{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:19.410954", "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-Dec-13_to_2010-Dec-15_296.0_-18.5"}, "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": 2010120000662}, "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": "December 13 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 15 2010"}, "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": 57865.6515926593}, "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", "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": -18.5}, "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": 296.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 294.25}, "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": -17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.15, -21.25], [-66.25, -21.0], [-66.03, -20.47], [-65.68, -20.32], [-65.53, -19.97], [-65.18, -19.82], [-65.15, -19.75], [-65.25, -19.5], [-65.03, -18.97], [-64.68, -18.82], [-64.65, -18.75], [-64.68, -18.68], [-65.03, -18.53], [-65.18, -18.18], [-65.53, -18.03], [-65.75, -17.5], [-65.53, -16.97], [-65.0, -16.75], [-64.75, -16.85], [-64.5, -16.75], [-63.97, -16.97], [-63.82, -17.32], [-63.47, -17.47], [-63.25, -18.0], [-63.35, -18.25], [-63.25, -18.5], [-63.35, -18.75], [-63.25, -19.0], [-63.47, -19.53], [-63.82, -19.68], [-63.85, -19.75], [-63.75, -20.0], [-63.85, -20.25], [-63.75, -20.5], [-63.96, -21.0], [-63.75, -21.5], [-63.97, -22.03], [-64.32, -22.18], [-64.35, -22.25], [-64.25, -22.5], [-64.35, -22.75], [-64.25, -23.0], [-64.35, -23.25], [-64.25, -23.5], [-64.47, -24.03], [-65.0, -24.25], [-65.53, -24.03], [-65.68, -23.68], [-66.03, -23.53], [-66.25, -23.0], [-66.04, -22.5], [-66.25, -22.0], [-66.15, -21.75], [-66.25, -21.5], [-66.15, -21.25]]]]}, "2010-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.15, -21.25], [-66.25, -21.0], [-66.03, -20.47], [-65.68, -20.32], [-65.53, -19.97], [-65.18, -19.82], [-65.15, -19.75], [-65.25, -19.5], [-65.03, -18.97], [-64.68, -18.82], [-64.65, -18.75], [-64.68, -18.68], [-65.03, -18.53], [-65.18, -18.18], [-65.53, -18.03], [-65.75, -17.5], [-65.53, -16.97], [-65.0, -16.75], [-64.75, -16.85], [-64.5, -16.75], [-63.97, -16.97], [-63.82, -17.32], [-63.47, -17.47], [-63.25, -18.0], [-63.35, -18.25], [-63.25, -18.5], [-63.35, -18.75], [-63.25, -19.0], [-63.47, -19.53], [-63.82, -19.68], [-63.85, -19.75], [-63.75, -20.0], [-63.85, -20.25], [-63.75, -20.5], [-63.96, -21.0], [-63.75, -21.5], [-63.97, -22.03], [-64.32, -22.18], [-64.35, -22.25], [-64.25, -22.5], [-64.35, -22.75], [-64.25, -23.0], [-64.35, -23.25], [-64.25, -23.5], [-64.47, -24.03], [-65.0, -24.25], [-65.53, -24.03], [-65.68, -23.68], [-66.03, -23.53], [-66.25, -23.0], [-66.04, -22.5], [-66.25, -22.0], [-66.15, -21.75], [-66.25, -21.5], [-66.15, -21.25]]]]}, "2010-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.15, -21.25], [-66.25, -21.0], [-66.03, -20.47], [-65.68, -20.32], [-65.53, -19.97], [-65.18, -19.82], [-65.15, -19.75], [-65.25, -19.5], [-65.03, -18.97], [-64.68, -18.82], [-64.65, -18.75], [-64.68, -18.68], [-65.03, -18.53], [-65.18, -18.18], [-65.53, -18.03], [-65.75, -17.5], [-65.53, -16.97], [-65.0, -16.75], [-64.75, -16.85], [-64.5, -16.75], [-63.97, -16.97], [-63.82, -17.32], [-63.47, -17.47], [-63.25, -18.0], [-63.35, -18.25], [-63.25, -18.5], [-63.35, -18.75], [-63.25, -19.0], [-63.47, -19.53], [-63.82, -19.68], [-63.85, -19.75], [-63.75, -20.0], [-63.85, -20.25], [-63.75, -20.5], [-63.96, -21.0], [-63.75, -21.5], [-63.97, -22.03], [-64.32, -22.18], [-64.35, -22.25], [-64.25, -22.5], [-64.35, -22.75], [-64.25, -23.0], [-64.35, -23.25], [-64.25, -23.5], [-64.47, -24.03], [-65.0, -24.25], [-65.53, -24.03], [-65.68, -23.68], [-66.03, -23.53], [-66.25, -23.0], [-66.04, -22.5], [-66.25, -22.0], [-66.15, -21.75], [-66.25, -21.5], [-66.15, -21.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.694918849961198}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.846025938535425}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.503076253238476, 12.291257685679852, 13.304545268290894]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.201087934965528, 8.008558821406382, 9.163037010452399]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.369861795574667, -3.594815641422329, -2.5734003786092785]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.694918849961198, -4.4864104344425755, -3.170929225022064]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-3.13275475478732, -2.060548848560546, -1.5255026169898485]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-4.254344183869104, -2.3109567910304727, -2.0227826962072415]}}