{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:28.124060", "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": "2014-Jan-12_to_2014-Jan-16_306.5_-24.5"}, "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": 2014010000566}, "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": "January 12 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 16 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 140774.54607271214}, "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", "Brazil", "Paraguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": []}, "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": -24.5}, "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": 306.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "306.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 304.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 308.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.03, -27.03], [-54.25, -26.5], [-54.03, -25.97], [-53.5, 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[-54.03, -27.03], [-54.18, -26.68], [-54.53, -26.53], [-54.75, -26.0], [-54.65, -25.75], [-54.75, -25.5], [-54.65, -25.25], [-54.68, -25.18], [-55.03, -25.03], [-55.18, -24.68], [-55.53, -24.53], [-55.75, -24.0], [-55.65, -23.75], [-55.75, -23.5], [-55.54, -23.0]]]]}, "2014-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.54, -23.0], [-55.75, -22.5], [-55.54, -22.0], [-55.75, -21.5], [-55.53, -20.97], [-55.0, -20.75], [-54.5, -20.96], [-54.0, -20.75], [-53.47, -20.97], [-53.25, -21.5], [-53.35, -21.75], [-53.32, -21.82], [-52.97, -21.97], [-52.82, -22.32], [-52.47, -22.47], [-52.25, -23.0], [-52.35, -23.25], [-52.32, -23.32], [-51.97, -23.47], [-51.82, -23.82], [-51.47, -23.97], [-51.32, -24.32], [-50.97, -24.47], [-50.75, -25.0], [-50.85, -25.25], [-50.75, -25.5], [-50.97, -26.03], [-51.32, -26.18], [-51.47, -26.53], [-51.82, -26.68], [-51.85, -26.75], [-51.75, -27.0], [-51.97, -27.53], [-52.5, -27.75], [-53.03, -27.53], [-53.18, -27.18], [-53.25, -27.15], 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[-54.15, -24.75], [-54.25, -24.5], [-54.03, -23.97], [-53.68, -23.82], [-53.65, -23.75], [-53.68, -23.68], [-53.75, -23.65], [-54.0, -23.75], [-54.53, -23.53], [-54.68, -23.18], [-55.03, -23.03], [-55.25, -22.5], [-55.15, -22.25], [-55.25, -22.0], [-55.03, -21.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.430261874046778}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.519977137168645}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.02620559753001, 22.068337831922577, 21.62454312139573, 22.136370182719304, 22.061336606871066]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.632749368206817, 18.507092235974312, 18.432580194442323, 18.274530709164367, 18.560475041316238]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.196308258516524, -2.389609309641416, -2.89863386567101, -2.4238557791111246, -2.2736162027051137]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.3324037965150524, -2.920536273185121, -3.430261874046778, -3.165628907407836, -2.677117443471616]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4196574444349757, -1.5173851439093333, -1.842985297502204, -1.5816194504358458, -1.5511348764520057]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4645988187695618, -1.7639455717837973, -2.1520967786754794, -1.9160639776507302, -1.8535208508398255]}}