{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:18.186541", "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": "2015-Feb-18_to_2015-Feb-20_308.5_-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": 2015020000693}, "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": "February 18 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 20 2015"}, "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": 112734.81306051332}, "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", "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": -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": 308.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "308.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 306.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 310.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.53, -15.47], [-53.18, -15.32], [-53.03, -14.97], [-52.68, -14.82], [-52.65, -14.75], [-52.75, -14.5], [-52.53, -13.97], [-52.0, -13.75], [-51.75, -13.85], [-51.5, -13.75], [-51.25, -13.85], [-51.0, -13.75], [-50.47, -13.97], [-50.32, -14.32], [-49.97, -14.47], [-49.75, -15.0], [-49.85, -15.25], [-49.82, -15.32], [-49.47, -15.47], [-49.32, -15.82], [-48.97, -15.97], [-48.75, -16.5], [-48.97, -17.03], [-49.5, -17.25], [-49.8, -17.12], [-49.85, -17.25], [-49.82, -17.32], [-49.47, -17.47], [-49.25, -18.0], [-49.47, -18.53], [-49.82, -18.68], [-49.97, -19.03], [-50.5, -19.25], [-51.03, -19.03], [-51.18, -18.68], [-51.53, -18.53], [-51.68, -18.18], [-52.03, -18.03], [-52.18, -17.68], [-52.25, -17.65], [-52.5, -17.75], [-53.03, -17.53], [-53.18, -17.18], [-53.53, -17.03], [-53.75, -16.5], [-53.65, -16.25], [-53.75, -16.0], [-53.53, -15.47]]]]}, "2015-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.53, -15.47], [-53.18, -15.32], [-53.03, -14.97], [-52.68, -14.82], [-52.65, -14.75], [-52.75, -14.5], [-52.53, -13.97], [-52.0, -13.75], [-51.75, -13.85], [-51.5, -13.75], [-51.25, -13.85], [-51.0, -13.75], [-50.47, -13.97], [-50.32, -14.32], [-49.97, -14.47], [-49.75, -15.0], [-49.85, -15.25], [-49.82, -15.32], [-49.47, -15.47], [-49.32, -15.82], [-48.97, -15.97], [-48.75, -16.5], [-48.97, -17.03], [-49.5, -17.25], [-49.8, -17.12], [-49.85, -17.25], [-49.82, -17.32], [-49.47, -17.47], [-49.25, -18.0], [-49.47, -18.53], [-49.82, -18.68], [-49.97, -19.03], [-50.5, -19.25], [-51.03, -19.03], [-51.18, -18.68], [-51.53, -18.53], [-51.68, -18.18], [-52.03, -18.03], [-52.18, -17.68], [-52.25, -17.65], [-52.5, -17.75], [-53.03, -17.53], [-53.18, -17.18], [-53.53, -17.03], [-53.75, -16.5], [-53.65, -16.25], [-53.75, -16.0], [-53.53, -15.47]]]]}, "2015-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.53, -15.47], [-53.18, -15.32], [-53.03, -14.97], [-52.68, -14.82], [-52.65, -14.75], [-52.75, -14.5], [-52.53, -13.97], [-52.0, -13.75], [-51.75, -13.85], [-51.5, -13.75], [-51.25, -13.85], [-51.0, -13.75], [-50.47, -13.97], [-50.32, -14.32], [-49.97, -14.47], [-49.75, -15.0], [-49.85, -15.25], [-49.82, -15.32], [-49.47, -15.47], [-49.32, -15.82], [-48.97, -15.97], [-48.75, -16.5], [-48.97, -17.03], [-49.5, -17.25], [-49.8, -17.12], [-49.85, -17.25], [-49.82, -17.32], [-49.47, -17.47], [-49.25, -18.0], [-49.47, -18.53], [-49.82, -18.68], [-49.97, -19.03], [-50.5, -19.25], [-51.03, -19.03], [-51.18, -18.68], [-51.53, -18.53], [-51.68, -18.18], [-52.03, -18.03], [-52.18, -17.68], [-52.25, -17.65], [-52.5, -17.75], [-53.03, -17.53], [-53.18, -17.18], [-53.53, -17.03], [-53.75, -16.5], [-53.65, -16.25], [-53.75, -16.0], [-53.53, -15.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.7222547910498633}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.157925387138464}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.15480122887601, 23.068415975315247, 23.028402026696142]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.032523523671216, 21.07269298129762, 20.49969782829072]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.044979826016409, -2.169335756514628, -2.259460578884355]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.7222547910498633, -2.6034507878905515, -2.661585283245188]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5502206932427252, -1.6592547264124269, -1.8087690435440453]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9893950804658005, -1.8770177245730042, -2.156773682788574]}}