{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:24.628714", "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": "2015-Jul-13_to_2015-Jul-19_120.5_18.5"}, "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": 2015070000655}, "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": "July 13 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 19 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 165583.2112830468}, "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": ["Philippines"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": ["Philippine Sea", "South China 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": 18.5}, "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": 120.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 117.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "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": {"2015-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, 18.03], [119.88, 18.2], [119.82, 18.32], [119.47, 18.47], [119.25, 19.0], [119.47, 19.53], [119.82, 19.68], [119.85, 19.75], [119.82, 19.82], [119.47, 19.97], [119.25, 20.5], [119.47, 21.03], [119.82, 21.18], [119.97, 21.53], [120.5, 21.75], [120.75, 21.65], [121.0, 21.75], [121.25, 21.65], [121.5, 21.75], [121.75, 21.65], [122.0, 21.75], [122.5, 21.54], [123.0, 21.75], [123.25, 21.65], [123.32, 21.68], [123.47, 22.03], [124.0, 22.25], [124.25, 22.15], [124.5, 22.25], [124.75, 22.15], [125.0, 22.25], [125.53, 22.03], [125.68, 21.68], [126.03, 21.53], [126.18, 21.18], [126.53, 21.03], [126.75, 20.5], [126.53, 19.97], [126.0, 19.75], [125.75, 19.85], [125.5, 19.75], [125.25, 19.85], [125.0, 19.75], [124.75, 19.85], [124.5, 19.75], [124.25, 19.85], [124.0, 19.75], [123.75, 19.85], [123.5, 19.75], [123.25, 19.85], [123.0, 19.75], [122.75, 19.85], [122.5, 19.75], [122.25, 19.85], [122.0, 19.75], [121.75, 19.85], [121.68, 19.82], [121.65, 19.75], [121.75, 19.5], [121.53, 18.97], [121.18, 18.82], [121.15, 18.75], [121.25, 18.5], [121.03, 17.97], [120.63, 17.8], [120.75, 17.5], [120.65, 17.25], [120.75, 17.0], [120.53, 16.47], [120.0, 16.25], [119.47, 16.47], [119.25, 17.0], [119.35, 17.25], [119.25, 17.5], [119.47, 18.03]]]]}, "2015-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.75, 20.0], [117.97, 20.53], [118.5, 20.75], [118.75, 20.65], [119.0, 20.75], [119.25, 20.65], [119.32, 20.68], [119.47, 21.03], [119.82, 21.18], [119.97, 21.53], [120.5, 21.75], [120.75, 21.65], [121.0, 21.75], [121.25, 21.65], [121.5, 21.75], [121.75, 21.65], [122.0, 21.75], [122.5, 21.54], [123.0, 21.75], [123.25, 21.65], [123.32, 21.68], [123.47, 22.03], [124.0, 22.25], [124.25, 22.15], [124.5, 22.25], [124.75, 22.15], [125.0, 22.25], [125.53, 22.03], [125.68, 21.68], [126.03, 21.53], [126.18, 21.18], [126.53, 21.03], [126.75, 20.5], [126.53, 19.97], [126.0, 19.75], [125.75, 19.85], [125.5, 19.75], [125.25, 19.85], [125.0, 19.75], [124.75, 19.85], [124.5, 19.75], [124.25, 19.85], [124.0, 19.75], [123.75, 19.85], [123.5, 19.75], [123.25, 19.85], [123.0, 19.75], [122.75, 19.85], [122.5, 19.75], [122.25, 19.85], [122.0, 19.75], [121.75, 19.85], [121.68, 19.82], [121.65, 19.75], [121.75, 19.5], [121.53, 18.97], [121.18, 18.82], [121.15, 18.75], [121.18, 18.68], [121.53, 18.53], [121.75, 18.0], [121.53, 17.47], [121.0, 17.25], [120.75, 17.35], [120.68, 17.32], [120.65, 17.25], [120.75, 17.0], [120.65, 16.75], [120.75, 16.5], [120.53, 15.97], [120.0, 15.75], [119.47, 15.97], [119.25, 16.5], [119.35, 16.75], [119.25, 17.0], [119.35, 17.25], [119.25, 17.5], [119.47, 18.03], [119.82, 18.18], [119.85, 18.25], [119.82, 