{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:39.791621", "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": "2010-Sep-27_to_2010-Oct-02_81.5_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": 2010090001170}, "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": "September 27 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 02 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 107111.2578304192}, "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": ["Sri Lanka"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Bay-of-Bengal", "Equatorial.Indian-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Bay of Bengal"]}, "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": 81.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "81.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 79.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 84.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.75}, "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": {"2010-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.5, 7.25], [84.03, 7.03], [84.25, 6.5], [84.03, 5.97], [83.5, 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7.75]]], [[[79.25, 8.5], [79.47, 9.03], [80.0, 9.25], [80.53, 9.03], [80.75, 8.5], [80.53, 7.97], [80.0, 7.75], [79.47, 7.97], [79.25, 8.5]]], [[[82.25, 8.5], [82.03, 7.97], [81.5, 7.75], [80.97, 7.97], [80.75, 8.5], [80.97, 9.03], [81.5, 9.25], [82.03, 9.03], [82.25, 8.5]]]]}, "2010-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.47, 7.97], [79.25, 8.5], [79.47, 9.03], [80.0, 9.25], [80.53, 9.03], [80.75, 8.5], [80.53, 7.97], [80.0, 7.75], [79.47, 7.97]]], [[[82.03, 9.03], [82.25, 8.5], [82.03, 7.97], [81.5, 7.75], [80.97, 7.97], [80.75, 8.5], [80.97, 9.03], [81.5, 9.25], [82.03, 9.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.726891850027471}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.437853579878285}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.399767379745583, 26.151211883407427, 26.168773297498433, 26.0542749685452, 26.443651698313943, 26.375024806225497]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.399767379745583, 23.977241751178212, 23.554248587404516, 23.736375018493106, 26.122880925813945, 26.08267410103923]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8841560587570143, -1.4637290407406938, -1.4204776518513091, -1.5092205962383576, -1.0439893792763997, -1.3059479974400006]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.8841560587570143, -2.3568911704257403, -2.5487416807123395, -2.726891850027471, -1.412298040952578, -1.349053978685788]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5449097622852714, -2.0026075650176374, -1.8419292167188752, -1.9344103484521176, -1.5318658234851934, -1.5218975084914816]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5449097622852714, -2.631662290027481, -2.4659064001511166, -2.451391754069869, -1.753722483852057, -1.5677851098221849]}}