{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:36.235920", "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": "2016-Nov-18_to_2016-Nov-20_307.5_-19.0"}, "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": 2016110000634}, "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": "November 18 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 20 2016"}, "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": 54700.44757205948}, "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", "South-American-Monsoon"]}, "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": -19.0}, "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": 307.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "307.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 305.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 307.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.65, -22.25], [-54.75, -22.0], [-54.65, -21.75], [-54.75, -21.5], [-54.65, -21.25], [-54.75, -21.0], [-54.65, -20.75], [-54.75, -20.5], [-54.65, -20.25], [-54.75, -20.0], [-54.53, -19.47], [-54.18, -19.32], [-54.03, -18.97], [-53.68, -18.82], [-53.53, -18.47], [-53.0, -18.25], [-52.75, -18.35], [-52.5, -18.25], [-51.97, -18.47], [-51.75, -19.0], [-51.97, -19.53], [-52.5, -19.75], [-52.75, -19.65], [-52.82, -19.68], [-52.97, -20.03], [-53.32, -20.18], [-53.35, -20.25], [-53.32, -20.32], [-53.25, -20.35], [-53.0, -20.25], [-52.47, -20.47], [-52.25, -21.0], [-52.35, -21.25], [-52.25, -21.5], [-52.35, -21.75], [-52.25, -22.0], [-52.35, -22.25], [-52.25, -22.5], [-52.35, -22.75], [-52.25, -23.0], [-52.47, -23.53], [-53.0, -23.75], [-53.5, -23.54], [-54.0, -23.75], [-54.53, -23.53], [-54.75, -23.0], [-54.65, -22.75], [-54.75, -22.5], [-54.65, -22.25]]]]}, "2016-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.65, -22.25], [-54.75, -22.0], [-54.65, -21.75], [-54.75, -21.5], [-54.65, -21.25], [-54.75, -21.0], [-54.65, -20.75], [-54.75, -20.5], [-54.65, -20.25], [-54.75, -20.0], [-54.53, -19.47], [-54.18, -19.32], [-54.03, -18.97], [-53.68, -18.82], [-53.53, -18.47], [-53.0, -18.25], [-52.75, -18.35], [-52.5, -18.25], [-51.97, -18.47], [-51.75, -19.0], [-51.97, -19.53], [-52.5, -19.75], [-52.75, -19.65], [-52.82, -19.68], [-52.97, -20.03], [-53.32, -20.18], [-53.35, -20.25], [-53.32, -20.32], [-53.25, -20.35], [-53.0, -20.25], [-52.47, -20.47], [-52.25, -21.0], [-52.35, -21.25], [-52.25, -21.5], [-52.35, -21.75], [-52.25, -22.0], [-52.35, -22.25], [-52.25, -22.5], [-52.35, -22.75], [-52.25, -23.0], [-52.47, -23.53], [-53.0, -23.75], [-53.5, -23.54], [-54.0, -23.75], [-54.53, -23.53], [-54.75, -23.0], [-54.65, -22.75], [-54.75, -22.5], [-54.65, -22.25]]]]}, "2016-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.65, -22.25], [-54.75, -22.0], [-54.65, -21.75], [-54.75, -21.5], [-54.65, -21.25], [-54.75, -21.0], [-54.65, -20.75], [-54.75, -20.5], [-54.65, -20.25], [-54.75, -20.0], [-54.53, -19.47], [-54.18, -19.32], [-54.03, -18.97], [-53.68, -18.82], [-53.53, -18.47], [-53.0, -18.25], [-52.75, -18.35], [-52.5, -18.25], [-51.97, -18.47], [-51.75, -19.0], [-51.97, -19.53], [-52.5, -19.75], [-52.75, -19.65], [-52.82, -19.68], [-52.97, -20.03], [-53.32, -20.18], [-53.35, -20.25], [-53.32, -20.32], [-53.25, -20.35], [-53.0, -20.25], [-52.47, -20.47], [-52.25, -21.0], [-52.35, -21.25], [-52.25, -21.5], [-52.35, -21.75], [-52.25, -22.0], [-52.35, -22.25], [-52.25, -22.5], [-52.35, -22.75], [-52.25, -23.0], [-52.47, -23.53], [-53.0, -23.75], [-53.5, -23.54], [-54.0, -23.75], [-54.53, -23.53], [-54.75, -23.0], [-54.65, -22.75], [-54.75, -22.5], [-54.65, -22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.643189404667055}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.311833772183826}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.695367870944835, 21.256402704188815, 22.735145832852368]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.289376762191807, 20.48358477528342, 21.80366315079266]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7886951448817556, -4.269589492565991, -2.8772166791037295]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.5875581403805654, -4.643189404667055, -3.6555532070975687]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.561926905364364, -2.443294202858069, -1.6628617560058014]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8335889001417114, -2.85635758797351, -2.3180181752455242]}}