{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:36.199542", "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-Feb-12_to_2012-Feb-15_310.0_-18.0"}, "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": 2012020000737}, "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 12 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 15 2012"}, "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": 64912.65021904993}, "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": -18.0}, "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": 310.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "310.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 309.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 312.75}, "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": -15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.0, -17.25], [-49.47, -17.47], [-49.25, -18.0], [-49.47, -18.53], [-50.0, -18.75], [-50.53, -18.53], [-50.75, -18.0], [-50.53, -17.47], [-50.0, -17.25]]]]}, "2012-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.25, -17.0], [-51.03, -16.47], [-50.68, -16.32], [-50.53, -15.97], [-50.0, -15.75], [-49.75, -15.85], [-49.5, -15.75], [-49.25, -15.85], [-49.18, -15.82], [-49.03, -15.47], [-48.5, -15.25], [-48.25, -15.35], [-48.0, -15.25], [-47.75, -15.35], [-47.5, -15.25], [-46.97, -15.47], [-46.75, -16.0], [-46.97, -16.53], [-47.5, -16.75], [-47.75, -16.65], [-47.82, -16.68], [-47.85, -16.75], [-47.75, -17.0], [-47.85, -17.25], [-47.75, -17.5], [-47.97, -18.03], [-48.32, -18.18], [-48.47, -18.53], [-48.82, -18.68], [-48.85, -18.75], [-48.75, -19.0], [-48.97, -19.53], [-49.5, -19.75], [-49.75, -19.65], [-50.0, -19.75], [-50.53, -19.53], [-50.75, -19.0], [-50.65, -18.75], [-50.75, -18.5], [-50.65, -18.25], [-50.75, -18.0], [-50.65, -17.75], [-50.68, -17.68], [-51.03, -17.53], [-51.25, -17.0]]]]}, "2012-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.25, -17.0], [-51.03, -16.47], [-50.68, -16.32], [-50.53, -15.97], [-50.0, -15.75], [-49.75, -15.85], [-49.5, -15.75], [-49.25, -15.85], [-49.18, -15.82], [-49.03, -15.47], [-48.5, -15.25], [-48.25, -15.35], [-48.0, -15.25], [-47.75, -15.35], [-47.5, -15.25], [-46.97, -15.47], [-46.75, -16.0], [-46.97, -16.53], [-47.5, -16.75], [-47.75, -16.65], [-47.82, -16.68], [-47.85, -16.75], [-47.75, -17.0], [-47.85, -17.25], [-47.75, -17.5], [-47.97, -18.03], [-48.32, -18.18], [-48.47, -18.53], [-48.82, -18.68], [-48.85, -18.75], [-48.75, -19.0], [-48.97, -19.53], [-49.5, -19.75], [-49.75, -19.65], [-50.0, -19.75], [-50.53, -19.53], [-50.75, -19.0], [-50.65, -18.75], [-50.75, -18.5], [-50.65, -18.25], [-50.75, -18.0], [-50.65, -17.75], [-50.68, -17.68], [-51.03, -17.53], [-51.25, -17.0]]]]}, "2012-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.25, -17.0], [-51.03, -16.47], [-50.68, -16.32], [-50.53, -15.97], [-50.0, -15.75], [-49.75, -15.85], [-49.5, -15.75], [-49.25, -15.85], [-49.18, -15.82], [-49.03, -15.47], [-48.5, -15.25], [-48.25, -15.35], [-48.0, -15.25], [-47.75, -15.35], [-47.5, -15.25], [-46.97, -15.47], [-46.75, -16.0], [-46.97, -16.53], [-47.5, -16.75], [-47.75, -16.65], [-47.82, -16.68], [-47.85, -16.75], [-47.75, -17.0], [-47.85, -17.25], [-47.75, -17.5], [-47.97, -18.03], [-48.32, -18.18], [-48.47, -18.53], [-48.82, -18.68], [-48.85, -18.75], [-48.75, -19.0], [-48.97, -19.53], [-49.5, -19.75], [-49.75, -19.65], [-50.0, -19.75], [-50.53, -19.53], [-50.75, -19.0], [-50.65, -18.75], [-50.75, -18.5], [-50.65, -18.25], [-50.75, -18.0], [-50.65, -17.75], [-50.68, -17.68], [-51.03, -17.53], [-51.25, -17.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.2922062371219454}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2433743322241937}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.54926121363701, 22.187242233367726, 21.768002224267548, 22.363932106201673]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.54926121363701, 20.209587669076598, 19.674528772722226, 20.866592058422555]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7815687745522268, -2.1791353793005457, -2.602418228077617, -1.9695605510067806]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7815687745522268, -2.745120970327605, -3.2922062371219454, -2.2236827550976273]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3853875870461194, -1.6412656614504981, -1.9580830123691129, -1.4968689957703263]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3853875870461194, -2.0543371242008663, -2.2669072312438794, -1.748389617978371]}}