{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:37.071430", "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-Sep-11_to_2010-Sep-14_315.0_-17.0"}, "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": 2010090000540}, "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": "September 11 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 14 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": 70853.51671256029}, "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": -17.0}, "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": 315.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "315.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 313.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 316.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.15, -17.25], [-46.25, -17.0], [-46.15, -16.75], [-46.25, -16.5], [-46.03, -15.97], [-45.68, -15.82], [-45.53, -15.47], [-45.18, -15.32], [-45.03, -14.97], [-44.5, -14.75], [-43.97, -14.97], [-43.82, -15.32], [-43.47, -15.47], [-43.25, -16.0], [-43.35, -16.25], [-43.25, -16.5], [-43.47, -17.03], [-43.82, -17.18], [-43.87, -17.3], [-43.75, -17.35], [-43.5, -17.25], [-42.97, -17.47], [-42.75, -18.0], [-42.85, -18.25], [-42.75, -18.5], [-42.85, -18.75], [-42.75, -19.0], [-42.97, -19.53], [-43.5, -19.75], [-43.75, -19.65], [-44.0, -19.75], [-44.53, -19.53], [-44.68, -19.18], [-45.03, -19.03], [-45.18, -18.68], [-45.25, -18.65], [-45.5, -18.75], [-46.03, -18.53], [-46.25, -18.0], [-46.15, -17.75], [-46.25, -17.5], [-46.15, -17.25]]]]}, "2010-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.75, -17.0], [-46.53, -16.47], [-46.18, -16.32], [-46.03, -15.97], [-45.68, -15.82], [-45.65, -15.75], [-45.75, -15.5], [-45.53, -14.97], [-45.0, -14.75], [-44.75, -14.85], [-44.5, -14.75], [-43.97, -14.97], [-43.82, -15.32], [-43.47, -15.47], [-43.25, -16.0], [-43.35, -16.25], [-43.25, -16.5], [-43.47, -17.03], [-43.82, -17.18], [-43.87, -17.3], [-43.75, -17.35], [-43.5, -17.25], [-42.97, -17.47], [-42.75, -18.0], [-42.85, -18.25], [-42.75, -18.5], [-42.85, -18.75], [-42.75, -19.0], [-42.97, -19.53], [-43.5, -19.75], [-43.75, -19.65], [-44.0, -19.75], [-44.53, -19.53], [-44.68, -19.18], [-45.03, -19.03], [-45.18, -18.68], [-45.25, -18.65], [-45.5, -18.75], [-46.03, -18.53], [-46.25, -18.0], [-46.15, -17.75], [-46.18, -17.68], [-46.53, -17.53], [-46.75, -17.0]]]]}, "2010-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.75, -17.0], [-46.53, -16.47], [-46.18, -16.32], [-46.03, -15.97], [-45.68, -15.82], [-45.65, -15.75], [-45.75, -15.5], [-45.53, -14.97], [-45.0, -14.75], [-44.75, -14.85], [-44.5, -14.75], [-43.97, -14.97], [-43.82, -15.32], [-43.47, -15.47], [-43.25, -16.0], [-43.35, -16.25], [-43.25, -16.5], [-43.47, -17.03], [-43.82, -17.18], [-43.87, -17.3], [-43.75, -17.35], [-43.5, -17.25], [-42.97, -17.47], [-42.75, -18.0], [-42.85, -18.25], [-42.75, -18.5], [-42.85, -18.75], [-42.75, -19.0], [-42.97, -19.53], [-43.5, -19.75], [-43.75, -19.65], [-44.0, -19.75], [-44.53, -19.53], [-44.68, -19.18], [-45.03, -19.03], [-45.18, -18.68], [-45.25, -18.65], [-45.5, -18.75], [-46.03, -18.53], [-46.25, -18.0], [-46.15, -17.75], [-46.18, -17.68], [-46.53, -17.53], [-46.75, -17.0]]]]}, "2010-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.53, -17.53], [-46.75, -17.0], [-46.53, -16.47], [-46.0, -16.25], [-45.47, -16.47], [-45.25, -17.0], [-45.47, -17.53], [-46.0, -17.75], [-46.53, -17.53]]], [[[-45.53, -16.03], [-45.75, -15.5], [-45.53, -14.97], [-45.0, -14.75], [-44.47, -14.97], [-44.25, -15.5], [-44.47, -16.03], [-45.0, -16.25], [-45.53, -16.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.3659249618350486}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.701120307418842}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.499909259440926, 21.531618953082386, 22.217995308983575, 24.429959397328105]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.844938334470157, 16.428561813601107, 17.185886506299596, 24.39322702374278]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.724435745356167, -2.986801330538936, -2.4536320865481827, -1.9863368631150422]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.3659249618350486, -3.1398801696958003, -2.9670333838018905, -2.03616068756304]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5437074285954586, -1.7835632840618683, -1.474189572769017, -1.2924794215334612]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8296274493205444, -2.0774944921074763, -1.9561571166703788, -1.315960055310142]}}