{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:22.394193", "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-Mar-21_to_2018-Mar-23_102.5_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": 2018030000871}, "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": "March 21 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 23 2018"}, "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": 50457.138402740704}, "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": 102.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "102.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 100.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 103.75}, "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": {"2018-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.47, 17.53], [101.0, 17.75], [101.25, 17.65], [101.5, 17.75], [102.03, 17.53], [102.18, 17.18], [102.25, 17.15], [102.32, 17.18], [102.47, 17.53], [103.0, 17.75], [103.25, 17.65], [103.5, 17.75], [104.03, 17.53], [104.25, 17.0], [104.03, 16.47], [103.68, 16.32], [103.65, 16.25], [103.75, 16.0], [103.53, 15.47], [103.18, 15.32], [103.15, 15.25], [103.25, 15.0], [103.03, 14.47], [102.5, 14.25], [102.25, 14.35], [102.0, 14.25], [101.47, 14.47], [101.32, 14.82], [100.97, 14.97], [100.75, 15.5], [100.85, 15.75], [100.82, 15.82], [100.47, 15.97], [100.25, 16.5], [100.35, 16.75], [100.25, 17.0], [100.47, 17.53]]]]}, "2018-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.47, 17.53], [101.0, 17.75], [101.25, 17.65], [101.5, 17.75], [102.03, 17.53], [102.18, 17.18], [102.25, 17.15], [102.32, 17.18], [102.47, 17.53], [103.0, 17.75], [103.25, 17.65], [103.5, 17.75], [104.03, 17.53], [104.25, 17.0], [104.03, 16.47], [103.68, 16.32], [103.65, 16.25], [103.75, 16.0], [103.53, 15.47], [103.18, 15.32], [103.15, 15.25], [103.25, 15.0], [103.03, 14.47], [102.5, 14.25], [102.25, 14.35], [102.0, 14.25], [101.47, 14.47], [101.32, 14.82], [100.97, 14.97], [100.75, 15.5], [100.85, 15.75], [100.82, 15.82], [100.47, 15.97], [100.25, 16.5], [100.35, 16.75], [100.25, 17.0], [100.47, 17.53]]]]}, "2018-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.47, 17.53], [101.0, 17.75], [101.25, 17.65], [101.5, 17.75], [102.03, 17.53], [102.18, 17.18], [102.25, 17.15], [102.32, 17.18], [102.47, 17.53], [103.0, 17.75], [103.25, 17.65], [103.5, 17.75], [104.03, 17.53], [104.25, 17.0], [104.03, 16.47], [103.68, 16.32], [103.65, 16.25], [103.75, 16.0], [103.53, 15.47], [103.18, 15.32], [103.15, 15.25], [103.25, 15.0], [103.03, 14.47], [102.5, 14.25], [102.25, 14.35], [102.0, 14.25], [101.47, 14.47], [101.32, 14.82], [100.97, 14.97], [100.75, 15.5], [100.85, 15.75], [100.82, 15.82], [100.47, 15.97], [100.25, 16.5], [100.35, 16.75], [100.25, 17.0], [100.47, 17.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.657167316684081}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5005846106021115}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.969582186498997, 24.533397081459213, 24.86159483956783]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.57440888649228, 22.356768650593665, 22.634904046895713]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.064137760115022, -3.4474020416227016, -2.9902140300686106]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.657167316684081, -4.490156274069136, -3.9703300892903712]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9726927655886315, -1.749653256247154, -1.4552525184887628]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4159066223849908, -1.9301681768532875, -1.672605879012737]}}