{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:08.067866", "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": "2017-Oct-15_to_2017-Oct-18_119.0_-4.0"}, "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": 2017100000450}, "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": "October 15 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 18 2017"}, "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": 58540.507728565266}, "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": ["Java 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": -4.0}, "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": 119.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.75}, "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": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.47, -6.03], [114.25, -5.5], [114.47, -4.97], [115.0, -4.75], [115.25, -4.85], [115.5, -4.75], [115.75, -4.85], [115.82, -4.82], [115.97, -4.47], [116.5, -4.25], [116.75, -4.35], [116.82, -4.32], [116.85, -4.25], [116.75, -4.0], [116.97, -3.47], [117.32, -3.32], [117.47, -2.97], [118.0, -2.75], [118.25, -2.85], [118.5, -2.75], [119.03, -2.97], [119.18, -3.32], [119.53, -3.47], [119.75, -4.0], [119.53, -4.53], [119.18, -4.68], [119.03, -5.03], [118.5, -5.25], [118.25, -5.15], [118.18, -5.18], [118.03, -5.53], [117.68, -5.68], [117.53, -6.03], [117.0, -6.25], [116.75, -6.15], [116.5, -6.25], [116.25, -6.15], [116.0, -6.25], [115.75, -6.15], [115.5, -6.25], [115.25, -6.15], [115.0, -6.25], [114.47, -6.03]]]]}, "2017-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.47, -6.03], [114.25, -5.5], [114.47, -4.97], [115.0, -4.75], [115.25, -4.85], [115.5, -4.75], [115.75, -4.85], [115.82, -4.82], [115.97, -4.47], [116.5, -4.25], [116.75, -4.35], [116.82, -4.32], [116.85, -4.25], [116.75, -4.0], [116.97, -3.47], [117.32, -3.32], [117.47, -2.97], [118.0, -2.75], [118.25, -2.85], [118.5, -2.75], [118.75, -2.85], [119.0, -2.75], [119.53, -2.97], [119.68, -3.32], [120.03, -3.47], [120.25, -4.0], [120.03, -4.53], [119.5, -4.75], [119.25, -4.65], [119.18, -4.68], [119.03, -5.03], [118.5, -5.25], [118.25, -5.15], [118.18, -5.18], [118.03, -5.53], [117.68, -5.68], [117.53, -6.03], [117.0, -6.25], [116.75, -6.15], [116.5, -6.25], [116.25, -6.15], [116.0, -6.25], [115.75, -6.15], [115.5, -6.25], [115.25, -6.15], [115.0, -6.25], [114.47, -6.03]]]]}, "2017-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.47, -6.03], [114.25, -5.5], [114.47, -4.97], [115.0, -4.75], [115.25, -4.85], [115.5, -4.75], [115.75, -4.85], [115.82, -4.82], [115.97, -4.47], [116.5, -4.25], [116.75, -4.35], [116.82, -4.32], [116.85, -4.25], [116.75, -4.0], [116.97, -3.47], [117.32, -3.32], [117.47, -2.97], [118.0, -2.75], [118.25, -2.85], [118.5, -2.75], [118.75, -2.85], [119.0, -2.75], [119.53, -2.97], [119.68, -3.32], [120.03, -3.47], [120.25, -4.0], [120.03, -4.53], [119.5, -4.75], [119.25, -4.65], [119.18, -4.68], [119.03, -5.03], [118.5, -5.25], [118.25, -5.15], [118.18, -5.18], [118.03, -5.53], [117.68, -5.68], [117.53, -6.03], [117.0, -6.25], [116.75, -6.15], [116.5, -6.25], [116.25, -6.15], [116.0, -6.25], [115.75, -6.15], [115.5, -6.25], [115.25, -6.15], [115.0, -6.25], [114.47, -6.03]]]]}, "2017-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.0, -2.75], [118.5, -2.96], [119.0, -2.75], [119.53, -2.97], [119.68, -3.32], [120.03, -3.47], [120.25, -4.0], [120.03, -4.53], [119.5, -4.75], [119.25, -4.65], [119.0, -4.75], [118.75, -4.65], [118.5, -4.75], [118.0, -4.54], [117.5, -4.75], [116.97, -4.53], [116.75, -4.0], [116.97, -3.47], [117.32, -3.32], [117.47, -2.97], [118.0, -2.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.8143048557277552}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.056548726060624}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.74617905269656, 26.292008561358784, 26.556342165230888, 26.671027058215884]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.603663072086476, 25.9887664910043, 26.10429808260045, 26.1339759226434]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8715376134374705, -1.2949721881400573, -1.0386160003877223, -0.8825262132055419]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.988799022701528, -1.8143048557277552, -1.6460290046967998, -1.0906080946897418]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5682050884782859, -2.280012335731219, -1.831976564104484, -1.4959946646792037]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8236692311920686, -2.890804176458357, -2.653370684086773, -1.8023326791649232]}}