{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:51.131525", "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-Nov-30_to_2012-Dec-04_296.5_8.0"}, "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": 2012110001154}, "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 30 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 04 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 58138.7759535551}, "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": ["Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": 8.0}, "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": 296.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.25, 8.0], [-63.03, 8.53], [-62.5, 8.75], [-61.97, 8.53], [-61.82, 8.18], [-61.47, 8.03], [-61.25, 7.5], [-61.47, 6.97], [-62.0, 6.75], [-62.53, 6.97], [-62.68, 7.32], [-63.03, 7.47], [-63.25, 8.0]]]]}, "2012-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, 8.5], [-64.15, 8.75], [-64.25, 9.0], [-64.03, 9.53], [-63.5, 9.75], [-63.25, 9.65], [-63.0, 9.75], [-62.75, 9.65], [-62.68, 9.68], [-62.53, 10.03], [-62.0, 10.25], [-61.47, 10.03], [-61.25, 9.5], [-61.35, 9.25], [-61.25, 9.0], [-61.47, 8.47], [-61.82, 8.32], [-61.85, 8.25], [-61.82, 8.18], [-61.47, 8.03], [-61.25, 7.5], [-61.47, 6.97], [-62.0, 6.75], [-62.25, 6.85], [-62.5, 6.75], [-63.0, 6.96], [-63.5, 6.75], [-63.75, 6.85], [-64.0, 6.75], [-64.53, 6.97], [-64.75, 7.5], [-64.53, 8.03], [-64.18, 8.18], [-64.15, 8.25], [-64.25, 8.5]]]]}, "2012-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, 8.0], [-64.53, 8.53], [-64.18, 8.68], [-64.15, 8.75], [-64.25, 9.0], [-64.03, 9.53], [-63.5, 9.75], [-63.25, 9.65], [-63.0, 9.75], [-62.75, 9.65], [-62.68, 9.68], [-62.53, 10.03], [-62.0, 10.25], [-61.47, 10.03], [-61.25, 9.5], [-61.35, 9.25], [-61.25, 9.0], [-61.47, 8.47], [-61.82, 8.32], [-61.85, 8.25], [-61.82, 8.18], [-61.47, 8.03], [-61.25, 7.5], [-61.47, 6.97], [-62.0, 6.75], [-62.25, 6.85], [-62.5, 6.75], [-62.8, 6.88], [-62.97, 6.47], [-63.5, 6.25], [-63.75, 6.35], [-64.0, 6.25], [-64.25, 6.35], [-64.5, 6.25], [-65.03, 6.47], [-65.25, 7.0], [-65.03, 7.53], [-64.68, 7.68], [-64.65, 7.75], [-64.75, 8.0]]]]}, "2012-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, 8.0], [-64.53, 8.53], [-64.18, 8.68], [-64.15, 8.75], [-64.25, 9.0], [-64.03, 9.53], [-63.5, 9.75], [-63.25, 9.65], [-63.0, 9.75], [-62.75, 9.65], [-62.68, 9.68], [-62.53, 10.03], [-62.0, 10.25], [-61.47, 10.03], [-61.25, 9.5], [-61.35, 9.25], [-61.25, 9.0], [-61.47, 8.47], [-61.82, 8.32], [-61.85, 8.25], [-61.75, 8.0], [-61.85, 7.75], [-61.75, 7.5], [-61.97, 6.97], [-62.5, 6.75], [-62.8, 6.88], [-62.97, 6.47], [-63.5, 6.25], [-63.75, 6.35], [-64.0, 6.25], [-64.25, 6.35], [-64.5, 6.25], [-65.03, 6.47], [-65.25, 7.0], [-65.03, 7.53], [-64.68, 7.68], [-64.65, 7.75], [-64.75, 8.0]]]]}, "2012-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, 8.0], [-64.53, 8.53], [-64.0, 8.75], [-63.75, 8.65], [-63.5, 8.75], [-62.97, 8.53], [-62.8, 8.12], [-62.5, 8.25], [-61.97, 8.03], [-61.75, 7.5], [-61.97, 6.97], [-62.5, 6.75], [-62.8, 6.88], [-62.97, 6.47], [-63.5, 6.25], [-63.75, 6.35], [-64.0, 6.25], [-64.25, 6.35], [-64.5, 6.25], [-65.03, 6.47], [-65.25, 7.0], [-65.03, 7.53], [-64.68, 7.68], [-64.65, 7.75], [-64.75, 8.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.7200993083484377}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6051424321643386}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.523903350116484, 25.109495059886967, 24.97844257614696, 24.247928499576915, 24.994981678132774]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.99050416473608, 24.018163601051185, 23.846739310912255, 23.445002924364132, 23.860850030801487]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5211726039503048, -1.42095447172062, -1.4108872110142467, -2.1133759541544634, -1.2893180408035079]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6121957895094283, -1.8623565235333785, -1.7933617825879082, -3.7200993083484377, -1.5787188498189835]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8766520300171883, -1.757476360974269, -1.7040691341853718, -2.550993101435713, -1.5895503050642281]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8794937165877124, -2.294123467683337, -2.2551759723510005, -3.9260265097017433, -2.121975128576654]}}