{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:46.715397", "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": "2016-Jul-15_to_2016-Jul-17_78.0_26.5"}, "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": 2016070000556}, "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": "July 15 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 17 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 52749.12278290924}, "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": ["India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "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": []}, "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": 26.5}, "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": 78.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "78.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 76.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 79.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.97, 27.03], [76.5, 27.25], [76.75, 27.15], [76.82, 27.18], [76.97, 27.53], [77.5, 27.75], [77.75, 27.65], [78.0, 27.75], [78.53, 27.53], [78.68, 27.18], [79.03, 27.03], [79.18, 26.68], [79.53, 26.53], [79.68, 26.18], [80.03, 26.03], [80.25, 25.5], [80.03, 24.97], [79.5, 24.75], [79.25, 24.85], [79.0, 24.75], [78.75, 24.85], [78.5, 24.75], [78.25, 24.85], [78.0, 24.75], [77.75, 24.85], [77.5, 24.75], [77.25, 24.85], [77.0, 24.75], [76.47, 24.97], [76.32, 25.32], [75.97, 25.47], [75.75, 26.0], [75.85, 26.25], [75.75, 26.5], [75.97, 27.03]]]]}, "2016-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.97, 27.03], [76.5, 27.25], [76.75, 27.15], [76.82, 27.18], [76.97, 27.53], [77.5, 27.75], [77.75, 27.65], [78.0, 27.75], [78.53, 27.53], [78.68, 27.18], [79.03, 27.03], [79.18, 26.68], [79.53, 26.53], [79.68, 26.18], [80.03, 26.03], [80.25, 25.5], [80.03, 24.97], [79.5, 24.75], [79.25, 24.85], [79.0, 24.75], [78.75, 24.85], [78.5, 24.75], [78.25, 24.85], [78.0, 24.75], [77.75, 24.85], [77.5, 24.75], [77.25, 24.85], [77.0, 24.75], [76.47, 24.97], [76.32, 25.32], [75.97, 25.47], [75.75, 26.0], [75.85, 26.25], [75.75, 26.5], [75.97, 27.03]]]]}, "2016-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.97, 27.03], [76.5, 27.25], [76.75, 27.15], [76.82, 27.18], [76.97, 27.53], [77.5, 27.75], [77.75, 27.65], [78.0, 27.75], [78.53, 27.53], [78.68, 27.18], [79.03, 27.03], [79.18, 26.68], [79.53, 26.53], [79.68, 26.18], [80.03, 26.03], [80.25, 25.5], [80.03, 24.97], [79.5, 24.75], [79.25, 24.85], [79.0, 24.75], [78.75, 24.85], [78.5, 24.75], [78.25, 24.85], [78.0, 24.75], [77.75, 24.85], [77.5, 24.75], [77.25, 24.85], [77.0, 24.75], [76.47, 24.97], [76.32, 25.32], [75.97, 25.47], [75.75, 26.0], [75.85, 26.25], [75.75, 26.5], [75.97, 27.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.6356049482237154}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.025224459191226}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.089014927626522, 26.415421238416855, 26.653379371874678]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.624845743725814, 24.902687070495404, 25.669295430215072]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7799535459582008, -3.3252913749900945, -2.9704284566253825]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.117468148147964, -3.626062024500243, -3.6356049482237154]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.421578894098482, -1.766403883834161, -1.6415461261762936]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5683009779474482, -1.8968050780987449, -1.9863051987111056]}}