{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:14.509707", "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": "2013-Dec-01_to_2013-Dec-04_99.5_14.0"}, "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": 2013120000076}, "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": "December 01 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 04 2013"}, "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": 53912.49411675157}, "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": ["Cambodia", "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": 14.0}, "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": 99.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "99.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 99.25}, "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": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.97, 13.47], [101.75, 14.0], [101.97, 14.53], [102.5, 14.75], [102.75, 14.65], [102.82, 14.68], [102.97, 15.03], [103.5, 15.25], [104.03, 15.03], [104.25, 14.5], [104.15, 14.25], [104.25, 14.0], [104.03, 13.47], [103.5, 13.25], [103.25, 13.35], [103.0, 13.25], [102.75, 13.35], [102.5, 13.25], [101.97, 13.47]]]]}, "2013-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.85, 14.25], [98.75, 14.5], [98.85, 14.75], [98.75, 15.0], [98.97, 15.53], [99.5, 15.75], [100.03, 15.53], [100.18, 15.18], [100.25, 15.15], [100.5, 15.25], [100.75, 15.15], [100.82, 15.18], [100.97, 15.53], [101.5, 15.75], [101.75, 15.65], [102.0, 15.75], [102.53, 15.53], [102.68, 15.18], [103.0, 15.04], [103.5, 15.25], [104.03, 15.03], [104.25, 14.5], [104.15, 14.25], [104.25, 14.0], [104.03, 13.47], [103.5, 13.25], [103.25, 13.35], [103.0, 13.25], [102.75, 13.35], [102.5, 13.25], [102.0, 13.46], [101.5, 13.25], [100.97, 13.47], [100.82, 13.82], [100.75, 13.85], [100.68, 13.82], [100.65, 13.75], [100.75, 13.5], [100.53, 12.97], [100.0, 12.75], [99.75, 12.85], [99.5, 12.75], [98.97, 12.97], [98.75, 13.5], [98.85, 13.75], [98.75, 14.0], [98.85, 14.25]]]]}, "2013-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.85, 14.25], [98.75, 14.5], [98.85, 14.75], [98.75, 15.0], [98.97, 15.53], [99.5, 15.75], [100.03, 15.53], [100.18, 15.18], [100.25, 15.15], [100.5, 15.25], [100.75, 15.15], [100.82, 15.18], [100.97, 15.53], [101.5, 15.75], [101.75, 15.65], [102.0, 15.75], [102.53, 15.53], [102.68, 15.18], [103.0, 15.04], [103.5, 15.25], [104.03, 15.03], [104.25, 14.5], [104.15, 14.25], [104.25, 14.0], [104.03, 13.47], [103.5, 13.25], [103.25, 13.35], [103.0, 13.25], [102.75, 13.35], [102.5, 13.25], [102.0, 13.46], [101.5, 13.25], [100.97, 13.47], [100.82, 13.82], [100.75, 13.85], [100.68, 13.82], [100.65, 13.75], [100.75, 13.5], [100.53, 12.97], [100.0, 12.75], [99.75, 12.85], [99.5, 12.75], [98.97, 12.97], [98.75, 13.5], [98.85, 13.75], [98.75, 14.0], [98.85, 14.25]]]]}, "2013-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.85, 14.25], [98.75, 14.5], [98.85, 14.75], [98.75, 15.0], [98.97, 15.53], [99.5, 15.75], [100.03, 15.53], [100.18, 15.18], [100.25, 15.15], [100.5, 15.25], [100.75, 15.15], [100.82, 15.18], [100.97, 15.53], [101.5, 15.75], [101.75, 15.65], [102.0, 15.75], [102.53, 15.53], [102.68, 15.18], [103.03, 15.03], [103.25, 14.5], [103.03, 13.97], [102.5, 13.75], [102.25, 13.85], [102.18, 13.82], [102.03, 13.47], [101.5, 13.25], [100.97, 13.47], [100.82, 13.82], [100.75, 13.85], [100.68, 13.82], [100.65, 13.75], [100.75, 13.5], [100.53, 12.97], [100.0, 12.75], [99.75, 12.85], [99.5, 12.75], [98.97, 12.97], [98.75, 13.5], [98.85, 13.75], [98.75, 14.0], [98.85, 14.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.113128370837785}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.814168112012254}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.068887130434632, 21.709737827794868, 21.644912536694733, 22.62774292422523]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.387698586367208, 18.714061740458078, 18.772355977833342, 20.08083839367805]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.9582782801754206, -4.216998485740955, -4.18326225986773, -3.0662336790716926]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.008901250792178, -5.113128370837785, -4.827594651317099, -3.801389171774872]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5680758920953104, -2.1884099307077, -2.160958401986259, -1.5533710808703163]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6316607961741778, -2.3864708034169015, -2.492710038886134, -1.9070380817104813]}}