{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:30.646596", "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-Jan-05_to_2011-Jan-08_100.0_6.5"}, "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": 2011010000397}, "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": "January 05 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 08 2011"}, "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": 104612.41101887562}, "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": ["Malaysia", "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": ["Gulf of Thailand", "Malacca Strait"]}, "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": 6.5}, "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": 100.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "100.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 98.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 103.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.25, 7.5], [98.47, 8.03], [99.0, 8.25], [99.25, 8.15], [99.5, 8.25], [100.03, 8.03], [100.18, 7.68], [100.25, 7.65], [100.5, 7.75], [100.75, 7.65], [101.0, 7.75], [101.53, 7.53], [101.68, 7.18], [102.03, 7.03], [102.25, 6.5], [102.03, 5.97], [101.68, 5.82], [101.53, 5.47], [101.0, 5.25], [100.75, 5.35], [100.5, 5.25], [99.97, 5.47], [99.82, 5.82], [99.75, 5.85], [99.5, 5.75], [98.97, 5.97], [98.75, 6.5], [98.85, 6.75], [98.82, 6.82], [98.47, 6.97], [98.25, 7.5]]]]}, "2011-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.25, 7.5], [98.47, 8.03], [99.0, 8.25], [99.25, 8.15], [99.5, 8.25], [100.03, 8.03], [100.18, 7.68], [100.25, 7.65], [100.5, 7.75], [100.75, 7.65], [101.0, 7.75], [101.53, 7.53], [101.68, 7.18], [102.03, 7.03], [102.25, 6.5], [102.04, 6.0], [102.18, 5.68], [102.25, 5.65], [102.5, 5.75], [103.03, 5.53], [103.18, 5.18], [103.53, 5.03], [103.75, 4.5], [103.65, 4.25], [103.75, 4.0], [103.65, 3.75], [103.75, 3.5], [103.65, 3.25], [103.75, 3.0], [103.53, 2.47], [103.0, 2.25], [102.47, 2.47], [102.32, 2.82], [102.25, 2.85], [102.0, 2.75], [101.47, 2.97], [101.32, 3.32], [100.97, 3.47], [100.82, 3.82], [100.47, 3.97], [100.25, 4.5], [100.35, 4.75], [100.32, 4.82], [99.97, 4.97], [99.82, 5.32], [99.47, 5.47], [99.32, 5.82], [98.97, 5.97], [98.75, 6.5], [98.85, 6.75], [98.82, 6.82], [98.47, 6.97], [98.25, 7.5]]]]}, "2011-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.25, 7.5], [98.47, 8.03], [99.0, 8.25], [99.25, 8.15], [99.5, 8.25], [100.03, 8.03], [100.18, 7.68], [100.25, 7.65], [100.5, 7.75], [100.75, 7.65], [101.0, 7.75], [101.53, 7.53], [101.68, 7.18], [102.03, 7.03], [102.25, 6.5], [102.04, 6.0], [102.18, 5.68], [102.25, 5.65], [102.5, 5.75], [103.03, 5.53], [103.18, 5.18], [103.53, 5.03], [103.75, 4.5], [103.65, 4.25], [103.75, 4.0], [103.65, 3.75], [103.75, 3.5], [103.65, 3.25], [103.75, 3.0], [103.53, 2.47], [103.0, 2.25], [102.47, 2.47], [102.32, 2.82], [102.25, 2.85], [102.0, 2.75], [101.47, 2.97], [101.32, 3.32], [100.97, 3.47], [100.82, 3.82], [100.47, 3.97], [100.25, 4.5], [100.35, 4.75], [100.32, 4.82], [99.97, 4.97], [99.82, 5.32], [99.47, 5.47], [99.32, 5.82], [98.97, 5.97], [98.75, 6.5], [98.85, 6.75], [98.82, 6.82], [98.47, 6.97], [98.25, 7.5]]]]}, "2011-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.97, 7.53], [99.5, 7.75], [99.75, 7.65], [100.0, 7.75], [100.25, 7.65], [100.5, 7.75], [100.75, 7.65], [101.0, 7.75], [101.53, 7.53], [101.75, 7.0], [101.65, 6.75], [101.75, 6.5], [101.65, 6.25], [101.68, 6.18], [102.03, 6.03], [102.18, 5.68], [102.25, 5.65], [102.5, 5.75], [103.03, 5.53], [103.18, 5.18], [103.53, 5.03], [103.75, 4.5], [103.65, 4.25], [103.75, 4.0], [103.65, 3.75], [103.75, 3.5], [103.65, 3.25], [103.75, 3.0], [103.53, 2.47], [103.0, 2.25], [102.47, 2.47], [102.32, 2.82], [102.25, 2.85], [102.0, 2.75], [101.47, 2.97], [101.32, 3.32], [100.97, 3.47], [100.82, 3.82], [100.47, 3.97], [100.25, 4.5], [100.35, 4.75], [100.32, 4.82], [99.97, 4.97], [99.82, 5.32], [99.47, 5.47], [99.32, 5.82], [98.97, 5.97], [98.75, 6.5], [98.85, 6.75], [98.75, 7.0], [98.97, 7.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.64897534236718}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6550560136457848}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.975427252962618, 23.363073505300292, 23.45955670257257, 23.76567254488924]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.396347572131447, 19.633466889257136, 19.632515173368915, 19.900695114726034]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2388793548315193, -1.8578212571741115, -1.822959280277577, -1.4230420529729269]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6014915011492121, -2.465708709915475, -2.64897534236718, -2.193803662582468]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5561660318564432, -1.9975958405029794, -1.9526954158039156, -1.510980067858584]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.864286650790597, -2.8612669528493897, -2.4227916440627624, -2.1252983311621603]}}