{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:53.864379", "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-Mar-10_to_2014-Mar-12_303.5_-21.0"}, "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": 2014030000485}, "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": "March 10 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 12 2014"}, "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": 77455.99930032658}, "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": ["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": -21.0}, "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": 303.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 301.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 305.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.53, -22.03], [-58.75, -21.5], [-58.53, -20.97], [-58.0, -20.75], [-57.75, -20.85], [-57.5, -20.75], [-57.25, -20.85], [-57.18, -20.82], [-57.15, -20.75], [-57.25, -20.5], [-57.03, -19.97], [-56.5, -19.75], [-56.0, -19.96], [-55.5, -19.75], [-54.97, -19.97], [-54.82, -20.32], [-54.47, -20.47], [-54.25, -21.0], [-54.35, -21.25], [-54.32, -21.32], [-53.97, -21.47], [-53.75, -22.0], [-53.85, -22.25], [-53.75, -22.5], [-53.85, -22.75], [-53.75, -23.0], [-53.97, -23.53], [-54.5, -23.75], [-54.75, -23.65], [-55.0, -23.75], [-55.25, -23.65], [-55.5, -23.75], [-55.75, -23.65], [-56.0, -23.75], [-56.53, -23.53], [-56.68, -23.18], [-57.03, -23.03], [-57.25, -22.5], [-57.15, -22.25], [-57.18, -22.18], [-57.25, -22.15], [-57.5, -22.25], [-57.75, -22.15], [-58.0, -22.25], [-58.53, -22.03]]]]}, "2014-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.53, -22.03], [-58.75, -21.5], [-58.53, -20.97], [-58.0, -20.75], [-57.75, -20.85], [-57.5, -20.75], [-57.25, -20.85], [-57.18, -20.82], [-57.15, -20.75], [-57.25, -20.5], [-57.03, -19.97], [-56.5, -19.75], [-56.0, -19.96], [-55.5, -19.75], [-54.97, -19.97], [-54.82, -20.32], [-54.47, -20.47], [-54.25, -21.0], [-54.35, -21.25], [-54.32, -21.32], [-53.97, -21.47], [-53.75, -22.0], [-53.85, -22.25], [-53.75, -22.5], [-53.85, -22.75], [-53.75, -23.0], [-53.97, -23.53], [-54.5, -23.75], [-54.75, -23.65], [-55.0, -23.75], [-55.25, -23.65], [-55.5, -23.75], [-55.75, -23.65], [-56.0, -23.75], [-56.53, -23.53], [-56.68, -23.18], [-57.03, -23.03], [-57.25, -22.5], [-57.15, -22.25], [-57.18, -22.18], [-57.25, -22.15], [-57.5, -22.25], [-57.75, -22.15], [-58.0, -22.25], [-58.53, -22.03]]]]}, "2014-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.53, -22.03], [-58.75, -21.5], [-58.53, -20.97], [-58.0, -20.75], [-57.75, -20.85], [-57.5, -20.75], [-57.25, -20.85], [-57.18, -20.82], [-57.15, -20.75], [-57.25, -20.5], [-57.03, -19.97], [-56.5, -19.75], [-56.0, -19.96], [-55.5, -19.75], [-54.97, -19.97], [-54.82, -20.32], [-54.47, -20.47], [-54.25, -21.0], [-54.35, -21.25], [-54.32, -21.32], [-53.97, -21.47], [-53.75, -22.0], [-53.85, -22.25], [-53.75, -22.5], [-53.85, -22.75], [-53.75, -23.0], [-53.97, -23.53], [-54.5, -23.75], [-54.75, -23.65], [-55.0, -23.75], [-55.25, -23.65], [-55.5, -23.75], [-55.75, -23.65], [-56.0, -23.75], [-56.53, -23.53], [-56.68, -23.18], [-57.03, -23.03], [-57.25, -22.5], [-57.15, -22.25], [-57.18, -22.18], [-57.25, -22.15], [-57.5, -22.25], [-57.75, -22.15], [-58.0, -22.25], [-58.53, -22.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.623956115373744}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.933138491025776}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.595073299231444, 22.362101607441673, 23.47198709685142]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.897210277155523, 21.278744011704703, 22.49886590755466]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.575155865745705, -3.727216924637572, -2.4970426826940506]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.8306664968442306, -4.623956115373744, -2.93212349947612]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5850202079472675, -2.2341518082338676, -1.4690468538961194]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.314143975888229, -2.5815722083743426, -1.9295356006294961]}}