18.32], [119.47, 18.47], [119.3, 18.88], [119.0, 18.75], [118.47, 18.97], [118.32, 19.32], [117.97, 19.47], [117.75, 20.0]]]]}, "2015-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.75, 20.0], [117.97, 20.53], [118.5, 20.75], [118.75, 20.65], [119.0, 20.75], [119.25, 20.65], [119.32, 20.68], [119.47, 21.03], [119.82, 21.18], [119.97, 21.53], [120.5, 21.75], [120.75, 21.65], [121.0, 21.75], [121.25, 21.65], [121.5, 21.75], [121.75, 21.65], [122.0, 21.75], [122.5, 21.54], [123.0, 21.75], [123.25, 21.65], [123.32, 21.68], [123.47, 22.03], [124.0, 22.25], [124.25, 22.15], [124.5, 22.25], [124.75, 22.15], [125.0, 22.25], [125.53, 22.03], [125.68, 21.68], [126.03, 21.53], [126.18, 21.18], [126.53, 21.03], [126.75, 20.5], [126.53, 19.97], [126.0, 19.75], [125.75, 19.85], [125.5, 19.75], [125.25, 19.85], [125.0, 19.75], [124.75, 19.85], [124.5, 19.75], [124.25, 19.85], [124.0, 19.75], [123.75, 19.85], [123.5, 19.75], [123.25, 19.85], [123.0, 19.75], [122.75, 19.85], [122.5, 19.75], [122.25, 19.85], [122.0, 19.75], [121.75, 19.85], [121.68, 19.82], [121.65, 19.75], [121.75, 19.5], [121.53, 18.97], [121.18, 18.82], [121.15, 18.75], [121.18, 18.68], [121.53, 18.53], [121.75, 18.0], [121.53, 17.47], [121.0, 17.25], [120.75, 17.35], [120.68, 17.32], [120.65, 17.25], [120.75, 17.0], [120.65, 16.75], [120.75, 16.5], [120.53, 15.97], [120.0, 15.75], [119.47, 15.97], [119.25, 16.5], [119.35, 16.75], [119.25, 17.0], [119.35, 17.25], [119.25, 17.5], [119.47, 18.03], [119.82, 18.18], [119.85, 18.25], [119.82, 18.32], [119.47, 18.47], [119.3, 18.88], [119.0, 18.75], [118.47, 18.97], [118.32, 19.32], [117.97, 19.47], [117.75, 20.0]]]]}, "2015-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.75, 20.0], [117.97, 20.53], [118.5, 20.75], [118.75, 20.65], [119.0, 20.75], [119.25, 20.65], [119.5, 20.75], [119.75, 20.65], [119.82, 20.68], [119.97, 21.03], [120.5, 21.25], [121.0, 21.04], [121.5, 21.25], [121.75, 21.15], [122.0, 21.25], [122.3, 21.13], [122.47, 21.53], [123.0, 21.75], [123.25, 21.65], [123.5, 21.75], [123.75, 21.65], [123.82, 21.68], [123.97, 22.03], [124.5, 22.25], [124.75, 22.15], [125.0, 22.25], [125.53, 22.03], [125.68, 21.68], [126.03, 21.53], [126.18, 21.18], [126.25, 21.15], [126.5, 21.25], [127.03, 21.03], [127.25, 20.5], [127.03, 19.97], [126.5, 19.75], [126.25, 19.85], [126.0, 19.75], [125.75, 19.85], [125.5, 19.75], [125.25, 19.85], [125.0, 19.75], [124.75, 19.85], [124.5, 19.75], [124.25, 19.85], [124.0, 19.75], [123.75, 19.85], [123.5, 19.75], [122.97, 19.97], [122.82, 20.32], [122.7, 20.38], [122.53, 19.97], [122.13, 19.8], [122.25, 19.5], [122.15, 19.25], [122.25, 19.0], [122.04, 18.5], [122.25, 18.0], [122.15, 17.75], [122.25, 17.5], [122.03, 16.97], [121.5, 16.75], [121.25, 16.85], [121.0, 16.75], [120.57, 16.93], [120.75, 16.5], [120.53, 15.97], [120.0, 15.75], [119.47, 15.97], [119.25, 16.5], [119.47, 17.03], [120.0, 17.25], [120.43, 17.07], [120.32, 17.32], [119.97, 17.47], [119.75, 18.0], [119.85, 18.25], [119.75, 18.5], [119.85, 18.75], [119.75, 19.0], [119.88, 19.3], [119.75, 19.35], [119.68, 19.32], [119.53, 18.97], [119.0, 18.75], [118.47, 18.97], [118.32, 19.32], [117.97, 19.47], [117.75, 20.0]]]]}, "2015-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.75, 19.0], [119.97, 19.53], [120.32, 19.68], [120.35, 19.75], [120.25, 20.0], [120.47, 20.53], [121.0, 20.75], [121.53, 20.53], [121.68, 20.18], [122.03, 20.03], [122.25, 19.5], [122.15, 19.25], [122.25, 19.0], [122.04, 18.5], [122.25, 18.0], [122.15, 17.75], [122.25, 17.5], [122.03, 16.97], [121.5, 16.75], [121.25, 16.85], [121.0, 16.75], [120.57, 