{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:56.092781", "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-Jul-16_to_2012-Jul-19_294.5_-18.0"}, "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": 2012070000896}, "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": "July 16 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 19 2012"}, "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": 149128.45907334817}, "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", "Bolivia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "S.W.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": -18.0}, "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": 294.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "294.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 290.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 296.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.25, -22.5], [-66.15, -22.25], [-66.25, -22.0], [-66.15, -21.75], [-66.25, -21.5], [-66.15, -21.25], [-66.25, -21.0], [-66.03, -20.47], [-65.68, -20.32], [-65.65, -20.25], [-65.75, -20.0], [-65.54, -19.5], [-65.68, -19.18], [-66.03, -19.03], [-66.25, -18.5], [-66.15, -18.25], [-66.25, -18.0], [-66.03, -17.47], [-65.5, -17.25], [-65.25, -17.35], [-65.0, -17.25], [-64.47, -17.47], [-64.3, -17.88], [-64.0, -17.75], [-63.47, -17.97], [-63.25, -18.5], [-63.47, -19.03], [-63.82, -19.18], [-63.85, -19.25], [-63.75, -19.5], [-63.85, -19.75], [-63.75, -20.0], [-63.97, -20.53], [-64.32, -20.68], [-64.35, -20.75], [-64.25, -21.0], [-64.46, -21.5], [-64.25, -22.0], [-64.47, -22.53], [-64.82, -22.68], [-64.85, -22.75], [-64.75, -23.0], [-64.85, -23.25], [-64.75, -23.5], [-64.97, -24.03], [-65.5, -24.25], [-65.75, -24.15], [-66.0, -24.25], [-66.53, -24.03], [-66.75, -23.5], [-66.53, -22.97], [-66.18, -22.82], [-66.15, -22.75], [-66.25, -22.5]]]]}, "2012-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.5, -14.25], [-68.25, -14.35], [-68.0, -14.25], [-67.47, -14.47], [-67.32, -14.82], [-66.97, -14.97], [-66.75, -15.5], [-66.85, -15.75], [-66.82, -15.82], [-66.75, -15.85], [-66.5, -15.75], [-65.97, -15.97], [-65.82, -16.32], [-65.47, -16.47], [-65.32, -16.82], [-64.97, -16.97], [-64.82, -17.32], [-64.47, -17.47], [-64.3, -17.88], [-64.0, -17.75], [-63.47, -17.97], [-63.25, -18.5], [-63.47, -19.03], [-63.82, -19.18], [-63.85, -19.25], [-63.75, -19.5], [-63.85, -19.75], [-63.75, -20.0], [-63.97, -20.53], [-64.32, -20.68], [-64.35, -20.75], [-64.25, -21.0], [-64.46, -21.5], [-64.25, -22.0], [-64.47, -22.53], [-64.82, -22.68], [-64.85, -22.75], [-64.75, -23.0], [-64.85, -23.25], [-64.75, -23.5], [-64.97, -24.03], [-65.5, -24.25], [-65.75, -24.15], [-66.0, -24.25], [-66.53, -24.03], [-66.75, -23.5], [-66.53, -22.97], [-66.18, -22.82], [-66.15, -22.75], [-66.25, -22.5], [-66.15, -22.25], [-66.25, -22.0], [-66.15, -21.75], [-66.25, -21.5], [-66.15, -21.25], [-66.25, -21.0], [-66.15, -20.75], [-66.25, -20.5], [-66.47, -21.03], [-67.0, -21.25], [-67.53, -21.03], [-67.75, -20.5], [-67.65, -20.25], [-67.75, -20.0], [-67.65, -19.75], [-67.68, -19.68], [-68.03, -19.53], [-68.25, -19.0], [-68.03, -18.47], [-67.68, -18.32], [-67.65, -18.25], [-67.68, -18.18], [-67.75, -18.15], [-68.0, -18.25], [-68.25, -18.15], [-68.5, -18.25], [-69.03, -18.03], [-69.25, -17.5], [-69.03, -16.97], [-68.68, -16.82], [-68.65, -16.75], [-68.75, -16.5], [-68.57, -16.07], [-69.0, -16.25], [-69.53, -16.03], [-69.75, -15.5], [-69.53, -14.97], [-69.18, -14.82], [-69.03, -14.47], [-68.5, -14.25]], [[-66.15, -20.25], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.15, -20.25]], [[-66.15, -19.75], [-66.18, -19.68], [-66.3, -19.62], [-66.35, -19.75], [-66.25, -20.0], [-66.15, -19.75]], [[-68.18, -15.82], [-68.15, -15.75], [-68.18, -15.68], [-68.25, -15.65], [-68.32, -15.68], [-68.43, -15.93], [-68.18, -15.82]]]]}, "2012-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.5, -14.25], [-68.25, -14.35], [-68.0, -14.25], [-67.47, -14.47], [-67.32, -14.82], [-66.97, -14.97], [-66.75, -15.5], [-66.85, -15.75], [-66.82, -15.82], [-66.75, -15.85], [-66.5, -15.75], [-65.97, -15.97], [-65.