{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:02.679353", "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": "2010-Nov-09_to_2010-Nov-11_99.5_22.0"}, "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": 2010110000451}, "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": "November 09 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 11 2010"}, "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": 80627.23634483098}, "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": ["China", "Laos", "Myanmar", "Thailand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "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": 22.0}, "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": 97.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 101.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.32, 21.18], [98.35, 21.25], [98.32, 21.32], [97.97, 21.47], [97.82, 21.82], [97.47, 21.97], [97.25, 22.5], [97.47, 23.03], [98.0, 23.25], [98.5, 23.04], [99.0, 23.25], [99.25, 23.15], [99.5, 23.25], [99.75, 23.15], [100.0, 23.25], [100.5, 23.04], [101.0, 23.25], [101.53, 23.03], [101.75, 22.5], [101.54, 22.0], [101.75, 21.5], [101.53, 20.97], [101.18, 20.82], [101.15, 20.75], [101.25, 20.5], [101.03, 19.97], [100.5, 19.75], [100.25, 19.85], [100.18, 19.82], [100.03, 19.47], [99.5, 19.25], [99.25, 19.35], [99.0, 19.25], [98.75, 19.35], [98.5, 19.25], [98.25, 19.35], [98.0, 19.25], [97.47, 19.47], [97.25, 20.0], [97.47, 20.53], [97.82, 20.68], [97.97, 21.03], [98.32, 21.18]]]]}, "2010-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.32, 21.18], [98.35, 21.25], [98.32, 21.32], [97.97, 21.47], [97.82, 21.82], [97.47, 21.97], [97.25, 22.5], [97.47, 23.03], [98.0, 23.25], [98.5, 23.04], [99.0, 23.25], [99.25, 23.15], [99.5, 23.25], [99.75, 23.15], [100.0, 23.25], [100.5, 23.04], [101.0, 23.25], [101.53, 23.03], [101.75, 22.5], [101.54, 22.0], [101.75, 21.5], [101.53, 20.97], [101.18, 20.82], [101.15, 20.75], [101.25, 20.5], [101.03, 19.97], [100.5, 19.75], [100.25, 19.85], [100.18, 19.82], [100.03, 19.47], [99.5, 19.25], [99.25, 19.35], [99.0, 19.25], [98.75, 19.35], [98.5, 19.25], [98.25, 19.35], [98.0, 19.25], [97.47, 19.47], [97.25, 20.0], [97.47, 20.53], [97.82, 20.68], [97.97, 21.03], [98.32, 21.18]]]]}, "2010-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.32, 21.18], [98.35, 21.25], [98.32, 21.32], [97.97, 21.47], [97.82, 21.82], [97.47, 21.97], [97.25, 22.5], [97.47, 23.03], [98.0, 23.25], [98.5, 23.04], [99.0, 23.25], [99.25, 23.15], [99.5, 23.25], [99.75, 23.15], [100.0, 23.25], [100.5, 23.04], [101.0, 23.25], [101.53, 23.03], [101.75, 22.5], [101.54, 22.0], [101.75, 21.5], [101.53, 20.97], [101.18, 20.82], [101.15, 20.75], [101.25, 20.5], [101.03, 19.97], [100.5, 19.75], [100.25, 19.85], [100.18, 19.82], [100.03, 19.47], [99.5, 19.25], [99.25, 19.35], [99.0, 19.25], [98.75, 19.35], [98.5, 19.25], [98.25, 19.35], [98.0, 19.25], [97.47, 19.47], [97.25, 20.0], [97.47, 20.53], [97.82, 20.68], [97.97, 21.03], [98.32, 21.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.7171124552284596}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.8087239093891148}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.49903693650458, 16.791911495857676, 17.397145940692155]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.680717919578058, 14.648891838617146, 15.103681923073566]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.589501334455593, -3.262091019876276, -2.5745793738354763]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.3370579150907815, -3.7171124552284596, -2.9890270433481874]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5885232903157878, -1.9538155059135536, -1.4990691917122396]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9952814194377093, -2.269430120880667, -1.6985525318148187]}}