{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:49.135335", "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-14_to_2010-Oct-17_297.0_-41.5"}, "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": 2010100000572}, "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 14 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 17 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": 92065.34668558995}, "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": ["Argentina"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "S.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": -41.5}, "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": 297.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 294.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -42.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, -41.5], [-65.53, -40.97], [-65.18, -40.82], [-65.03, -40.47], [-64.5, -40.25], [-64.25, -40.35], [-64.0, -40.25], [-63.75, -40.35], [-63.5, -40.25], [-63.25, -40.35], [-63.12, -40.3], [-63.25, -40.0], [-63.03, -39.47], [-62.68, -39.32], [-62.53, -38.97], [-62.0, -38.75], [-61.47, -38.97], [-61.25, -39.5], [-61.35, -39.75], [-61.25, -40.0], [-61.35, -40.25], [-61.25, -40.5], [-61.35, -40.75], [-61.25, -41.0], [-61.47, -41.53], [-61.82, -41.68], [-61.97, -42.03], [-62.32, -42.18], [-62.47, -42.53], [-63.0, -42.75], [-63.25, -42.65], [-63.5, -42.75], [-63.75, -42.65], [-64.0, -42.75], [-64.25, -42.65], [-64.5, -42.75], [-65.03, -42.53], [-65.18, -42.18], [-65.53, -42.03], [-65.75, -41.5]]]]}, "2010-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, -41.5], [-65.53, -40.97], [-65.18, -40.82], [-65.03, -40.47], [-64.62, -40.3], [-64.75, -40.0], [-64.53, -39.47], [-64.18, -39.32], [-64.15, -39.25], [-64.25, -39.0], [-64.03, -38.47], [-63.68, -38.32], [-63.65, -38.25], [-63.75, -38.0], [-63.53, -37.47], [-63.0, -37.25], [-62.75, -37.35], [-62.5, -37.25], [-62.25, -37.35], [-62.0, -37.25], [-61.75, -37.35], [-61.5, -37.25], [-60.97, -37.47], [-60.75, -38.0], [-60.97, -38.53], [-61.32, -38.68], [-61.46, -39.0], [-61.25, -39.5], [-61.35, -39.75], [-61.25, -40.0], [-61.35, -40.25], [-61.25, -40.5], [-61.35, -40.75], [-61.25, -41.0], [-61.47, -41.53], [-61.82, -41.68], [-61.97, -42.03], [-62.32, -42.18], [-62.47, -42.53], [-63.0, -42.75], [-63.25, -42.65], [-63.5, -42.75], [-63.75, -42.65], [-64.0, -42.75], [-64.25, -42.65], [-64.5, -42.75], [-65.03, -42.53], [-65.18, -42.18], [-65.53, -42.03], [-65.75, -41.5]]]]}, "2010-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, -41.5], [-65.53, -40.97], [-65.18, -40.82], [-65.03, -40.47], [-64.62, -40.3], [-64.75, -40.0], [-64.53, -39.47], [-64.18, -39.32], [-64.15, -39.25], [-64.25, -39.0], [-64.03, -38.47], [-63.68, -38.32], [-63.65, -38.25], [-63.75, -38.0], [-63.53, -37.47], [-63.0, -37.25], [-62.75, -37.35], [-62.5, -37.25], [-62.25, -37.35], [-62.0, -37.25], [-61.75, -37.35], [-61.5, -37.25], [-60.97, -37.47], [-60.75, -38.0], [-60.97, -38.53], [-61.32, -38.68], [-61.46, -39.0], [-61.25, -39.5], [-61.35, -39.75], [-61.25, -40.0], [-61.35, -40.25], [-61.25, -40.5], [-61.35, -40.75], [-61.25, -41.0], [-61.47, -41.53], [-61.82, -41.68], [-61.97, -42.03], [-62.32, -42.18], [-62.47, -42.53], [-63.0, -42.75], [-63.25, -42.65], [-63.5, -42.75], [-63.75, -42.65], [-64.0, -42.75], [-64.25, -42.65], [-64.5, -42.75], [-65.03, -42.53], [-65.18, -42.18], [-65.53, -42.03], [-65.75, -41.5]]]]}, "2010-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, -40.0], [-64.53, -39.47], [-64.18, -39.32], [-64.15, -39.25], [-64.25, -39.0], [-64.03, -38.47], [-63.68, -38.32], [-63.65, -38.25], [-63.75, -38.0], [-63.53, -37.47], [-63.0, -37.25], [-62.75, -37.35], [-62.5, -37.25], [-62.25, -37.35], [-62.0, -37.25], [-61.75, -37.35], [-61.5, -37.25], [-60.97, -37.47], [-60.75, -38.0], [-60.97, -38.53], [-61.32, -38.68], [-61.46, -39.0], [-61.25, -39.5], [-61.35, -39.75], [-61.25, -40.0], [-61.35, -40.25], [-61.25, -40.5], [-61.35, -40.75], [-61.25, -41.0], [-61.47, -41.53], [-61.82, -41.68], [-61.97, -42.03], [-62.32, -42.18], [-62.47, -42.53], [-63.0, -42.75], [-63.53, -42.53], [-63.75, -42.0], [-63.65, -41.75], [-63.75, -41.5], [-63.62, -41.2], [-64.03, -41.03], [-64.18, -40.68], [-64.53, -40.53], [-64.75, -40.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.277145846692235}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.203476300604392}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.849375065726463, 9.75011761330137, 9.74482543294647, 10.185588984668868]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.20392150534309, 8.445352744593379, 8.362910642622921, 8.724916955054084]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.249729394388652, -4.276043227069777, -4.433253055118105, -4.463602535109037]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.229118526938521, -5.66917772964041, -6.277145846692235, -5.499784676378908]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4679136519304805, -1.609390990308968, -1.6248531229046226, -1.4955523064116107]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6215603039516555, -2.005578163132219, -1.829505914007075, -1.7006169957839148]}}