{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:44.054638", "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": "2011-Jun-27_to_2011-Jun-29_315.5_-24.5"}, "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": 2011060001374}, "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": "June 27 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2011"}, "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": 56506.81267946287}, "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": ["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": -24.5}, "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": 315.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "315.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 315.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 318.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.68, -23.68], [-45.03, -23.53], [-45.25, -23.0], [-45.03, -22.47], [-44.5, -22.25], [-44.25, -22.35], [-44.0, -22.25], [-43.47, -22.47], [-43.32, -22.82], [-43.25, -22.85], [-43.18, -22.82], [-43.03, -22.47], [-42.5, -22.25], [-41.97, -22.47], [-41.82, -22.82], [-41.47, -22.97], [-41.25, -23.5], [-41.35, -23.75], [-41.25, -24.0], [-41.35, -24.25], [-41.25, -24.5], [-41.47, -25.03], [-42.0, -25.25], [-42.25, -25.15], [-42.5, -25.25], [-42.75, -25.15], [-42.82, -25.18], [-42.97, -25.53], [-43.5, -25.75], [-44.03, -25.53], [-44.18, -25.18], [-44.25, -25.15], [-44.5, -25.25], [-45.03, -25.03], [-45.25, -24.5], [-45.03, -23.97], [-44.68, -23.82], [-44.65, -23.75], [-44.68, -23.68]]]]}, "2011-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.68, -23.68], [-45.03, -23.53], [-45.25, -23.0], [-45.03, -22.47], [-44.5, -22.25], [-44.25, -22.35], [-44.0, -22.25], [-43.47, -22.47], [-43.32, -22.82], [-43.25, -22.85], [-43.18, -22.82], [-43.03, -22.47], [-42.5, -22.25], [-41.97, -22.47], [-41.82, -22.82], [-41.47, -22.97], [-41.25, -23.5], [-41.35, -23.75], [-41.25, -24.0], [-41.35, -24.25], [-41.25, -24.5], [-41.47, -25.03], [-42.0, -25.25], [-42.25, -25.15], [-42.5, -25.25], [-42.75, -25.15], [-42.82, -25.18], [-42.97, -25.53], [-43.5, -25.75], [-44.03, -25.53], [-44.18, -25.18], [-44.25, -25.15], [-44.5, -25.25], [-45.03, -25.03], [-45.25, -24.5], [-45.03, -23.97], [-44.68, -23.82], [-44.65, -23.75], [-44.68, -23.68]]]]}, "2011-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.68, -23.68], [-45.03, -23.53], [-45.25, -23.0], [-45.03, -22.47], [-44.5, -22.25], [-44.25, -22.35], [-44.0, -22.25], [-43.47, -22.47], [-43.32, -22.82], [-43.25, -22.85], [-43.18, -22.82], [-43.03, -22.47], [-42.5, -22.25], [-41.97, -22.47], [-41.82, -22.82], [-41.47, -22.97], [-41.25, -23.5], [-41.35, -23.75], [-41.25, -24.0], [-41.35, -24.25], [-41.25, -24.5], [-41.47, -25.03], [-42.0, -25.25], [-42.25, -25.15], [-42.5, -25.25], [-42.75, -25.15], [-42.82, -25.18], [-42.97, -25.53], [-43.5, -25.75], [-44.03, -25.53], [-44.18, -25.18], [-44.25, -25.15], [-44.5, -25.25], [-45.03, -25.03], [-45.25, -24.5], [-45.03, -23.97], [-44.68, -23.82], [-44.65, -23.75], [-44.68, -23.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.429862516739547}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.340139014849014}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.55338562750353, 18.977687639324756, 19.926897496511913]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.354601906737912, 14.175048216773007, 15.325434232097336]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.2860100692431784, -2.834901651713764, -1.8995053235900996]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.388796295329769, -4.429862516739547, -3.34012778326462]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8738551144220643, -2.2557072314446485, -1.5109456638122745]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.6544737528368083, -2.436702262918114, -1.716440354635274]}}