{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:47.540220", "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-02_to_2010-Oct-04_302.5_-25.5"}, "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": 2010100000162}, "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 02 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 04 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": 93644.92112938163}, "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": -25.5}, "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": 302.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 300.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.15, -26.25], [-60.25, -26.0], [-60.03, -25.47], [-59.5, -25.25], [-59.25, -25.35], [-59.0, -25.25], [-58.75, -25.35], [-58.68, -25.32], [-58.53, -24.97], [-58.0, -24.75], [-57.75, -24.85], [-57.5, -24.75], [-56.97, -24.97], [-56.75, -25.5], [-56.85, -25.75], [-56.82, -25.82], [-56.47, -25.97], [-56.32, -26.32], [-56.25, -26.35], [-56.0, -26.25], [-55.75, -26.35], [-55.5, -26.25], [-54.97, -26.47], [-54.82, -26.82], [-54.75, -26.85], [-54.5, -26.75], [-54.25, -26.85], [-54.0, -26.75], [-53.47, -26.97], [-53.25, -27.5], [-53.47, -28.03], [-53.82, -28.18], [-53.97, -28.53], [-54.32, -28.68], [-54.47, -29.03], [-55.0, -29.25], [-55.25, -29.15], [-55.5, -29.25], [-56.03, -29.03], [-56.18, -28.68], [-56.25, -28.65], [-56.5, -28.75], [-57.03, -28.53], [-57.25, -28.0], [-57.12, -27.7], [-57.25, -27.65], [-57.5, -27.75], [-57.75, -27.65], [-58.0, -27.75], [-58.25, -27.65], [-58.5, -27.75], [-58.75, -27.65], [-59.0, -27.75], [-59.25, -27.65], [-59.5, -27.75], [-60.03, -27.53], [-60.25, -27.0], [-60.15, -26.75], [-60.25, -26.5], [-60.15, -26.25]]]]}, "2010-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.15, -26.25], [-60.25, -26.0], [-60.03, -25.47], [-59.5, -25.25], [-59.25, -25.35], [-59.0, -25.25], [-58.75, -25.35], [-58.68, -25.32], [-58.53, -24.97], [-58.0, -24.75], [-57.75, -24.85], [-57.5, -24.75], [-56.97, -24.97], [-56.75, -25.5], [-56.85, -25.75], [-56.82, -25.82], [-56.47, -25.97], [-56.32, -26.32], [-56.25, -26.35], [-56.0, -26.25], [-55.75, -26.35], [-55.5, -26.25], [-54.97, -26.47], [-54.82, -26.82], [-54.75, -26.85], [-54.5, -26.75], [-54.25, -26.85], [-54.0, -26.75], [-53.47, -26.97], [-53.25, -27.5], [-53.47, -28.03], [-53.82, -28.18], [-53.97, -28.53], [-54.32, -28.68], [-54.47, -29.03], [-55.0, -29.25], [-55.25, -29.15], [-55.5, -29.25], [-56.03, -29.03], [-56.18, -28.68], [-56.25, -28.65], [-56.5, -28.75], [-57.03, -28.53], [-57.25, -28.0], [-57.12, -27.7], [-57.25, -27.65], [-57.5, -27.75], [-57.75, -27.65], [-58.0, -27.75], [-58.25, -27.65], [-58.5, -27.75], [-58.75, -27.65], [-59.0, -27.75], [-59.25, -27.65], [-59.5, -27.75], [-60.03, -27.53], [-60.25, -27.0], [-60.15, -26.75], [-60.25, -26.5], [-60.15, -26.25]]]]}, "2010-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.15, -26.25], [-60.25, -26.0], [-60.03, -25.47], [-59.5, -25.25], [-59.25, -25.35], [-59.0, -25.25], [-58.75, -25.35], [-58.68, -25.32], [-58.53, -24.97], [-58.0, -24.75], [-57.75, -24.85], [-57.5, -24.75], [-56.97, -24.97], [-56.75, -25.5], [-56.85, -25.75], [-56.82, -25.82], [-56.47, -25.97], [-56.32, -26.32], [-56.25, -26.35], [-56.0, -26.25], [-55.75, -26.35], [-55.5, -26.25], [-54.97, -26.47], [-54.82, -26.82], [-54.75, -26.85], [-54.5, -26.75], [-54.25, -26.85], [-54.0, -26.75], [-53.47, -26.97], [-53.25, -27.5], [-53.47, -28.03], [-53.82, -28.18], [-53.97, -28.53], [-54.32, -28.68], [-54.47, -29.03], [-55.0, -29.25], [-55.25, -29.15], [-55.5, -29.25], [-56.03, -29.03], [-56.18, -28.68], [-56.25, -28.65], [-56.5, -28.75], [-57.03, -28.53], [-57.25, -28.0], [-57.12, -27.7], [-57.25, -27.65], [-57.5, -27.75], [-57.75, -27.65], [-58.0, -27.75], [-58.25, -27.65], [-58.5, -27.75], [-58.75, -27.65], [-59.0, -27.75], [-59.25, -27.65], [-59.5, -27.75], [-60.03, -27.53], [-60.25, -27.0], [-60.15, -26.75], [-60.25, -26.5], [-60.15, -26.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.940116790264483}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.3312013250934065}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.08610900001247, 15.09682082218518, 16.413207606546166]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.927996903405358, 13.916813371503565, 15.639259255906552]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.050058186020363, -6.103395122247868, -4.840150667011983]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.891377104610285, -7.940116790264483, -6.431878712030425]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3392365897659237, -1.623017449940326, -1.2899907139664253]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5270576429288192, -1.7683874651725464, -1.596806534374867]}}