{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:06.563407", "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-Aug-30_to_2014-Sep-02_310.5_-6.0"}, "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": 2014080001250}, "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": "August 30 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 02 2014"}, "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": 55385.373855699494}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "N.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": -6.0}, "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": 310.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "310.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 307.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 311.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.25, -5.0], [-52.15, -4.75], [-52.25, -4.5], [-52.03, -3.97], [-51.5, -3.75], [-51.25, -3.85], [-51.0, -3.75], [-50.5, -3.96], [-50.0, -3.75], [-49.47, -3.97], [-49.32, -4.32], [-48.97, -4.47], [-48.82, -4.82], [-48.47, -4.97], [-48.25, -5.5], [-48.35, -5.75], [-48.25, -6.0], [-48.47, -6.53], [-49.0, -6.75], [-49.25, -6.65], [-49.5, -6.75], [-49.75, -6.65], [-50.0, -6.75], [-50.3, -6.62], [-50.47, -7.03], [-51.0, -7.25], [-51.53, -7.03], [-51.68, -6.68], [-51.75, -6.65], [-52.0, -6.75], [-52.53, -6.53], [-52.75, -6.0], [-52.53, -5.47], [-52.18, -5.32], [-52.15, -5.25], [-52.25, -5.0]]]]}, "2014-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.25, -5.0], [-52.15, -4.75], [-52.25, -4.5], [-52.03, -3.97], [-51.5, -3.75], [-51.25, -3.85], [-51.0, -3.75], [-50.5, -3.96], [-50.0, -3.75], [-49.47, -3.97], [-49.32, -4.32], [-48.97, -4.47], [-48.82, -4.82], [-48.47, -4.97], [-48.25, -5.5], [-48.35, -5.75], [-48.25, -6.0], [-48.47, -6.53], [-49.0, -6.75], [-49.25, -6.65], [-49.5, -6.75], [-49.75, -6.65], [-50.0, -6.75], [-50.3, -6.62], [-50.47, -7.03], [-51.0, -7.25], [-51.53, -7.03], [-51.68, -6.68], [-51.75, -6.65], [-52.0, -6.75], [-52.53, -6.53], [-52.75, -6.0], [-52.53, -5.47], [-52.18, -5.32], [-52.15, -5.25], [-52.25, -5.0]]]]}, "2014-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.25, -5.0], [-52.15, -4.75], [-52.25, -4.5], [-52.03, -3.97], [-51.5, -3.75], [-51.25, -3.85], [-51.0, -3.75], [-50.5, -3.96], [-50.0, -3.75], [-49.47, -3.97], [-49.32, -4.32], [-48.97, -4.47], [-48.82, -4.82], [-48.47, -4.97], [-48.25, -5.5], [-48.35, -5.75], [-48.25, -6.0], [-48.47, -6.53], [-49.0, -6.75], [-49.25, -6.65], [-49.5, -6.75], [-49.75, -6.65], [-50.0, -6.75], [-50.3, -6.62], [-50.47, -7.03], [-51.0, -7.25], [-51.53, -7.03], [-51.68, -6.68], [-51.75, -6.65], [-52.0, -6.75], [-52.53, -6.53], [-52.75, -6.0], [-52.53, -5.47], [-52.18, -5.32], [-52.15, -5.25], [-52.25, -5.0]]]]}, "2014-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.5, -5.25], [-48.97, -5.47], [-48.75, -6.0], [-48.97, -6.53], [-49.5, -6.75], [-50.03, -6.53], [-50.25, -6.0], [-50.03, -5.47], [-49.5, -5.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.8963187141477533}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.4091708034121624}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.070870142796934, 26.084612892283417, 26.192432957292056, 26.70818669405486]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.816258320984446, 24.748743069147338, 24.96688327429854, 26.70818669405486]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4615762477605598, -1.442637103205145, -1.339182595288965, -1.123267155084875]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.8772830788670944, -1.8963187141477533, -1.8424836846280641, -1.123267155084875]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6825232034174011, -1.6140209662496265, -1.5054972728747262, -1.4186471037521802]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1007291673174326, -1.8721564473548213, -1.689941181388495, -1.4186471037521802]}}