{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:28:08.494077", "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": "2021-Nov-10_to_2021-Nov-12_301.0_-10.0"}, "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": 2021110000349}, "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 10 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 12 2021"}, "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": 57847.76200478069}, "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": ["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": -10.0}, "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": 301.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "301.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -9.0], [-62.03, -8.47], [-61.68, -8.32], [-61.53, -7.97], [-61.0, -7.75], [-60.47, -7.97], [-60.32, -8.32], [-59.97, -8.47], [-59.75, -9.0], [-59.85, -9.25], [-59.8, -9.38], [-59.5, -9.25], [-59.25, -9.35], [-59.0, -9.25], [-58.47, -9.47], [-58.25, -10.0], [-58.46, -10.5], [-58.25, -11.0], [-58.47, -11.53], [-59.0, -11.75], [-59.25, -11.65], [-59.5, -11.75], [-59.75, -11.65], [-60.0, -11.75], [-60.53, -11.53], [-60.68, -11.18], [-61.03, -11.03], [-61.18, -10.68], [-61.25, -10.65], [-61.5, -10.75], [-61.75, -10.65], [-62.0, -10.75], [-62.53, -10.53], [-62.75, -10.0], [-62.53, -9.47], [-62.18, -9.32], [-62.15, -9.25], [-62.25, -9.0]]]]}, "2021-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -9.0], [-62.03, -8.47], [-61.68, -8.32], [-61.53, -7.97], [-61.0, -7.75], [-60.47, -7.97], [-60.32, -8.32], [-59.97, -8.47], [-59.75, -9.0], [-59.85, -9.25], [-59.8, -9.38], [-59.5, -9.25], [-59.25, -9.35], [-59.0, -9.25], [-58.47, -9.47], [-58.25, -10.0], [-58.46, -10.5], [-58.25, -11.0], [-58.47, -11.53], [-59.0, -11.75], [-59.25, -11.65], [-59.5, -11.75], [-59.75, -11.65], [-60.0, -11.75], [-60.53, -11.53], [-60.68, -11.18], [-61.03, -11.03], [-61.18, -10.68], [-61.25, -10.65], [-61.5, -10.75], [-61.75, -10.65], [-62.0, -10.75], [-62.53, -10.53], [-62.75, -10.0], [-62.53, -9.47], [-62.18, -9.32], [-62.15, -9.25], [-62.25, -9.0]]]]}, "2021-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -9.0], [-62.03, -8.47], [-61.68, -8.32], [-61.53, -7.97], [-61.0, -7.75], [-60.47, -7.97], [-60.32, -8.32], [-59.97, -8.47], [-59.75, -9.0], [-59.85, -9.25], [-59.8, -9.38], [-59.5, -9.25], [-59.25, -9.35], [-59.0, -9.25], [-58.47, -9.47], [-58.25, -10.0], [-58.46, -10.5], [-58.25, -11.0], [-58.47, -11.53], [-59.0, -11.75], [-59.25, -11.65], [-59.5, -11.75], [-59.75, -11.65], [-60.0, -11.75], [-60.53, -11.53], [-60.68, -11.18], [-61.03, -11.03], [-61.18, -10.68], [-61.25, -10.65], [-61.5, -10.75], [-61.75, -10.65], [-62.0, -10.75], [-62.53, -10.53], [-62.75, -10.0], [-62.53, -9.47], [-62.18, -9.32], [-62.15, -9.25], [-62.25, -9.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.561898206621038}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.608199340979702}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.442574931298793, 23.89810103255502, 24.209520263851118]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.688238136685356, 22.83527929507926, 23.47137652037469]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3807947040077095, -1.8995004058977751, -1.5443029130336214]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9867831139201826, -2.3909496880658594, -2.561898206621038]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4759840842075278, -2.011863285084389, -1.6115325288147873]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1292324528574844, -2.671329336056787, -2.3740574381277555]}}