{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:53.996023", "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": "2018-Jun-07_to_2018-Jun-10_77.0_15.5"}, "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": 2018060000303}, "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": "June 07 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 10 2018"}, "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": 53480.40487294523}, "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": 15.5}, "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": 77.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "77.0\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": 78.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.35, 16.25], [76.25, 16.5], [76.47, 17.03], [77.0, 17.25], [77.25, 17.15], [77.5, 17.25], [77.75, 17.15], [78.0, 17.25], [78.53, 17.03], [78.75, 16.5], [78.53, 15.97], [78.18, 15.82], [78.15, 15.75], [78.25, 15.5], [78.03, 14.97], [77.5, 14.75], [77.25, 14.85], [77.0, 14.75], [76.47, 14.97], [76.25, 15.5], [76.35, 15.75], [76.25, 16.0], [76.35, 16.25]]]]}, "2018-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.46, 16.5], [75.25, 17.0], [75.47, 17.53], [76.0, 17.75], [76.25, 17.65], [76.5, 17.75], [76.75, 17.65], [77.0, 17.75], [77.53, 17.53], [77.68, 17.18], [77.75, 17.15], [78.0, 17.25], [78.53, 17.03], [78.75, 16.5], [78.53, 15.97], [78.18, 15.82], [78.15, 15.75], [78.25, 15.5], [78.15, 15.25], [78.25, 15.0], [78.03, 14.47], [77.5, 14.25], [77.25, 14.35], [77.0, 14.25], [76.75, 14.35], [76.5, 14.25], [75.97, 14.47], [75.82, 14.82], [75.47, 14.97], [75.25, 15.5], [75.35, 15.75], [75.25, 16.0], [75.46, 16.5]]]]}, "2018-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.46, 16.5], [75.25, 17.0], [75.47, 17.53], [76.0, 17.75], [76.25, 17.65], [76.5, 17.75], [76.75, 17.65], [77.0, 17.75], [77.53, 17.53], [77.68, 17.18], [77.75, 17.15], [78.0, 17.25], [78.53, 17.03], [78.75, 16.5], [78.53, 15.97], [78.18, 15.82], [78.15, 15.75], [78.25, 15.5], [78.15, 15.25], [78.25, 15.0], [78.03, 14.47], [77.5, 14.25], [77.25, 14.35], [77.0, 14.25], [76.75, 14.35], [76.5, 14.25], [75.97, 14.47], [75.82, 14.82], [75.47, 14.97], [75.25, 15.5], [75.35, 15.75], [75.25, 16.0], [75.46, 16.5]]]]}, "2018-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.46, 16.5], [75.25, 17.0], [75.47, 17.53], [76.0, 17.75], [76.25, 17.65], [76.5, 17.75], [76.75, 17.65], [77.0, 17.75], [77.53, 17.53], [77.75, 17.0], [77.54, 16.5], [77.68, 16.18], [78.03, 16.03], [78.25, 15.5], [78.15, 15.25], [78.25, 15.0], [78.03, 14.47], [77.5, 14.25], [77.25, 14.35], [77.0, 14.25], [76.75, 14.35], [76.5, 14.25], [75.97, 14.47], [75.82, 14.82], [75.47, 14.97], [75.25, 15.5], [75.35, 15.75], [75.25, 16.0], [75.46, 16.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.868113123350099}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.8758887224405028}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.5762365162754, 26.160973217737933, 26.002642246260677, 26.08573861442983]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.292686447162907, 24.095949011684525, 23.329715959187183, 24.148430727609025]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7422472547815784, -3.1025029931909325, -3.028274052205622, -2.455424255607117]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.962372945313973, -3.868113123350099, -3.627156694643247, -3.1541474827614024]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.391468926755653, -1.6940569100661784, -1.7277186411941923, -1.4741966441548324]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4742830981931456, -2.1657671811654384, -2.377673612020813, -1.617037507976215]}}