{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:35.862479", "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-Oct-19_to_2012-Oct-22_78.0_12.5"}, "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": 2012100000754}, "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": "October 19 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 22 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 54572.00137021925}, "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": 12.5}, "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": 77.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 79.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.97, 11.53], [77.5, 11.75], [77.75, 11.65], [77.82, 11.68], [77.85, 11.75], [77.82, 11.82], [77.47, 11.97], [77.25, 12.5], [77.47, 13.03], [77.82, 13.18], [77.97, 13.53], [78.5, 13.75], [78.75, 13.65], [79.0, 13.75], [79.53, 13.53], [79.75, 13.0], [79.54, 12.5], [79.75, 12.0], [79.65, 11.75], [79.75, 11.5], [79.53, 10.97], [79.18, 10.82], [79.15, 10.75], [79.25, 10.5], [79.15, 10.25], [79.25, 10.0], [79.03, 9.47], [78.68, 9.32], [78.53, 8.97], [78.0, 8.75], [77.47, 8.97], [77.25, 9.5], [77.35, 9.75], [77.32, 9.82], [76.97, 9.97], [76.75, 10.5], [76.85, 10.75], [76.75, 11.0], [76.97, 11.53]]]]}, "2012-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.85, 10.75], [76.75, 11.0], [76.96, 11.5], [76.75, 12.0], [76.97, 12.53], [77.32, 12.68], [77.47, 13.03], [77.82, 13.18], [77.97, 13.53], [78.5, 13.75], [78.75, 13.65], [79.0, 13.75], [79.53, 13.53], [79.75, 13.0], [79.54, 12.5], [79.75, 12.0], [79.65, 11.75], [79.75, 11.5], [79.53, 10.97], [79.18, 10.82], [79.15, 10.75], [79.25, 10.5], [79.15, 10.25], [79.25, 10.0], [79.03, 9.47], [78.68, 9.32], [78.53, 8.97], [78.0, 8.75], [77.47, 8.97], [77.32, 9.32], [76.97, 9.47], [76.75, 10.0], [76.85, 10.25], [76.75, 10.5], [76.85, 10.75]]]]}, "2012-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.85, 10.75], [76.75, 11.0], [76.96, 11.5], [76.75, 12.0], [76.97, 12.53], [77.32, 12.68], [77.47, 13.03], [77.82, 13.18], [77.97, 13.53], [78.5, 13.75], [78.75, 13.65], [79.0, 13.75], [79.53, 13.53], [79.75, 13.0], [79.54, 12.5], [79.75, 12.0], [79.65, 11.75], [79.75, 11.5], [79.53, 10.97], [79.18, 10.82], [79.15, 10.75], [79.25, 10.5], [79.15, 10.25], [79.25, 10.0], [79.03, 9.47], [78.68, 9.32], [78.53, 8.97], [78.0, 8.75], [77.47, 8.97], [77.32, 9.32], [76.97, 9.47], [76.75, 10.0], [76.85, 10.25], [76.75, 10.5], [76.85, 10.75]]]]}, "2012-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.85, 10.75], [76.75, 11.0], [76.96, 11.5], [76.75, 12.0], [76.97, 12.53], [77.32, 12.68], [77.47, 13.03], [78.0, 13.25], [78.53, 13.03], [78.68, 12.68], [79.03, 12.53], [79.25, 12.0], [79.03, 11.47], [78.5, 11.25], [78.07, 11.43], [78.18, 11.18], [78.53, 11.03], [78.75, 10.5], [78.65, 10.25], [78.75, 10.0], [78.65, 9.75], [78.75, 9.5], [78.53, 8.97], [78.0, 8.75], [77.47, 8.97], [77.32, 9.32], [76.97, 9.47], [76.75, 10.0], [76.85, 10.25], [76.75, 10.5], [76.85, 10.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.9965230953321793}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.111103219450401}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.17941451485092, 23.830536355101287, 24.404036810932666, 24.13273365574048]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.41160775445809, 21.631702937026887, 22.479349393411326, 22.570085230931568]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3192278054873583, -2.4200826264959434, -1.8151619920615412, -1.7150275960713341]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9965230953321793, -2.85055004127895, -2.2201533615939866, -2.189982828610198]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7589814258511383, -1.8864576099287298, -1.4063013136426337, -1.3480995007950527]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.336432939855361, -2.2595279407131197, -1.6658694511784158, -1.5068149566468771]}}