{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:35.232184", "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-27_to_2011-Feb-01_117.5_-1.0"}, "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": 2011010001356}, "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 27 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 01 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 89585.47962538332}, "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": ["Indonesia"]}, "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": ["Celebes Sea", "Makassar 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": -1.0}, "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": 117.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "117.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.0, 1.75], [119.53, 1.53], [119.75, 1.0], [119.53, 0.47], [119.0, 0.25], [118.47, 0.47], [118.25, 1.0], [118.47, 1.53], [119.0, 1.75]]]]}, "2011-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.47, -1.53], [117.25, -1.0], [117.47, -0.47], [118.0, -0.25], [118.53, -0.47], [118.75, -1.0], [118.53, -1.53], [118.0, -1.75], [117.47, -1.53]]], [[[118.47, 0.47], [118.25, 1.0], [118.47, 1.53], [119.0, 1.75], [119.53, 1.53], [119.75, 1.0], [119.53, 0.47], [119.0, 0.25], [118.47, 0.47]]]]}, "2011-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.35, -2.75], [116.25, -2.5], [116.35, -2.25], [116.25, -2.0], [116.35, -1.75], [116.25, -1.5], [116.47, -0.97], [116.82, -0.82], [116.97, -0.47], [117.32, -0.32], [117.35, -0.25], [117.25, 0.0], [117.35, 0.25], [117.25, 0.5], [117.47, 1.03], [118.0, 1.25], [118.25, 1.15], [118.32, 1.18], [118.35, 1.25], [118.25, 1.5], [118.47, 2.03], [118.82, 2.18], [118.97, 2.53], [119.5, 2.75], [120.03, 2.53], [120.25, 2.0], [120.03, 1.47], [119.68, 1.32], [119.65, 1.25], [119.75, 1.0], [119.53, 0.47], [119.18, 0.32], [119.15, 0.25], [119.25, 0.0], [119.15, -0.25], [119.25, -0.5], [119.13, -0.8], [119.53, -0.97], [119.75, -1.5], [119.53, -2.03], [119.18, -2.18], [119.15, -2.25], [119.25, -2.5], [119.15, -2.75], [119.25, -3.0], [119.03, -3.53], [118.5, -3.75], [118.25, -3.65], [118.18, -3.68], [118.03, -4.03], [117.5, -4.25], [117.25, -4.15], [117.0, -4.25], [116.47, -4.03], [116.25, -3.5], [116.35, -3.25], [116.25, -3.0], [116.35, -2.75]]]]}, "2011-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.35, -2.75], [116.25, -2.5], [116.35, -2.25], [116.25, -2.0], [116.35, -1.75], [116.25, -1.5], [116.47, -0.97], [116.82, -0.82], [116.96, -0.5], [116.75, 0.0], [116.97, 0.53], [117.32, 0.68], [117.47, 1.03], [118.0, 1.25], [118.25, 1.15], [118.38, 1.2], [118.25, 1.5], [118.47, 2.03], [118.82, 2.18], [118.97, 2.53], [119.5, 2.75], [120.03, 2.53], [120.25, 2.0], [120.03, 1.47], [119.68, 1.32], [119.53, 0.97], [119.13, 0.8], [119.25, 0.5], [119.15, 0.25], [119.25, 0.0], [119.15, -0.25], [119.25, -0.5], [119.13, -0.8], [119.53, -0.97], [119.75, -1.5], [119.53, -2.03], [119.18, -2.18], [119.15, -2.25], [119.25, -2.5], [119.15, -2.75], [119.25, -3.0], [119.03, -3.53], [118.5, -3.75], [118.25, -3.65], [118.18, -3.68], [118.03, -4.03], [117.5, -4.25], [117.25, -4.15], [117.0, -4.25], [116.47, -4.03], [116.25, -3.5], [116.35, -3.25], [116.25, -3.0], [116.35, -2.75]]]]}, "2011-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.35, -2.75], [116.25, -2.5], [116.35, -2.25], [116.25, -2.0], [116.35, -1.75], [116.25, -1.5], [116.47, -0.97], [116.82, -0.82], [116.96, -0.5], [116.75, 0.0], [116.97, 0.53], [117.32, 0.68], [117.47, 1.03], [118.0, 1.25], [118.25, 1.15], [118.38, 1.2], [118.25, 1.5], [118.47, 2.03], [118.82, 2.18], [118.97, 2.53], [119.5, 2.75], [120.03, 2.53], [120.25, 2.0], [120.03, 1.47], [119.68, 1.32], [119.53, 0.97], [119.13, 0.8], [119.25, 0.5], [119.15, 0.25], [119.25, 0.0], [119.15, -0.25], [119.25, -0.5], [119.13, -0.8], [119.53, -0.97], [119.75, -1.5], [119.53, -2.03], [119.18, -2.18], [119.15, -2.25], [119.25, -2.5], [119.15, -2.75], [119.25, -3.0], [119.03, -3.53], [118.5, -3.75], [118.25, -3.65], [118.18, -3.68], [118.03, -4.03], [117.5, -4.25], [117.25, -4.15], [117.0, -4.25], [116.47, -4.03], [116.25, -3.5], [116.35, -3.25], [116.25, -3.0], [116.35, -2.75]]]]}, "2011-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.97, 0.53], [117.5, 0.75], [118.03, 0.53], [118.25, 0.0], [118.04, -0.5], [118.25, -1.0], [118.03, -1.53], [117.5, -1.75], [116.97, -1.53], [116.75, -1.0], [116.96, -0.5], [116.75, 0.0], [116.97, 0.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.2954177256140724}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -0.9450906470004787}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.38346236701335, 25.838246602166464, 25.984796281871297, 25.84310957901363, 25.863450078277538, 25.90382542060604]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.38346236701335, 25.446275615635386, 25.16069286946521, 25.49263777533264, 25.5033785689281, 25.69021792809758]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.726104041756571, -0.6719208992788595, -0.8654349658438706, -1.0312634575380315, -0.9773329489230917, -0.7851216590942443]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.726104041756571, -0.6824950438100927, -1.1401672058694317, -1.23960980454126, -1.2954177256140724, -0.8758141192921016]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.562923514945602, -1.2951789386492654, -1.48076023869949, -1.7528302114121608, -1.6867006247266974, -1.4061588684479847]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.562923514945602, -1.3684486793210024, -2.0516851513186807, -2.2476914471736205, -2.0969063105563, -1.4960478364393186]}}