{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:32:22.290820", "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": "2022-Sep-28_to_2022-Sep-30_103.5_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": 2022090000959}, "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": "September 28 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 30 2022"}, "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": 53360.99503361601}, "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": ["Thailand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": 103.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "103.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 101.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 104.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.97, 17.03], [101.32, 17.18], [101.35, 17.25], [101.25, 17.5], [101.47, 18.03], [102.0, 18.25], [102.53, 18.03], [102.68, 17.68], [102.75, 17.65], [103.0, 17.75], [103.25, 17.65], [103.5, 17.75], [103.75, 17.65], [104.0, 17.75], [104.53, 17.53], [104.75, 17.0], [104.65, 16.75], [104.75, 16.5], [104.65, 16.25], [104.75, 16.0], [104.53, 15.47], [104.18, 15.32], [104.03, 14.97], [103.5, 14.75], [103.25, 14.85], [103.0, 14.75], [102.47, 14.97], [102.32, 15.32], [102.0, 15.46], [101.5, 15.25], [100.97, 15.47], [100.75, 16.0], [100.85, 16.25], [100.75, 16.5], [100.97, 17.03]]]]}, "2022-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.97, 17.03], [101.32, 17.18], [101.35, 17.25], [101.25, 17.5], [101.47, 18.03], [102.0, 18.25], [102.53, 18.03], [102.68, 17.68], [102.75, 17.65], [103.0, 17.75], [103.25, 17.65], [103.5, 17.75], [103.75, 17.65], [104.0, 17.75], [104.53, 17.53], [104.75, 17.0], [104.65, 16.75], [104.75, 16.5], [104.65, 16.25], [104.75, 16.0], [104.53, 15.47], [104.18, 15.32], [104.03, 14.97], [103.5, 14.75], [103.25, 14.85], [103.0, 14.75], [102.47, 14.97], [102.32, 15.32], [102.0, 15.46], [101.5, 15.25], [100.97, 15.47], [100.75, 16.0], [100.85, 16.25], [100.75, 16.5], [100.97, 17.03]]]]}, "2022-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.97, 17.03], [101.32, 17.18], [101.35, 17.25], [101.25, 17.5], [101.47, 18.03], [102.0, 18.25], [102.53, 18.03], [102.68, 17.68], [102.75, 17.65], [103.0, 17.75], [103.25, 17.65], [103.5, 17.75], [103.75, 17.65], [104.0, 17.75], [104.53, 17.53], [104.75, 17.0], [104.65, 16.75], [104.75, 16.5], [104.65, 16.25], [104.75, 16.0], [104.53, 15.47], [104.18, 15.32], [104.03, 14.97], [103.5, 14.75], [103.25, 14.85], [103.0, 14.75], [102.47, 14.97], [102.32, 15.32], [102.0, 15.46], [101.5, 15.25], [100.97, 15.47], [100.75, 16.0], [100.85, 16.25], [100.75, 16.5], [100.97, 17.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.1198728365695274}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8786550547394214}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.827411236661078, 25.303254205320343, 25.54196045993706]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.912744113382644, 23.00762420196844, 23.116793460522047]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.287005660170438, -1.7974826028160937, -1.5514769012317327]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.1198728365695274, -2.565712621227533, -1.9855901978012866]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.3602818247407544, -1.8900109083921879, -1.6046448532668347]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.3014268185849827, -2.732033329956076, -1.9749222610877142]}}