{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:52.641660", "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": "2013-Jul-22_to_2013-Jul-25_312.0_-4.5"}, "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": 2013070001197}, "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": "July 22 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 25 2013"}, "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": 111095.84875190133}, "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": ["South Atlantic Ocean"]}, "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": -4.5}, "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": 312.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "312.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 309.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 313.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.03, -3.97], [-48.5, -3.75], [-48.25, -3.85], [-48.0, -3.75], [-47.47, -3.97], [-47.25, -4.5], [-47.47, -5.03], [-47.82, -5.18], [-47.97, -5.53], [-48.5, -5.75], [-49.03, -5.53], [-49.25, -5.0], [-49.15, -4.75], [-49.25, -4.5], [-49.03, -3.97]]]]}, "2013-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.75, -1.5], [-50.53, -0.97], [-50.0, -0.75], [-49.47, -0.97], [-49.32, -1.32], [-49.25, -1.35], [-49.18, -1.32], [-49.03, -0.97], [-48.5, -0.75], [-48.25, -0.85], [-48.0, -0.75], [-47.75, -0.85], [-47.5, -0.75], [-46.97, -0.97], [-46.75, -1.5], [-46.85, -1.75], [-46.75, -2.0], [-46.85, -2.25], [-46.75, -2.5], [-46.85, -2.75], [-46.75, -3.0], [-46.85, -3.25], [-46.82, -3.32], [-46.47, -3.47], [-46.25, -4.0], [-46.35, -4.25], [-46.25, -4.5], [-46.47, -5.03], [-47.0, -5.25], [-47.5, -5.04], [-47.82, -5.18], [-47.97, -5.53], [-48.5, -5.75], [-49.03, -5.53], [-49.18, -5.18], [-49.25, -5.15], [-49.5, -5.25], [-50.03, -5.03], [-50.25, -4.5], [-50.15, -4.25], [-50.25, -4.0], [-50.15, -3.75], [-50.25, -3.5], [-50.15, -3.25], [-50.25, -3.0], [-50.15, -2.75], [-50.25, -2.5], [-50.15, -2.25], [-50.18, -2.18], [-50.53, -2.03], [-50.75, -1.5]]]]}, "2013-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.75, -1.5], [-50.53, -0.97], [-50.0, -0.75], [-49.47, -0.97], [-49.32, -1.32], [-49.25, -1.35], [-49.18, -1.32], [-49.03, -0.97], [-48.5, -0.75], [-48.25, -0.85], [-48.0, -0.75], [-47.75, -0.85], [-47.5, -0.75], [-46.97, -0.97], [-46.75, -1.5], [-46.85, -1.75], [-46.75, -2.0], [-46.85, -2.25], [-46.75, -2.5], [-46.85, -2.75], [-46.75, -3.0], [-46.85, -3.25], [-46.82, -3.32], [-46.47, -3.47], [-46.25, -4.0], [-46.35, -4.25], [-46.25, -4.5], [-46.47, -5.03], [-47.0, -5.25], [-47.5, -5.04], [-47.82, -5.18], [-47.97, -5.53], [-48.5, -5.75], [-49.03, -5.53], [-49.18, -5.18], [-49.25, -5.15], [-49.5, -5.25], [-50.03, -5.03], [-50.25, -4.5], [-50.15, -4.25], [-50.25, -4.0], [-50.15, -3.75], [-50.25, -3.5], [-50.15, -3.25], [-50.25, -3.0], [-50.15, -2.75], [-50.25, -2.5], [-50.15, -2.25], [-50.18, -2.18], [-50.53, -2.03], [-50.75, -1.5]]]]}, "2013-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.75, -1.5], [-50.53, -0.97], [-50.0, -0.75], [-49.47, -0.97], [-49.32, -1.32], [-49.25, -1.35], [-49.18, -1.32], [-49.03, -0.97], [-48.5, -0.75], [-48.25, -0.85], [-48.0, -0.75], [-47.75, -0.85], [-47.5, -0.75], [-46.97, -0.97], [-46.75, -1.5], [-46.85, -1.75], [-46.75, -2.0], [-46.85, -2.25], [-46.75, -2.5], [-46.85, -2.75], [-46.75, -3.0], [-46.85, -3.25], [-46.82, -3.32], [-46.47, -3.47], [-46.25, -4.0], [-46.35, -4.25], [-46.25, -4.5], [-46.47, -5.03], [-47.0, -5.25], [-47.5, -5.04], [-47.82, -5.18], [-47.97, -5.53], [-48.5, -5.75], [-49.03, -5.53], [-49.18, -5.18], [-49.25, -5.15], [-49.5, -5.25], [-50.03, -5.03], [-50.25, -4.5], [-50.15, -4.25], [-50.25, -4.0], [-50.15, -3.75], [-50.25, -3.5], [-50.15, -3.25], [-50.25, -3.0], [-50.15, -2.75], [-50.25, -2.5], [-50.15, -2.25], [-50.18, -2.18], [-50.53, -2.03], [-50.75, -1.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.9012902565742706}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.612424698846667}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.932713892257595, 25.391152049366212, 25.61398486679485, 25.868373443460825]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.44891177450296, 24.563158495927667, 24.726524610998013, 25.2128452197353]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4275572884845171, -1.7942136074638582, -1.6280199357057006, -1.4304461709006218]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.5441050346024099, -2.9012902565742706, -2.1535758821936497, -2.096091438012479]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5246707287286865, -2.125912459269557, -1.9830169209053738, -1.6847581041446988]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6790275313870902, -2.8208371614083156, -2.7780881214956294, -2.0128348106312535]}}