82, -16.32], [-65.47, -16.47], [-65.32, -16.82], [-64.97, -16.97], [-64.82, -17.32], [-64.47, -17.47], [-64.3, -17.88], [-64.0, -17.75], [-63.47, -17.97], [-63.25, -18.5], [-63.47, -19.03], [-63.82, -19.18], [-63.85, -19.25], [-63.75, -19.5], [-63.85, -19.75], [-63.75, -20.0], [-63.97, -20.53], [-64.32, -20.68], [-64.35, -20.75], [-64.25, -21.0], [-64.46, -21.5], [-64.25, -22.0], [-64.47, -22.53], [-64.82, -22.68], [-64.85, -22.75], [-64.75, -23.0], [-64.85, -23.25], [-64.75, -23.5], [-64.97, -24.03], [-65.5, -24.25], [-65.75, -24.15], [-66.0, -24.25], [-66.53, -24.03], [-66.75, -23.5], [-66.53, -22.97], [-66.18, -22.82], [-66.15, -22.75], [-66.25, -22.5], [-66.15, -22.25], [-66.25, -22.0], [-66.15, -21.75], [-66.25, -21.5], [-66.15, -21.25], [-66.25, -21.0], [-66.15, -20.75], [-66.25, -20.5], [-66.47, -21.03], [-67.0, -21.25], [-67.53, -21.03], [-67.75, -20.5], [-67.65, -20.25], [-67.75, -20.0], [-67.65, -19.75], [-67.68, -19.68], [-68.03, -19.53], [-68.25, -19.0], [-68.03, -18.47], [-67.68, -18.32], [-67.65, -18.25], [-67.68, -18.18], [-67.75, -18.15], [-68.0, -18.25], [-68.25, -18.15], [-68.5, -18.25], [-69.03, -18.03], [-69.25, -17.5], [-69.03, -16.97], [-68.68, -16.82], [-68.65, -16.75], [-68.75, -16.5], [-68.57, -16.07], [-69.0, -16.25], [-69.53, -16.03], [-69.75, -15.5], [-69.53, -14.97], [-69.18, -14.82], [-69.03, -14.47], [-68.5, -14.25]], [[-66.15, -20.25], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.15, -20.25]], [[-66.15, -19.75], [-66.18, -19.68], [-66.3, -19.62], [-66.35, -19.75], [-66.25, -20.0], [-66.15, -19.75]], [[-68.18, -15.82], [-68.15, -15.75], [-68.18, -15.68], [-68.25, -15.65], [-68.32, -15.68], [-68.43, -15.93], [-68.18, -15.82]]]]}, "2012-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.5, -14.25], [-68.25, -14.35], [-68.0, -14.25], [-67.47, -14.47], [-67.32, -14.82], [-66.97, -14.97], [-66.75, -15.5], [-66.85, -15.75], [-66.82, -15.82], [-66.75, -15.85], [-66.5, -15.75], [-65.97, -15.97], [-65.82, -16.32], [-65.47, -16.47], [-65.32, -16.82], [-64.97, -16.97], [-64.75, -17.5], [-64.85, -17.75], [-64.75, -18.0], [-64.96, -18.5], [-64.75, -19.0], [-64.85, -19.25], [-64.82, -19.32], [-64.47, -19.47], [-64.25, -20.0], [-64.47, -20.53], [-64.82, -20.68], [-64.97, -21.03], [-65.5, -21.25], [-66.03, -21.03], [-66.25, -20.5], [-66.47, -21.03], [-67.0, -21.25], [-67.53, -21.03], [-67.75, -20.5], [-67.65, -20.25], [-67.75, -20.0], [-67.65, -19.75], [-67.68, -19.68], [-68.03, -19.53], [-68.25, -19.0], [-68.03, -18.47], [-67.68, -18.32], [-67.65, -18.25], [-67.68, -18.18], [-67.75, -18.15], [-68.0, -18.25], [-68.25, -18.15], [-68.5, -18.25], [-69.03, -18.03], [-69.25, -17.5], [-69.03, -16.97], [-68.68, -16.82], [-68.65, -16.75], [-68.75, -16.5], [-68.57, -16.07], [-69.0, -16.25], [-69.53, -16.03], [-69.75, -15.5], [-69.53, -14.97], [-69.18, -14.82], [-69.03, -14.47], [-68.5, -14.25]], [[-66.15, -20.25], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.15, -20.25]], [[-66.15, -19.75], [-66.18, -19.68], [-66.3, -19.62], [-66.35, -19.75], [-66.25, -20.0], [-66.15, -19.75]], [[-68.18, -15.82], [-68.15, -15.75], [-68.18, -15.68], [-68.25, -15.65], [-68.32, -15.68], [-68.43, -15.93], [-68.18, -15.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.548883864567017}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5645519761428437}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.201393341370704, 5.09583703723257, 5.172610663178375, 6.157036129219364]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.07808973270385877, -1.9881448543863485, -0.31199082825548885, 0.3382853907235699]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.160365295107047, -3.7903153079541414, -3.731905514567073, -2.59590874095206]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.438591799872427, -6.548883864567017, -5.500003539592512, -3.6091201972824365]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.761347326486352, -2.035710763849137, -2.116979952133157, -1.708355934592201]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.197506240829967, -3.293171550705467, -2.7888224278631553, -2.254665011237555]}}