{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:09.307076", "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": "2015-Nov-15_to_2015-Nov-19_78.5_14.5"}, "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": 2015110000492}, "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": "November 15 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 19 2015"}, "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": 57029.44223703185}, "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": 14.5}, "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": 78.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "78.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 75.75}, "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": 12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-11-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.5, 14.75], [76.75, 14.65], [77.0, 14.75], [77.25, 14.65], 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[77.82, 12.82], [77.75, 12.85], [77.5, 12.75], [77.25, 12.85], [77.0, 12.75], [76.75, 12.85], [76.5, 12.75], [76.25, 12.85], [76.0, 12.75], [75.47, 12.97], [75.25, 13.5], [75.47, 14.03], [75.82, 14.18], [75.97, 14.53], [76.5, 14.75]]]]}, "2015-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.5, 14.75], [76.75, 14.65], [77.0, 14.75], [77.25, 14.65], [77.32, 14.68], [77.47, 15.03], [78.0, 15.25], [78.25, 15.15], [78.5, 15.25], [78.75, 15.15], [79.0, 15.25], [79.25, 15.15], [79.5, 15.25], [80.03, 15.03], [80.25, 14.5], [80.03, 13.97], [79.68, 13.82], [79.65, 13.75], [79.75, 13.5], [79.65, 13.25], [79.75, 13.0], [79.53, 12.47], [79.0, 12.25], [78.75, 12.35], [78.5, 12.25], [77.97, 12.47], [77.82, 12.82], [77.75, 12.85], [77.5, 12.75], [77.25, 12.85], [77.0, 12.75], [76.75, 12.85], [76.5, 12.75], [76.25, 12.85], [76.0, 12.75], [75.47, 12.97], [75.25, 13.5], [75.47, 14.03], [75.82, 14.18], [75.97, 14.53], [76.5, 14.75]]]]}, "2015-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.0, 15.25], [78.25, 15.15], [78.5, 15.25], [78.75, 15.15], [79.0, 15.25], [79.25, 15.15], [79.5, 15.25], [80.03, 15.03], [80.25, 14.5], [80.03, 13.97], [79.68, 13.82], [79.53, 13.47], [79.0, 13.25], [78.75, 13.35], [78.5, 13.25], [78.25, 13.35], [78.0, 13.25], [77.75, 13.35], [77.5, 13.25], [76.97, 13.47], [76.75, 14.0], [76.97, 14.53], [77.32, 14.68], [77.47, 15.03], [78.0, 15.25]]]]}, "2015-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.0, 15.25], [78.25, 15.15], [78.5, 15.25], [79.03, 15.03], [79.25, 14.5], [79.03, 13.97], [78.5, 13.75], [78.25, 13.85], [78.18, 13.82], [78.03, 13.47], [77.5, 13.25], [76.97, 13.47], [76.75, 14.0], [76.97, 14.53], [77.32, 14.68], [77.47, 15.03], [78.0, 15.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.4025948769369165}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.718559882327765}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.14155289362975, 19.97770908656696, 20.763635762113097, 22.53112229269857, 22.939178483747753]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.62640706436713, 18.49020415890476, 19.358385226736516, 21.012418688604157, 21.927711919971102]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.1331292074941537, -3.5823132953547776, -2.771484727316575, -1.9952638689044662, -1.9640172164689413]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.3943729855887455, -4.4025948769369165, -3.7686260999274737, -2.2890249681501587, -2.1880434032748326]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6093692475047907, -2.595097901286022, -2.0087329100821814, -1.4232195518567778, -1.3414109757000947]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.909961529593067, -3.0930568645729357, -2.7564964217383356, -1.5495584849074489, -1.4074220812872391]}}