{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:57.050152", "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": "2020-Nov-02_to_2020-Nov-05_296.0_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": 2020110000132}, "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 02 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 05 2020"}, "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": 73324.3837060479}, "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": 8.5}, "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": 296.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.0\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": 299.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.15, 9.75], [-65.25, 10.0], [-65.03, 10.53], [-64.5, 10.75], [-64.25, 10.65], [-64.0, 10.75], [-63.75, 10.65], [-63.5, 10.75], [-62.97, 10.53], [-62.75, 10.0], [-62.85, 9.75], [-62.82, 9.68], [-62.5, 9.54], [-62.0, 9.75], [-61.47, 9.53], [-61.25, 9.0], [-61.35, 8.75], [-61.32, 8.68], [-61.25, 8.65], [-61.0, 8.75], [-60.47, 8.53], [-60.25, 8.0], [-60.47, 7.47], [-60.82, 7.32], [-60.97, 6.97], [-61.5, 6.75], [-61.75, 6.85], [-62.0, 6.75], [-62.53, 6.97], [-62.68, 7.32], [-63.0, 7.46], [-63.5, 7.25], [-63.75, 7.35], [-64.0, 7.25], [-64.53, 7.47], [-64.75, 8.0], [-64.65, 8.25], [-64.68, 8.32], [-65.03, 8.47], [-65.25, 9.0], [-65.15, 9.25], [-65.25, 9.5], [-65.15, 9.75]]]]}, "2020-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.15, 9.75], [-65.25, 10.0], [-65.03, 10.53], [-64.5, 10.75], [-64.25, 10.65], [-64.0, 10.75], [-63.75, 10.65], [-63.5, 10.75], [-62.97, 10.53], [-62.75, 10.0], [-62.85, 9.75], [-62.82, 9.68], [-62.5, 9.54], [-62.0, 9.75], [-61.47, 9.53], [-61.25, 9.0], [-61.35, 8.75], [-61.32, 8.68], [-61.25, 8.65], [-61.0, 8.75], [-60.47, 8.53], [-60.25, 8.0], [-60.47, 7.47], [-60.82, 7.32], [-60.97, 6.97], [-61.5, 6.75], [-61.75, 6.85], [-62.0, 6.75], [-62.53, 6.97], [-62.68, 7.32], [-63.0, 7.46], [-63.5, 7.25], [-63.75, 7.35], [-64.0, 7.25], [-64.53, 7.47], [-64.75, 8.0], [-64.65, 8.25], [-64.68, 8.32], [-65.03, 8.47], [-65.25, 9.0], [-65.15, 9.25], [-65.25, 9.5], [-65.15, 9.75]]]]}, "2020-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.15, 9.75], [-65.25, 10.0], [-65.03, 10.53], [-64.5, 10.75], [-64.25, 10.65], [-64.0, 10.75], [-63.75, 10.65], [-63.5, 10.75], [-62.97, 10.53], [-62.75, 10.0], [-62.85, 9.75], [-62.82, 9.68], [-62.5, 9.54], [-62.0, 9.75], [-61.47, 9.53], [-61.25, 9.0], [-61.35, 8.75], [-61.32, 8.68], [-61.25, 8.65], [-61.0, 8.75], [-60.47, 8.53], [-60.25, 8.0], [-60.47, 7.47], [-60.82, 7.32], [-60.97, 6.97], [-61.5, 6.75], [-61.75, 6.85], [-62.0, 6.75], [-62.53, 6.97], [-62.68, 7.32], [-63.0, 7.46], [-63.5, 7.25], [-63.75, 7.35], [-64.0, 7.25], [-64.53, 7.47], [-64.75, 8.0], [-64.65, 8.25], [-64.68, 8.32], [-65.03, 8.47], [-65.25, 9.0], [-65.15, 9.25], [-65.25, 9.5], [-65.15, 9.75]]]]}, "2020-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.0, 9.25], [-63.47, 9.03], [-63.25, 8.5], [-63.47, 7.97], [-64.0, 7.75], [-64.53, 7.97], [-64.75, 8.5], [-64.53, 9.03], [-64.0, 9.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.8283502760057218}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6985545659601269}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.42977453014373, 25.278723401798118, 25.43776666788915, 26.290552374424806]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.079040787303313, 21.51006958198508, 22.03291276802713, 26.290552374424806]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.349219990961984, -1.4743213976228777, -1.2934977903132274, -1.1855430215351248]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.8283502760057218, -1.9789037812128072, -1.510418443624303, -1.1855430215351248]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.7843507035896433, -1.733268499845698, -1.5006257620250532, -1.238940829523169]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.328669869678227, -2.3160932234657112, -1.7672289632444227, -1.238940829523169]}}