{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:16.267028", "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": "2019-Aug-03_to_2019-Aug-05_310.0_-26.5"}, "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": 2019080000130}, "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 03 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2019"}, "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": 50033.771756299255}, "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": ["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": -26.5}, "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": 310.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "310.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 308.75}, "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": -27.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.75, -24.0], [-51.53, -23.47], [-51.0, -23.25], [-50.75, -23.35], [-50.5, -23.25], [-49.97, -23.47], [-49.82, -23.82], [-49.47, -23.97], [-49.25, -24.5], [-49.35, -24.75], [-49.32, -24.82], [-48.97, -24.97], [-48.75, -25.5], [-48.85, -25.75], [-48.75, -26.0], [-48.87, -26.3], [-48.47, -26.47], [-48.25, -27.0], [-48.47, -27.53], [-48.82, -27.68], [-48.97, -28.03], [-49.5, -28.25], [-49.75, -28.15], [-50.0, -28.25], [-50.53, -28.03], [-50.68, -27.68], [-51.03, -27.53], [-51.25, -27.0], [-51.15, -26.75], [-51.25, -26.5], [-51.15, -26.25], [-51.25, -26.0], [-51.04, -25.5], [-51.25, -25.0], [-51.15, -24.75], [-51.18, -24.68], [-51.53, -24.53], [-51.75, -24.0]]]]}, "2019-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.75, -24.0], [-51.53, -23.47], [-51.0, -23.25], [-50.75, -23.35], [-50.5, -23.25], [-49.97, -23.47], [-49.82, -23.82], [-49.47, -23.97], [-49.25, -24.5], [-49.35, -24.75], [-49.32, -24.82], [-48.97, -24.97], [-48.75, -25.5], [-48.85, -25.75], [-48.75, -26.0], [-48.87, -26.3], [-48.47, -26.47], [-48.25, -27.0], [-48.47, -27.53], [-48.82, -27.68], [-48.97, -28.03], [-49.5, -28.25], [-49.75, -28.15], [-50.0, -28.25], [-50.53, -28.03], [-50.68, -27.68], [-51.03, -27.53], [-51.25, -27.0], [-51.15, -26.75], [-51.25, -26.5], [-51.15, -26.25], [-51.25, -26.0], [-51.04, -25.5], [-51.25, -25.0], [-51.15, -24.75], [-51.18, -24.68], [-51.53, -24.53], [-51.75, -24.0]]]]}, "2019-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.75, -24.0], [-51.53, -23.47], [-51.0, -23.25], [-50.75, -23.35], [-50.5, -23.25], [-49.97, -23.47], [-49.82, -23.82], [-49.47, -23.97], [-49.25, -24.5], [-49.35, -24.75], [-49.32, -24.82], [-48.97, -24.97], [-48.75, -25.5], [-48.85, -25.75], [-48.75, -26.0], [-48.87, -26.3], [-48.47, -26.47], [-48.25, -27.0], [-48.47, -27.53], [-48.82, -27.68], [-48.97, -28.03], [-49.5, -28.25], [-49.75, -28.15], [-50.0, -28.25], [-50.53, -28.03], [-50.68, -27.68], [-51.03, -27.53], [-51.25, -27.0], [-51.15, -26.75], [-51.25, -26.5], [-51.15, -26.25], [-51.25, -26.0], [-51.04, -25.5], [-51.25, -25.0], [-51.15, -24.75], [-51.18, -24.68], [-51.53, -24.53], [-51.75, -24.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.7538717925944525}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.000523795420416}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.091827834842718, 7.028144814676523, 9.132783374989458]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [4.659271582697386, 4.760547450979573, 7.100868131332447]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.815984434218219, -7.080524510727622, -5.105062441315407]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.505193594383286, -7.7538717925944525, -5.8960752652121755]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7342455550613918, -2.196294462699828, -1.6175914515138212]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9801163859160078, -2.3601456218321437, -1.8862834548779999]}}