{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:18.952534", "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": "2024-Oct-14_to_2024-Oct-16_79.5_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": 2024100000289}, "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 14 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 16 2024"}, "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": 65860.31897737416}, "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"]}, "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": 79.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "79.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 77.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 80.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[76.97, 14.53], [77.32, 14.68], [77.47, 15.03], [77.82, 15.18], [77.97, 15.53], [78.32, 15.68], [78.47, 16.03], [79.0, 16.25], [79.25, 16.15], [79.5, 16.25], [79.75, 16.15], [80.0, 16.25], [80.53, 16.03], [80.75, 15.5], [80.65, 15.25], [80.75, 15.0], [80.65, 14.75], [80.75, 14.5], [80.65, 14.25], [80.75, 14.0], [80.53, 13.47], [80.18, 13.32], [80.03, 12.97], [79.5, 12.75], [79.25, 12.85], [79.0, 12.75], [78.75, 12.85], [78.5, 12.75], [78.25, 12.85], [78.0, 12.75], [77.47, 12.97], [77.32, 13.32], [76.97, 13.47], [76.75, 14.0], [76.97, 14.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.97, 13.47], [76.75, 14.0], [76.97, 14.53], [77.32, 14.68], [77.47, 15.03], [77.82, 15.18], [77.97, 15.53], [78.32, 15.68], [78.47, 16.03], [79.0, 16.25], [79.25, 16.15], [79.5, 16.25], [79.75, 16.15], [80.0, 16.25], [80.53, 16.03], [80.75, 15.5], [80.65, 15.25], [80.75, 15.0], [80.65, 14.75], [80.75, 14.5], [80.65, 14.25], [80.75, 14.0], [80.53, 13.47], [80.18, 13.32], [80.03, 12.97], [79.5, 12.75], [79.25, 12.85], [79.0, 12.75], [78.75, 12.85], [78.5, 12.75], [78.25, 12.85], [78.0, 12.75], [77.47, 12.97], [77.32, 13.32], [76.97, 13.47]]]]}, "2024-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.97, 13.47], [76.75, 14.0], [76.97, 14.53], [77.32, 14.68], [77.47, 15.03], [77.82, 15.18], [77.97, 15.53], [78.32, 15.68], [78.47, 16.03], [79.0, 16.25], [79.25, 16.15], [79.5, 16.25], [79.75, 16.15], [80.0, 16.25], [80.53, 16.03], [80.75, 15.5], [80.65, 15.25], [80.75, 15.0], [80.65, 14.75], [80.75, 14.5], [80.65, 14.25], [80.75, 14.0], [80.53, 13.47], [80.18, 13.32], [80.03, 12.97], [79.5, 12.75], [79.25, 12.85], [79.0, 12.75], [78.75, 12.85], [78.5, 12.75], [78.25, 12.85], [78.0, 12.75], [77.47, 12.97], [77.32, 13.32], [76.97, 13.47]]]]}, "2024-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.97, 13.47], [76.75, 14.0], [76.97, 14.53], [77.32, 14.68], [77.47, 15.03], [77.82, 15.18], [77.97, 15.53], [78.32, 15.68], [78.47, 16.03], [79.0, 16.25], [79.25, 16.15], [79.5, 16.25], [79.75, 16.15], [80.0, 16.25], [80.53, 16.03], [80.75, 15.5], [80.65, 15.25], [80.75, 15.0], [80.65, 14.75], [80.75, 14.5], [80.65, 14.25], [80.75, 14.0], [80.53, 13.47], [80.18, 13.32], [80.03, 12.97], [79.5, 12.75], [79.25, 12.85], [79.0, 12.75], [78.75, 12.85], [78.5, 12.75], [78.25, 12.85], [78.0, 12.75], [77.47, 12.97], [77.32, 13.32], [76.97, 13.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.54807134942763}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.5626118786368504}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.79456990559902, 24.657493614428006, 24.424787024295767]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.408461507161462, 22.03598556518557, 21.49688618977865]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.495074594380389, -2.5363324380977534, -2.656428603432408]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.447249868685617, -3.4075002369585263, -3.54807134942763]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7390892899402524, -1.7750242484242356, -1.8759754188093074]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.254480974908996, -2.0480502346089873, -2.367449760411545]}}