{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:25.291862", "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-Aug-18_to_2010-Aug-21_322.5_-8.5"}, "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": 2010080000819}, "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 18 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 2010"}, "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": 76553.94403496693}, "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"]}, "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": -8.5}, "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": 322.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "322.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 320.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 324.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.25, -6.0], [-40.03, -5.47], [-39.5, -5.25], [-39.25, -5.35], [-39.0, -5.25], [-38.47, -5.47], [-38.32, -5.82], [-37.97, -5.97], [-37.82, -6.32], [-37.47, -6.47], [-37.32, -6.82], [-36.97, -6.97], [-36.75, -7.5], [-36.85, -7.75], [-36.82, -7.82], [-36.47, -7.97], [-36.32, -8.32], [-35.97, -8.47], [-35.75, -9.0], [-35.97, -9.53], [-36.5, -9.75], [-36.75, -9.65], [-37.0, -9.75], [-37.25, -9.65], [-37.5, -9.75], [-38.03, -9.53], [-38.18, -9.18], [-38.53, -9.03], [-38.68, -8.68], [-39.03, -8.53], [-39.18, -8.18], [-39.53, -8.03], [-39.75, -7.5], [-39.65, -7.25], [-39.75, -7.0], [-39.65, -6.75], [-39.68, -6.68], [-40.03, -6.53], [-40.25, -6.0]]]]}, "2010-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.03, -5.47], [-39.5, -5.25], [-39.25, -5.35], [-39.0, -5.25], [-38.47, -5.47], [-38.32, -5.82], [-37.97, -5.97], [-37.82, -6.32], [-37.47, -6.47], [-37.32, -6.82], [-36.97, -6.97], [-36.75, -7.5], [-36.85, -7.75], [-36.82, -7.82], [-36.5, -7.96], [-36.0, -7.75], [-35.47, -7.97], [-35.25, -8.5], [-35.35, -8.75], [-35.25, -9.0], [-35.47, -9.53], [-36.0, -9.75], [-36.25, -9.65], [-36.32, -9.68], [-36.47, -10.03], [-37.0, -10.25], [-37.53, -10.03], [-37.68, -9.68], [-38.03, -9.53], [-38.18, -9.18], [-38.25, -9.15], [-38.5, -9.25], [-39.03, -9.03], [-39.25, -8.5], [-39.15, -8.25], [-39.18, -8.18], [-39.53, -8.03], [-39.75, -7.5], [-39.65, -7.25], [-39.68, -7.18], [-40.03, -7.03], [-40.25, -6.5], [-40.15, -6.25], [-40.25, -6.0], [-40.03, -5.47]]]]}, "2010-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.03, -5.47], [-39.5, -5.25], [-39.25, -5.35], [-39.0, -5.25], [-38.47, -5.47], [-38.32, -5.82], [-37.97, -5.97], [-37.82, -6.32], [-37.47, -6.47], [-37.32, -6.82], [-36.97, -6.97], [-36.75, -7.5], [-36.85, -7.75], [-36.82, -7.82], [-36.5, -7.96], [-36.0, -7.75], [-35.47, -7.97], [-35.25, -8.5], [-35.35, -8.75], [-35.25, -9.0], [-35.47, -9.53], [-36.0, -9.75], [-36.25, -9.65], [-36.32, -9.68], [-36.47, -10.03], [-37.0, -10.25], [-37.53, -10.03], [-37.68, -9.68], [-38.03, -9.53], [-38.18, -9.18], [-38.25, -9.15], [-38.5, -9.25], [-39.03, -9.03], [-39.25, -8.5], [-39.15, -8.25], [-39.18, -8.18], [-39.53, -8.03], [-39.75, -7.5], [-39.65, -7.25], [-39.68, -7.18], [-40.03, -7.03], [-40.25, -6.5], [-40.15, -6.25], [-40.25, -6.0], [-40.03, -5.47]]]]}, "2010-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.5, -7.25], [-38.25, -7.35], [-38.0, -7.25], [-37.75, -7.35], [-37.5, -7.25], [-36.97, -7.47], [-36.82, -7.82], [-36.5, -7.96], [-36.0, -7.75], [-35.47, -7.97], [-35.25, -8.5], [-35.35, -8.75], [-35.25, -9.0], [-35.47, -9.53], [-36.0, -9.75], [-36.25, -9.65], [-36.32, -9.68], [-36.47, -10.03], [-37.0, -10.25], [-37.53, -10.03], [-37.68, -9.68], [-38.03, -9.53], [-38.18, -9.18], [-38.25, -9.15], [-38.5, -9.25], [-39.03, -9.03], [-39.25, -8.5], [-39.15, -8.25], [-39.25, -8.0], [-39.03, -7.47], [-38.5, -7.25]]], [[[-40.03, -7.03], [-40.25, -6.5], [-40.03, -5.97], [-39.5, -5.75], [-38.97, -5.97], [-38.75, -6.5], [-38.97, -7.03], [-39.5, -7.25], [-40.03, -7.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.6757436632828444}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8119979593944457}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.780439074657863, 22.262759889907045, 22.61455441171006, 21.397933374196555]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.863425063656223, 18.552190091120906, 18.66683371372278, 18.915172765585396]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7535853823068663, -2.0693477080631237, -1.7732195242420266, -1.5051385810976683]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.153726346035114, -2.6757436632828444, -2.1222748833433798, -1.9558470733527429]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5493772178004899, -1.89598557013107, -1.6650676980126815, -1.4567252753702087]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7381478559981889, -2.2315722036376386, -1.9845535604568305, -1.7339365039732926]}}