{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:43.550263", "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": "2011-Jun-24_to_2011-Jun-28_98.5_20.5"}, "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": 2011060001250}, "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 24 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 275305.26467604935}, "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": ["Laos", "Myanmar", "Thailand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "S.Asia", "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": 20.5}, "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": 98.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "98.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 96.75}, "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": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.0, 20.75], [100.25, 20.65], [100.5, 20.75], [101.03, 20.53], [101.25, 20.0], [101.03, 19.47], [100.68, 19.32], [100.57, 19.07], [101.0, 19.25], [101.53, 19.03], [101.75, 18.5], [101.65, 18.25], [101.75, 18.0], [101.53, 17.47], [101.0, 17.25], [100.47, 17.47], [100.25, 18.0], [100.35, 18.25], [100.25, 18.5], [100.43, 18.93], [100.0, 18.75], [99.47, 18.97], [99.25, 19.5], [99.35, 19.75], [99.25, 20.0], [99.47, 20.53], [100.0, 20.75]]], [[[104.75, 20.0], [104.65, 19.75], [104.75, 19.5], [104.53, 18.97], [104.0, 18.75], [103.5, 18.96], [103.0, 18.75], [102.47, 18.97], [102.25, 19.5], [102.47, 20.03], [103.0, 20.25], [103.3, 20.13], [103.47, 20.53], [104.0, 20.75], [104.53, 20.53], [104.75, 20.0]]], [[[99.03, 21.53], [99.25, 21.0], [99.15, 20.75], [99.25, 20.5], [99.03, 19.97], [98.5, 19.75], [97.97, 19.97], [97.75, 20.5], [97.85, 20.75], [97.75, 21.0], [97.97, 21.53], [98.5, 21.75], [99.03, 21.53]]]]}, "2011-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.25, 19.0], [96.47, 19.53], [97.0, 19.75], [97.25, 19.65], [97.32, 19.68], [97.35, 19.75], [97.25, 20.0], [97.35, 20.25], [97.25, 20.5], [97.35, 20.75], [97.25, 21.0], [97.47, 21.53], [98.0, 21.75], [98.25, 21.65], [98.5, 21.75], [99.03, 21.53], [99.18, 21.18], [99.25, 21.15], [99.5, 21.25], [100.03, 21.03], [100.18, 20.68], [100.25, 20.65], [100.5, 20.75], [100.75, 20.65], [100.82, 20.68], [100.97, 21.03], [101.5, 21.25], [101.75, 21.15], [102.0, 21.25], [102.25, 21.15], [102.5, 21.25], [103.0, 21.04], [103.5, 21.25], [104.03, 21.03], [104.18, 20.68], [104.53, 20.53], [104.75, 20.0], [104.65, 19.75], [104.75, 19.5], [104.53, 18.97], [104.0, 18.75], [103.5, 18.96], [103.0, 18.75], [102.75, 18.85], [102.68, 18.82], [102.65, 18.75], [102.75, 18.5], [102.65, 18.25], [102.75, 18.0], [102.65, 17.75], [102.75, 17.5], [102.65, 17.25], [102.75, 17.0], [102.65, 16.75], [102.75, 16.5], [102.53, 15.97], [102.0, 15.75], [101.75, 15.85], [101.68, 15.82], [101.53, 15.47], [101.0, 15.25], [100.75, 15.35], [100.68, 15.32], [100.53, 14.97], [100.0, 14.75], [99.75, 14.85], [99.5, 14.75], [98.97, 14.97], [98.75, 15.5], [98.85, 15.75], [98.75, 16.0], [98.85, 16.25], [98.82, 16.32], [98.75, 16.35], [98.5, 16.25], [97.97, 16.47], [97.75, 17.0], [97.85, 17.25], [97.82, 17.32], [97.47, 17.47], [97.32, 17.82], [96.97, 17.97], [96.82, 18.32], [96.47, 18.47], [96.25, 19.0]]]]}, "2011-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.25, 19.0], [96.47, 19.53], [97.0, 19.75], [97.25, 19.65], [97.32, 19.68], [97.35, 19.75], [97.25, 20.0], [97.35, 20.25], [97.25, 20.5], [97.35, 20.75], [97.25, 21.0], [97.47, 21.53], [98.0, 21.75], [98.25, 21.65], [98.32, 21.68], [98.47, 22.03], [99.0, 22.25], [99.53, 22.03], [99.75, 21.5], [99.63, 21.2], [100.03, 21.03], [100.18, 20.68], [100.25, 20.65], [100.5, 20.75], [100.75, 20.65], [100.82, 20.68], [100.97, 21.03], [101.5, 21.25], [101.75, 21.15], [102.0, 21.25], [102.25, 21.15], [102.5, 21.25], [102.75, 21.15], [103.0, 21.25], [103.25, 21.15], [103.5, 21.25], [104.03, 21.03], [104.18, 