40.03, -19.97], [-39.68, -19.82], [-39.65, -19.75], [-39.75, -19.5], [-39.53, -18.97], [-39.0, -18.75], [-38.47, -18.97], [-38.25, -19.5], [-38.35, -19.75], [-38.25, -20.0], [-38.35, -20.25], [-38.25, -20.5], [-38.47, -21.03], [-38.82, -21.18], [-38.85, -21.25], [-38.75, -21.5], [-38.85, -21.75], [-38.82, -21.82], [-38.47, -21.97], [-38.25, -22.5], [-38.35, -22.75], [-38.32, -22.82], [-37.97, -22.97], [-37.82, -23.32], [-37.47, -23.47], [-37.25, -24.0], [-37.35, -24.25], [-37.25, -24.5], [-37.47, -25.03], [-38.0, -25.25], [-38.25, -25.15], [-38.5, -25.25], [-38.75, -25.15], [-39.0, -25.25], [-39.25, -25.15], [-39.5, -25.25], [-39.75, -25.15], [-40.0, -25.25], [-40.25, -25.15], [-40.5, -25.25], [-41.03, -25.03], [-41.18, -24.68], [-41.25, -24.65], [-41.5, -24.75], [-41.75, -24.65], [-41.82, -24.68], [-41.85, -24.75], [-41.75, -25.0], [-41.97, -25.53], [-42.5, -25.75], [-43.03, -25.53], [-43.18, -25.18], [-43.25, -25.15], [-43.32, -25.18], [-43.47, -25.53], [-44.0, -25.75], [-44.25, -25.65], [-44.5, -25.75], [-45.03, -25.53], [-45.18, -25.18], [-45.53, -25.03], [-45.75, -24.5], [-45.65, -24.25], [-45.75, -24.0], [-45.53, -23.47]]]]}, "2016-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.53, -23.47], [-45.0, -23.25], [-44.75, -23.35], [-44.68, -23.32], [-44.53, -22.97], [-44.0, -22.75], [-43.75, -22.85], [-43.5, -22.75], [-43.25, -22.85], [-43.0, -22.75], [-42.75, -22.85], [-42.68, -22.82], [-42.53, -22.47], [-42.18, -22.32], [-42.03, -21.97], [-41.68, -21.82], [-41.53, -21.47], [-41.18, -21.32], [-41.03, -20.97], [-40.5, -20.75], [-40.25, -20.85], [-40.18, -20.82], [-40.15, -20.75], [-40.25, -20.5], [-40.03, -19.97], [-39.68, -19.82], [-39.65, -19.75], [-39.75, -19.5], [-39.53, -18.97], [-39.0, -18.75], [-38.47, -18.97], [-38.25, -19.5], [-38.35, -19.75], [-38.25, -20.0], [-38.35, -20.25], [-38.25, -20.5], [-38.47, -21.03], [-38.82, -21.18], [-38.85, -21.25], [-38.75, -21.5], [-38.85, -21.75], [-38.82, -21.82], [-38.47, -21.97], [-38.25, -22.5], [-38.35, -22.75], [-38.32, -22.82], [-37.97, -22.97], [-37.82, -23.32], [-37.47, -23.47], [-37.25, -24.0], [-37.35, -24.25], [-37.25, -24.5], [-37.47, -25.03], [-38.0, -25.25], [-38.25, -25.15], [-38.5, -25.25], [-38.75, -25.15], [-39.0, -25.25], [-39.25, -25.15], [-39.5, -25.25], [-39.75, -25.15], [-40.0, -25.25], [-40.25, -25.15], [-40.5, -25.25], [-41.03, -25.03], [-41.18, -24.68], [-41.25, -24.65], [-41.5, -24.75], [-41.75, -24.65], [-41.82, -24.68], [-41.85, -24.75], [-41.75, -25.0], [-41.97, -25.53], [-42.5, -25.75], [-43.03, -25.53], [-43.18, -25.18], [-43.25, -25.15], [-43.32, -25.18], [-43.47, -25.53], [-44.0, -25.75], [-44.25, -25.65], [-44.5, -25.75], [-45.03, -25.53], [-45.18, -25.18], [-45.53, -25.03], [-45.75, -24.5], [-45.65, -24.25], [-45.75, -24.0], [-45.53, -23.47]]]]}, "2016-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.53, -23.47], [-45.0, -23.25], [-44.75, -23.35], [-44.68, -23.32], [-44.53, -22.97], [-44.0, -22.75], [