{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:37.324476", "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": "2021-Mar-18_to_2021-Mar-21_297.5_-10.0"}, "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": 2021030000736}, "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": "March 18 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 21 2021"}, "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": 67135.94932679295}, "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.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": -10.0}, "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": 297.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.75}, "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": -11.75}, "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": {"2021-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.03, -10.53], [-64.25, -10.0], [-64.03, -9.47], [-63.5, 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-10.53]]]]}, "2021-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.53, -10.53], [-64.75, -10.0], [-64.53, -9.47], [-64.0, -9.25], [-63.75, -9.35], [-63.5, -9.25], [-63.25, -9.35], [-63.0, -9.25], [-62.75, -9.35], [-62.68, -9.32], [-62.53, -8.97], [-62.18, -8.82], [-62.15, -8.75], [-62.18, -8.68], [-62.25, -8.65], [-62.5, -8.75], [-63.03, -8.53], [-63.25, -8.0], [-63.15, -7.75], [-63.25, -7.5], [-63.03, -6.97], [-62.68, -6.82], [-62.53, -6.47], [-62.18, -6.32], [-62.03, -5.97], [-61.5, -5.75], [-60.97, -5.97], [-60.75, -6.5], [-60.85, -6.75], [-60.75, -7.0], [-60.85, -7.25], [-60.75, -7.5], [-60.87, -7.8], [-60.47, -7.97], [-60.25, -8.5], [-60.47, -9.03], [-60.82, -9.18], [-60.97, -9.53], [-61.32, -9.68], [-61.35, -9.75], [-61.25, -10.0], [-61.35, -10.25], [-61.25, -10.5], [-61.35, -10.75], [-61.25, -11.0], [-61.35, -11.25], [-61.25, -11.5], [-61.47, -12.03], [-62.0, -12.25], [-62.53, -12.03], [-62.68, -11.68], [-63.03, -11.53], [-63.25, -11.0], [-63.15, 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"The daily evolution of mean t2m.", "value": [24.3818421772051, 24.29383365129462, 24.0354197471936, 24.11939273636102]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.934319196446268, 23.801276600769825, 23.493035055255234, 24.010343536832863]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1275472838538756, -1.1981603715459708, -1.4560638134003185, -1.1818123915558545]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3274262745818532, -1.5770117417767437, -1.894481646730867, -1.3671727279004813]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4873538890194065, -1.5461254282804746, -1.8819393948602026, -1.5490942127831837]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.704858384299134, -1.9881799008890457, -2.387038768568729, -1.7408774291055282]}}