20.68], [104.53, 20.53], [104.75, 20.0], [104.65, 19.75], [104.75, 19.5], [104.53, 18.97], [104.0, 18.75], [103.5, 18.96], [103.0, 18.75], [102.75, 18.85], [102.68, 18.82], [102.65, 18.75], [102.75, 18.5], [102.65, 18.25], [102.75, 18.0], [102.65, 17.75], [102.75, 17.5], [102.65, 17.25], [102.75, 17.0], [102.65, 16.75], [102.75, 16.5], [102.53, 15.97], [102.0, 15.75], [101.75, 15.85], [101.68, 15.82], [101.53, 15.47], [101.0, 15.25], [100.75, 15.35], [100.68, 15.32], [100.53, 14.97], [100.0, 14.75], [99.75, 14.85], [99.5, 14.75], [98.97, 14.97], [98.75, 15.5], [98.85, 15.75], [98.75, 16.0], [98.85, 16.25], [98.82, 16.32], [98.75, 16.35], [98.5, 16.25], [97.97, 16.47], [97.75, 17.0], [97.85, 17.25], [97.82, 17.32], [97.47, 17.47], [97.32, 17.82], [96.97, 17.97], [96.82, 18.32], [96.47, 18.47], [96.25, 19.0]]]]}, "2011-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.25, 19.0], [96.47, 19.53], [97.0, 19.75], [97.25, 19.65], [97.32, 19.68], [97.35, 19.75], [97.25, 20.0], [97.35, 20.25], [97.25, 20.5], [97.35, 20.75], [97.25, 21.0], [97.47, 21.53], [98.0, 21.75], [98.25, 21.65], [98.32, 21.68], [98.47, 22.03], [99.0, 22.25], [99.53, 22.03], [99.75, 21.5], [99.63, 21.2], [100.03, 21.03], [100.18, 20.68], [100.25, 20.65], [100.5, 20.75], [100.75, 20.65], [100.82, 20.68], [100.97, 21.03], [101.5, 21.25], [101.75, 21.15], [102.0, 21.25], [102.25, 21.15], [102.5, 21.25], [102.75, 21.15], [103.0, 21.25], [103.25, 21.15], [103.5, 21.25], [104.03, 21.03], [104.25, 20.5], [104.03, 19.97], [103.68, 19.82], [103.65, 19.75], [103.75, 19.5], [103.53, 18.97], [103.0, 18.75], [102.75, 18.85], [102.68, 18.82], [102.65, 18.75], [102.75, 18.5], [102.65, 18.25], [102.75, 18.0], [102.65, 17.75], [102.75, 17.5], [102.65, 17.25], [102.75, 17.0], [102.65, 16.75], [102.75, 16.5], [102.53, 15.97], [102.0, 15.75], [101.75, 15.85], [101.68, 15.82], [101.53, 15.47], [101.0, 15.25], [100.75, 15.35], [100.68, 15.32], [100.53, 14.97], [100.0, 14.75], [99.75, 14.85], [99.5, 14.75], [98.97, 14.97], [98.75, 15.5], [98.85, 15.75], [98.75, 16.0], [98.85, 16.25], [98.82, 16.32], [98.75, 16.35], [98.5, 16.25], [97.97, 16.47], [97.75, 17.0], [97.85, 17.25], [97.82, 17.32], [97.47, 17.47], [97.32, 17.82], [96.97, 17.97], [96.82, 18.32], [96.47, 18.47], [96.25, 19.0]]]]}, "2011-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.5, 21.25], [102.75, 21.15], [103.0, 21.25], [103.53, 21.03], [103.75, 20.5], [103.65, 20.25], [103.75, 20.0], [103.53, 19.47], [103.0, 19.25], [102.75, 19.35], [102.5, 19.25], [101.97, 19.47], [101.75, 20.0], [101.85, 20.25], [101.75, 20.5], [101.97, 21.03], [102.5, 21.25]]], [[[99.53, 22.03], [99.75, 21.5], [99.53, 20.97], [99.0, 20.75], [98.7, 20.88], [98.53, 20.47], [98.0, 20.25], [97.47, 20.47], [97.25, 21.0], [97.47, 21.53], [98.0, 21.75], [98.3, 21.63], [98.47, 22.03], [99.0, 22.25], [99.53, 22.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.9774244240730354}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.3301269845444015}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.452961110027445, 24.04524546155318, 23.788036115931845, 24.33470205013947, 23.241495344641066]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.422528591445882, 20.658270878357428, 20.392529931285992, 21.35231610041359, 22.373103915950026]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8021256858257915, -2.454749502488593, -2.585062930318319, -2.029335606883342, -1.91738851427606]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.172639521774329, -3.9774244240730354, -3.6379943130382912, -3.2500855637464383, -2.388837784513271]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4307290009069478, -2.1110137729529406, -2.275898384500199, -1.8314899741462114, -1.5051135412036842]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8709722658591175, -3.1027996246974294, -2.9156650364784213, -2.8942423746815216, -1.5941304708300064]}}