{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:23.835317", "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": "2012-May-18_to_2012-May-20_309.5_-8.5"}, "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": 2012050000976}, "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": "May 18 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 20 2012"}, "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": 106676.35888697798}, "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", "N.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": -8.5}, "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": 309.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "309.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 307.75}, "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": -12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.75, -10.0], [-52.53, -9.47], [-52.18, -9.32], [-52.15, -9.25], [-52.25, -9.0], [-52.03, -8.47], [-51.68, -8.32], [-51.65, -8.25], [-51.75, -8.0], [-51.53, -7.47], [-51.0, -7.25], [-50.75, -7.35], [-50.68, -7.32], [-50.65, -7.25], [-50.68, -7.18], [-51.03, -7.03], [-51.25, -6.5], [-51.03, -5.97], [-50.5, -5.75], [-50.25, -5.85], [-50.0, -5.75], [-49.75, -5.85], [-49.5, -5.75], [-48.97, -5.97], [-48.75, -6.5], [-48.97, -7.03], [-49.32, -7.18], [-49.35, -7.25], [-49.32, -7.32], [-48.97, -7.47], [-48.75, -8.0], [-48.97, -8.53], [-49.32, -8.68], [-49.47, -9.03], [-49.82, -9.18], [-49.85, -9.25], [-49.82, -9.32], [-49.47, -9.47], [-49.25, -10.0], [-49.35, -10.25], [-49.25, -10.5], [-49.35, -10.75], [-49.25, -11.0], [-49.35, -11.25], [-49.25, -11.5], [-49.47, -12.03], [-49.82, -12.18], [-49.97, -12.53], [-50.5, -12.75], [-51.0, -12.54], [-51.5, -12.75], [-52.03, -12.53], [-52.25, -12.0], [-52.15, -11.75], [-52.25, -11.5], [-52.04, -11.0], [-52.18, -10.68], [-52.53, -10.53], [-52.75, -10.0]]]]}, "2012-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.75, -10.0], [-52.53, -9.47], [-52.18, -9.32], [-52.15, -9.25], [-52.25, -9.0], [-52.03, -8.47], [-51.68, -8.32], [-51.65, -8.25], [-51.75, -8.0], [-51.53, -7.47], [-51.0, -7.25], [-50.75, -7.35], [-50.68, -7.32], [-50.65, -7.25], [-50.68, -7.18], [-51.03, -7.03], [-51.25, -6.5], [-51.03, -5.97], [-50.5, -5.75], [-50.25, -5.85], [-50.0, -5.75], [-49.75, -5.85], [-49.5, -5.75], [-48.97, -5.97], [-48.75, -6.5], [-48.97, -7.03], [-49.32, -7.18], [-49.35, -7.25], [-49.32, -7.32], [-48.97, -7.47], [-48.75, -8.0], [-48.97, -8.53], [-49.32, -8.68], [-49.47, -9.03], [-49.82, -9.18], [-49.85, -9.25], [-49.82, -9.32], [-49.47, -9.47], [-49.25, -10.0], [-49.35, -10.25], [-49.25, -10.5], [-49.35, -10.75], [-49.25, -11.0], [-49.35, -11.25], [-49.25, -11.5], [-49.47, -12.03], [-49.82, -12.18], [-49.97, -12.53], [-50.5, -12.75], [-51.0, -12.54], [-51.5, -12.75], [-52.03, -12.53], [-52.25, -12.0], [-52.15, -11.75], [-52.25, -11.5], [-52.04, -11.0], [-52.18, -10.68], [-52.53, -10.53], [-52.75, -10.0]]]]}, "2012-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.75, -10.0], [-52.53, -9.47], [-52.18, -9.32], [-52.15, -9.25], [-52.25, -9.0], [-52.03, -8.47], [-51.68, -8.32], [-51.65, -8.25], [-51.75, -8.0], [-51.53, -7.47], [-51.0, -7.25], [-50.75, -7.35], [-50.68, -7.32], [-50.65, -7.25], [-50.68, -7.18], [-51.03, -7.03], [-51.25, -6.5], [-51.03, -5.97], [-50.5, -5.75], [-50.25, -5.85], [-50.0, -5.75], [-49.75, -5.85], [-49.5, -5.75], [-48.97, -5.97], [-48.75, -6.5], [-48.97, -7.03], [-49.32, -7.18], [-49.35, -7.25], [-49.32, -7.32], [-48.97, -7.47], [-48.75, -8.0], [-48.97, -8.53], [-49.32, -8.68], [-49.47, -9.03], [-49.82, -9.18], [-49.85, -9.25], [-49.82, -9.32], [-49.47, -9.47], [-49.25, -10.0], [-49.35, -10.25], [-49.25, -10.5], [-49.35, -10.75], [-49.25, -11.0], [-49.35, -11.25], [-49.25, -11.5], [-49.47, -12.03], [-49.82, -12.18], [-49.97, -12.53], [-50.5, -12.75], [-51.0, -12.54], [-51.5, -12.75], [-52.03, -12.53], [-52.25, -12.0], [-52.15, -11.75], [-52.25, -11.5], [-52.04, -11.0], [-52.18, -10.68], [-52.53, -10.53], [-52.75, -10.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.391428592046566}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.868305971524948}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.693638967629283, 24.048897142204794, 24.620733198070013]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.243775934003963, 22.804583445154606, 23.130122427836852]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6262118154101213, -2.277798360155545, -1.7009077390091778]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.217386099609371, -3.391428592046566, -2.180399698246333]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.56074495090537, -2.2319287920139974, -1.7052217393063545]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0884575513438013, -3.1532855919219958, -2.210055395438954]}}