{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:26.675540", "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": "2012-Sep-25_to_2012-Sep-27_298.0_-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": 2012090000911}, "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 25 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 27 2012"}, "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": 139729.86068902753}, "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.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": -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": 298.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 303.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -8.5], [-64.03, -7.97], [-63.5, -7.75], [-63.25, -7.85], [-63.18, -7.82], [-63.15, -7.75], [-63.25, -7.5], [-63.03, -6.97], [-62.5, -6.75], [-61.97, -6.97], [-61.82, -7.32], [-61.47, -7.47], [-61.25, -8.0], [-61.35, -8.25], [-61.32, -8.32], [-60.97, -8.47], [-60.75, -9.0], [-60.85, -9.25], [-60.82, -9.32], [-60.47, -9.47], [-60.32, -9.82], [-59.97, -9.97], [-59.82, -10.32], [-59.75, -10.35], [-59.5, -10.25], [-59.25, -10.35], [-59.0, -10.25], [-58.75, -10.35], [-58.5, -10.25], [-57.97, -10.47], [-57.82, -10.82], [-57.47, -10.97], [-57.32, -11.32], [-57.25, -11.35], [-57.0, -11.25], [-56.47, -11.47], [-56.32, -11.82], [-55.97, -11.97], [-55.75, -12.5], [-55.97, -13.03], [-56.5, -13.25], [-56.75, -13.15], [-57.0, -13.25], [-57.25, -13.15], [-57.5, -13.25], [-58.03, -13.03], [-58.18, -12.68], [-58.25, -12.65], [-58.5, -12.75], [-59.0, -12.54], [-59.37, -12.7], [-59.25, -13.0], [-59.47, -13.53], [-60.0, -13.75], [-60.53, -13.53], [-60.68, -13.18], [-61.03, -13.03], [-61.25, -12.5], [-61.15, -12.25], [-61.25, -12.0], [-61.15, -11.75], [-61.18, -11.68], [-61.53, -11.53], [-61.68, -11.18], [-61.75, -11.15], [-62.0, -11.25], [-62.25, -11.15], [-62.5, -11.25], [-63.03, -11.03], [-63.25, -10.5], [-63.04, -10.0], [-63.18, -9.68], [-63.53, -9.53], [-63.68, -9.18], [-64.03, -9.03], [-64.25, -8.5]]]]}, "2012-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -8.5], [-64.03, -7.97], [-63.5, -7.75], [-63.25, -7.85], [-63.18, -7.82], [-63.15, -7.75], [-63.25, -7.5], [-63.03, -6.97], [-62.5, -6.75], [-61.97, -6.97], [-61.82, -7.32], [-61.47, -7.47], [-61.25, -8.0], [-61.35, -8.25], [-61.32, -8.32], [-60.97, -8.47], [-60.75, -9.0], [-60.85, -9.25], [-60.82, -9.32], [-60.47, -9.47], [-60.32, -9.82], [-59.97, -9.97], [-59.82, -10.32], [-59.75, -10.35], [-59.5, -10.25], [-59.25, -10.35], [-59.0, -10.25], [-58.75, -10.35], [-58.5, -10.25], [-57.97, -10.47], [-57.82, -10.82], [-57.47, -10.97], [-57.32, -11.32], [-57.25, -11.35], [-57.0, -11.25], [-56.47, -11.47], [-56.32, -11.82], [-55.97, -11.97], [-55.75, -12.5], [-55.97, -13.03], [-56.5, -13.25], [-56.75, -13.15], [-57.0, -13.25], [-57.25, -13.15], [-57.5, -13.25], [-58.03, -13.03], [-58.18, -12.68], [-58.25, -12.65], [-58.5, -12.75], [-59.0, -12.54], [-59.37, -12.7], [-59.25, -13.0], [-59.47, -13.53], [-60.0, -13.75], [-60.53, -13.53], [-60.68, -13.18], [-61.03, -13.03], [-61.25, -12.5], [-61.15, -12.25], [-61.25, -12.0], [-61.15, -11.75], [-61.18, -11.68], [-61.53, -11.53], [-61.68, -11.18], [-61.75, -11.15], [-62.0, -11.25], [-62.25, -11.15], [-62.5, -11.25], [-63.03, -11.03], [-63.25, -10.5], [-63.04, -10.0], [-63.18, -9.68], [-63.53, -9.53], [-63.68, -9.18], [-64.03, -9.03], [-64.25, -8.5]]]]}, "2012-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -8.5], [-64.03, -7.97], [-63.5, -7.75], [-63.25, -7.85], [-63.18, -7.82], [-63.15, -7.75], [-63.25, -7.5], [-63.03, -6.97], [-62.5, -6.75], [-61.97, -6.97], [-61.82, -7.32], [-61.47, -7.47], [-61.25, -8.0], [-61.35, -8.25], [-61.32, -8.32], [-60.97, -8.47], [-60.75, -9.0], [-60.85, -9.25], [-60.82, -9.32], [-60.47, -9.47], [-60.32, -9.82], [-59.97, -9.97], [-59.82, -10.32], [-59.75, -10.35], [-59.5, -10.25], [-59.25, -10.35], [-59.0, -10.25], [-58.75, -10.35], [-58.5, -10.25], [-57.97, -10.47], [-57.82, -10.82], [-57.47, -10.97], [-57.32, -11.32], [-57.25, -11.35], [-57.0, -11.25], [-56.47, -11.47], [-56.32, -11.82], [-55.97, -11.97], [-55.75, -12.5], [-55.97, -13.03], [-56.5, -13.25], [-56.75, -13.15], [-57.0, -13.25], [-57.25, -13.15], [-57.5, -13.25], [-58.03, -13.03], [-58.18, -12.68], [-58.25, -12.65], [-58.5, -12.75], [-59.0, -12.54], [-59.37, -12.7], [-59.25, -13.0], [-59.47, -13.53], [-60.0, -13.75], [-60.53, -13.53], [-60.68, -13.18], [-61.03, -13.03], [-61.25, -12.5], [-61.15, -12.25], [-61.25, -12.0], [-61.15, -11.75], [-61.18, -11.68], [-61.53, -11.53], [-61.68, -11.18], [-61.75, -11.15], [-62.0, -11.25], [-62.25, -11.15], [-62.5, -11.25], [-63.03, -11.03], [-63.25, -10.5], [-63.04, -10.0], [-63.18, -9.68], [-63.53, -9.53], [-63.68, -9.18], [-64.03, -9.03], [-64.25, -8.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.626556974011237}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.4550975668844095}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.361543692146768, 23.783587098999647, 24.030855452376272]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.780267525496413, 21.427051545248958, 21.089011074181087]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.1964508495380715, -2.712464363563609, -2.456377487551548]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.7687012980467784, -3.551782319098777, -3.626556974011237]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.501032908259985, -1.8742288099632973, -1.7541609611364384]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7610369920272408, -2.672439210186014, -2.4143063032175767]}}