-43.75, -22.85], [-43.5, -22.75], [-43.25, -22.85], [-43.0, -22.75], [-42.75, -22.85], [-42.68, -22.82], [-42.53, -22.47], [-42.18, -22.32], [-42.03, -21.97], [-41.68, -21.82], [-41.53, -21.47], [-41.18, -21.32], [-41.03, -20.97], [-40.5, -20.75], [-40.25, -20.85], [-40.18, -20.82], [-40.15, -20.75], [-40.25, -20.5], [-40.03, -19.97], [-39.68, -19.82], [-39.65, -19.75], [-39.75, -19.5], [-39.53, -18.97], [-39.0, -18.75], [-38.47, -18.97], [-38.25, -19.5], [-38.35, -19.75], [-38.25, -20.0], [-38.35, -20.25], [-38.25, -20.5], [-38.47, -21.03], [-38.82, -21.18], [-38.85, -21.25], [-38.75, -21.5], [-38.85, -21.75], [-38.82, -21.82], [-38.47, -21.97], [-38.25, -22.5], [-38.35, -22.75], [-38.32, -22.82], [-37.97, -22.97], [-37.82, -23.32], [-37.47, -23.47], [-37.25, -24.0], [-37.35, -24.25], [-37.25, -24.5], [-37.47, -25.03], [-38.0, -25.25], [-38.25, -25.15], [-38.5, -25.25], [-38.75, -25.15], [-39.0, -25.25], [-39.25, -25.15], [-39.5, -25.25], [-39.75, -25.15], [-40.0, -25.25], [-40.25, -25.15], [-40.5, -25.25], [-41.03, -25.03], [-41.18, -24.68], [-41.25, -24.65], [-41.5, -24.75], [-41.75, -24.65], [-41.82, -24.68], [-41.85, -24.75], [-41.75, -25.0], [-41.97, -25.53], [-42.5, -25.75], [-43.03, -25.53], [-43.18, -25.18], [-43.25, -25.15], [-43.32, -25.18], [-43.47, -25.53], [-44.0, -25.75], [-44.25, -25.65], [-44.5, -25.75], [-45.03, -25.53], [-45.18, -25.18], [-45.53, -25.03], [-45.75, -24.5], [-45.65, -24.25], [-45.75, -24.0], [-45.53, -23.47]]]]}, "2016-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.5, -21.75], [-40.97, -21.97], [-40.75, -22.5], [-40.97, -23.03], [-41.5, -23.25], [-42.03, -23.03], [-42.25, -22.5], [-42.03, -21.97], [-41.5, -21.75]]]]}, "2016-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.5, -21.75], [-40.97, -21.97], [-40.75, -22.5], [-40.97, -23.03], [-41.5, -23.25], [-42.03, -23.03], [-42.25, -22.5], [-42.03, -21.97], [-41.5, -21.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.4290616160839136}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.009423801947772}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.36930371772621, 21.011969415919395, 21.804835701337197, 21.75250276861817, 21.754035663964203]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.070341738243258, 19.633658176536414, 21.048584451582826, 21.75250276861817, 21.754035663964203]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.019957872170487, -2.392933008082679, -1.6342135969545089, -1.3386010166653364, -1.4184308058182182]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9593100740395926, -3.4290616160839136, -2.053223452405973, -1.3386010166653364, -1.4184308058182182]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.872332592113451, -2.243349506343319, -1.5818042648290698, -1.3615734475845953, -1.5221239362601666]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4364263754683617, -2.8871931187577955, -1.91924106842878, -1.3615734475845953, -1.5221239362601666]}}