{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:10.194167", "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-Aug-19_to_2012-Aug-23_312.0_-15.5"}, "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": 2012080000894}, "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": "August 19 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 23 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": 134531.88043716658}, "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": -15.5}, "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": 312.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "312.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 310.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 315.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.0, -14.75], [-47.75, -14.85], [-47.5, -14.75], [-46.97, 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"MultiPolygon", "coordinates": [[[[-49.65, -16.25], [-49.75, -16.0], [-49.65, -15.75], [-49.75, -15.5], [-49.65, -15.25], [-49.75, -15.0], [-49.54, -14.5], [-49.75, -14.0], [-49.53, -13.47], [-49.0, -13.25], [-48.75, -13.35], [-48.68, -13.32], [-48.53, -12.97], [-48.0, -12.75], [-47.75, -12.85], [-47.68, -12.82], [-47.53, -12.47], [-47.18, -12.32], [-47.03, -11.97], [-46.68, -11.82], [-46.53, -11.47], [-46.0, -11.25], [-45.47, -11.47], [-45.32, -11.82], [-45.25, -11.85], [-45.0, -11.75], [-44.75, -11.85], [-44.5, -11.75], [-43.97, -11.97], [-43.75, -12.5], [-43.97, -13.03], [-44.5, -13.25], [-44.75, -13.15], [-45.0, -13.25], [-45.25, -13.15], [-45.32, -13.18], [-45.47, -13.53], [-45.82, -13.68], [-45.85, -13.75], [-45.75, -14.0], [-45.96, -14.5], [-45.75, -15.0], [-45.97, -15.53], [-46.32, -15.68], [-46.35, -15.75], [-46.25, -16.0], [-46.47, -16.53], [-46.82, -16.68], [-46.97, -17.03], [-47.32, -17.18], [-47.47, -17.53], [-48.0, -17.75], [-48.25, -17.65], [-48.5, -17.75], [-48.75, 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"2012-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.53, -14.53], [-49.75, -14.0], [-49.53, -13.47], [-49.0, -13.25], [-48.75, -13.35], [-48.5, -13.25], [-48.0, -13.46], [-47.5, -13.25], [-47.0, -13.46], [-46.5, -13.25], [-45.97, -13.47], [-45.75, -14.0], [-45.97, -14.53], [-46.5, -14.75], [-46.8, -14.62], [-46.96, -15.0], [-46.75, -15.5], [-46.97, -16.03], [-47.5, -16.25], [-47.75, -16.15], [-48.0, -16.25], [-48.3, -16.12], [-48.47, -16.53], [-49.0, -16.75], [-49.53, -16.53], [-49.75, -16.0], [-49.53, -15.47], [-49.0, -15.25], [-48.7, -15.38], [-48.53, -14.97], [-48.12, -14.8], [-48.2, -14.62], [-48.5, -14.75], [-48.75, -14.65], [-49.0, -14.75], [-49.53, -14.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.3421203791854737}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.1941976291567182}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.939029519581254, 21.291724977417857, 21.838445029892284, 21.424990634740368, 22.267563395664922]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.753115854591385, 18.885880878909518, 19.230822839706377, 18.739061567905253, 20.32979875059823]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9132128936545008, -2.3511762635366464, -2.023648635527641, -2.3925748684305495, -1.854055847689537]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.3189025945121102, -3.001356447424371, -2.746538055559597, -3.3421203791854737, -2.316946933603049]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3761326194567753, -1.7311681660721183, -1.5331891356357934, -1.8043518180672509, -1.5059990116837774]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.619611363811421, -2.1877503428254625, -2.125782784614443, -2.1838452498986953, -2.184817906485167]}}