{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:42.117979", "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": "2014-Feb-13_to_2014-Feb-17_117.5_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": 2014020000556}, "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": "February 13 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 17 2014"}, "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": 70800.64774604674}, "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": ["Brunei Darussalam", "Malaysia"]}, "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": ["South China Sea", "Sulu Sea"]}, "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": 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": 113.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.25}, "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": 6.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.5, 7.25], [118.03, 7.03], [118.25, 6.5], [118.03, 5.97], [117.5, 5.75], [116.97, 5.97], [116.75, 6.5], [116.97, 7.03], [117.5, 7.25]]]]}, "2014-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, 6.5], [116.97, 7.03], [117.5, 7.25], [117.75, 7.15], [118.0, 7.25], [118.25, 7.15], [118.5, 7.25], [119.03, 7.03], [119.25, 6.5], [119.15, 6.25], [119.25, 6.0], [119.03, 5.47], [118.5, 5.25], [118.25, 5.35], [118.0, 5.25], [117.47, 5.47], [117.32, 5.82], [116.97, 5.97], [116.75, 6.5]]]]}, "2014-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.0, 5.25], [114.25, 5.15], [114.32, 5.18], [114.47, 5.53], [114.82, 5.68], [114.97, 6.03], [115.5, 6.25], [116.0, 6.04], [116.5, 6.25], [116.93, 6.07], [116.75, 6.5], [116.97, 7.03], [117.5, 7.25], [117.75, 7.15], [118.0, 7.25], [118.25, 7.15], [118.5, 7.25], [119.03, 7.03], [119.18, 6.68], [119.53, 6.53], [119.75, 6.0], [119.65, 5.75], [119.75, 5.5], [119.53, 4.97], [119.0, 4.75], [118.47, 4.97], [118.32, 5.32], [118.25, 5.35], [118.18, 5.32], [118.03, 4.97], [117.68, 4.82], [117.65, 4.75], [117.75, 4.5], [117.53, 3.97], [117.0, 3.75], [116.75, 3.85], [116.5, 3.75], [116.25, 3.85], [116.0, 3.75], [115.5, 3.96], [115.18, 3.82], [115.03, 3.47], [114.5, 3.25], [114.25, 3.35], [114.0, 3.25], [113.75, 3.35], [113.5, 3.25], [112.97, 3.47], [112.75, 4.0], [112.97, 4.53], [113.32, 4.68], [113.47, 5.03], [114.0, 5.25]]]]}, "2014-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.0, 5.25], [114.25, 5.15], [114.32, 5.18], [114.47, 5.53], [114.82, 5.68], [114.97, 6.03], [115.5, 6.25], [116.0, 6.04], [116.5, 6.25], [116.93, 6.07], [116.75, 6.5], [116.97, 7.03], [117.5, 7.25], [117.75, 7.15], [118.0, 7.25], [118.25, 7.15], [118.5, 7.25], [119.03, 7.03], [119.18, 6.68], [119.53, 6.53], [119.75, 6.0], [119.65, 5.75], [119.75, 5.5], [119.53, 4.97], [119.0, 4.75], [118.47, 4.97], [118.32, 5.32], [118.25, 5.35], [118.18, 5.32], [118.03, 4.97], [117.68, 4.82], [117.65, 4.75], [117.75, 4.5], [117.53, 3.97], [117.0, 3.75], [116.75, 3.85], [116.5, 3.75], [116.25, 3.85], [116.0, 3.75], [115.5, 3.96], [115.18, 3.82], [115.03, 3.47], [114.5, 3.25], [114.25, 3.35], [114.0, 3.25], [113.75, 3.35], [113.5, 3.25], [112.97, 3.47], [112.75, 4.0], [112.97, 4.53], [113.32, 4.68], [113.47, 5.03], [114.0, 5.25]]]]}, "2014-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.0, 5.25], [114.25, 5.15], [114.32, 5.18], [114.47, 5.53], [114.82, 5.68], [114.97, 6.03], [115.5, 6.25], [116.0, 6.04], [116.5, 6.25], [116.93, 6.07], [116.75, 6.5], [116.97, 7.03], [117.5, 7.25], [117.75, 7.15], [118.0, 7.25], [118.25, 7.15], [118.5, 7.25], [119.03, 7.03], [119.18, 6.68], [119.53, 6.53], [119.75, 6.0], [119.65, 5.75], [119.75, 5.5], [119.53, 4.97], [119.0, 4.75], [118.47, 4.97], [118.32, 5.32], [118.25, 5.35], [118.18, 5.32], [118.03, 4.97], [117.68, 4.82], [117.65, 4.75], [117.75, 4.5], [117.53, 3.97], [117.0, 3.75], [116.75, 3.85], [116.5, 3.75], [116.25, 3.85], [116.0, 3.75], [115.5, 3.96], [115.18, 3.82], [115.03, 3.47], [114.5, 3.25], [114.25, 3.35], [114.0, 3.25], [113.75, 3.35], [113.5, 3.25], [112.97, 3.47], [112.75, 4.0], [112.97, 4.53], [113.32, 4.68], [113.47, 5.03], [114.0, 5.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.6188382058708726}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.2794886832880752}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.269268167086977, 25.382596828737405, 24.38072371326217, 24.147284945069714, 24.166015439076034]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.269268167086977, 25.113213266075377, 21.084505930583703, 20.598442213608166, 20.541818717035312]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9511840274628298, -0.9666639489578757, -1.1293235989308157, -1.400856038205948, -1.390565905226429]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9511840274628298, -1.1288736050444754, -1.7403277246606876, -2.0173469661660306, -2.6188382058708726]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5935323775114612, -1.837128018023331, -1.6849971302695048, -2.13489720444623, -2.033924533717856]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5935323775114612, -1.9531748134657252, -2.240519969012472, -3.1888571283699965, -2.864106754473225]}}