{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:19.005643", "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-Jun-21_to_2020-Jun-27_316.5_-17.0"}, "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": 2020060000629}, "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": "June 21 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 27 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 91149.64457092165}, "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"]}, "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": -17.0}, "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": 316.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "316.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 315.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 320.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-43.5, -16.25], [-42.97, -16.47], [-42.75, -17.0], [-42.97, 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[-42.82, -18.18], [-42.87, -18.3], [-42.75, -18.35], [-42.62, -18.3], [-42.7, -18.12]]]]}, "2020-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.54, -17.5], [-44.75, -17.0], [-44.65, -16.75], [-44.75, -16.5], [-44.53, -15.97], [-44.0, -15.75], [-43.75, -15.85], [-43.5, -15.75], [-42.97, -15.97], [-42.8, -16.38], [-42.5, -16.25], [-41.97, -16.47], [-41.82, -16.82], [-41.75, -16.85], [-41.5, -16.75], [-41.0, -16.96], [-40.5, -16.75], [-40.25, -16.85], [-40.18, -16.82], [-40.03, -16.47], [-39.5, -16.25], [-38.97, -16.47], [-38.75, -17.0], [-38.85, -17.25], [-38.75, -17.5], [-38.97, -18.03], [-39.32, -18.18], [-39.35, -18.25], [-39.25, -18.5], [-39.35, -18.75], [-39.25, -19.0], [-39.47, -19.53], [-40.0, -19.75], [-40.3, -19.62], [-40.47, -20.03], [-41.0, -20.25], [-41.53, -20.03], [-41.68, -19.68], [-41.75, -19.65], [-42.0, -19.75], [-42.25, -19.65], [-42.5, -19.75], [-42.75, -19.65], [-43.0, -19.75], [-43.53, -19.53], [-43.7, -19.12], [-44.0, -19.25], [-44.53, 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-16.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.230339321903955}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.0049300953618596}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.231941585166282, 19.054305628420423, 18.879240308742624, 18.12956311561834, 18.406767564897336, 18.029783099923804, 19.672981005336453]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.231941585166282, 16.07494184676716, 16.2604976471564, 15.309070167822654, 16.31877136959264, 16.8455755057999, 19.672981005336453]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7078362588726463, -1.7921515438333093, -1.7798949470301793, 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