16.93], [120.75, 16.5], [120.53, 15.97], [120.0, 15.75], [119.47, 15.97], [119.25, 16.5], [119.47, 17.03], [120.0, 17.25], [120.43, 17.07], [120.32, 17.32], [119.97, 17.47], [119.75, 18.0], [119.85, 18.25], [119.75, 18.5], [119.85, 18.75], [119.75, 19.0]]], [[[117.5, 21.75], [117.75, 21.65], [118.0, 21.75], [118.25, 21.65], [118.5, 21.75], [119.03, 21.53], [119.18, 21.18], [119.53, 21.03], [119.75, 20.5], [119.53, 19.97], [119.0, 19.75], [118.75, 19.85], [118.5, 19.75], [118.25, 19.85], [118.0, 19.75], [117.47, 19.97], [117.32, 20.32], [116.97, 20.47], [116.75, 21.0], [116.97, 21.53], [117.5, 21.75]]], [[[123.0, 21.75], [123.25, 21.65], [123.5, 21.75], [123.75, 21.65], [124.0, 21.75], [124.25, 21.65], [124.5, 21.75], [124.75, 21.65], [125.0, 21.75], [125.53, 21.53], [125.68, 21.18], [126.0, 21.04], [126.5, 21.25], [127.03, 21.03], [127.25, 20.5], [127.03, 19.97], [126.5, 19.75], [126.0, 19.96], [125.5, 19.75], [125.25, 19.85], [125.0, 19.75], [124.75, 19.85], [124.5, 19.75], [124.25, 19.85], [124.0, 19.75], [123.75, 19.85], [123.5, 19.75], [122.97, 19.97], [122.82, 20.32], [122.47, 20.47], [122.25, 21.0], [122.47, 21.53], [123.0, 21.75]]]]}, "2015-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.75, 19.0], [119.97, 19.53], [120.32, 19.68], [120.35, 19.75], [120.25, 20.0], [120.47, 20.53], [121.0, 20.75], [121.53, 20.53], [121.68, 20.18], [122.03, 20.03], [122.25, 19.5], [122.15, 19.25], [122.25, 19.0], [122.04, 18.5], [122.25, 18.0], [122.15, 17.75], [122.25, 17.5], [122.03, 16.97], [121.5, 16.75], [121.25, 16.85], [121.0, 16.75], [120.57, 16.93], [120.75, 16.5], [120.53, 15.97], [120.0, 15.75], [119.47, 15.97], [119.25, 16.5], [119.47, 17.03], [120.0, 17.25], [120.43, 17.07], [120.32, 17.32], [119.97, 17.47], [119.75, 18.0], [119.85, 18.25], [119.75, 18.5], [119.85, 18.75], [119.75, 19.0]]], [[[125.75, 20.5], [125.97, 21.03], [126.5, 21.25], [127.03, 21.03], [127.25, 20.5], [127.03, 19.97], [126.5, 19.75], [125.97, 19.97], [125.75, 20.5]]], [[[117.5, 21.75], [117.75, 21.65], [118.0, 21.75], [118.25, 21.65], [118.5, 21.75], [119.03, 21.53], [119.18, 21.18], [119.53, 21.03], [119.75, 20.5], [119.53, 19.97], [119.0, 19.75], [118.75, 19.85], [118.5, 19.75], [118.25, 19.85], [118.0, 19.75], [117.47, 19.97], [117.32, 20.32], [116.97, 20.47], [116.75, 21.0], [116.97, 21.53], [117.5, 21.75]]]]}, "2015-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, 21.0], [116.97, 21.53], [117.5, 21.75], [117.75, 21.65], [118.0, 21.75], [118.25, 21.65], [118.5, 21.75], [119.03, 21.53], [119.18, 21.18], [119.53, 21.03], [119.75, 20.5], [119.53, 19.97], [119.0, 19.75], [118.75, 19.85], [118.5, 19.75], [118.25, 19.85], [118.0, 19.75], [117.47, 19.97], [117.32, 20.32], [116.97, 20.47], [116.75, 21.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.5052155252654416}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1902912868593363}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.012812824785954, 26.839909778476454, 26.914008974833337, 26.676492035540434, 26.527089458637192, 26.16662075001176, 27.146584248498073]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.384902082015856, 22.357005169507772, 22.642708801827496, 21.16300866123794, 20.92490843051661, 20.94929269042609, 27.047854349728766]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1507542253547935, -1.1910520181613693, -1.1297613834714502, -1.1509662516350823, -1.244665426867953, -1.3749729258966135, -1.1644554694590283]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3794207565541683, -1.6324828865077734, -1.3928530171583589, -1.8088663450576519, -2.165360062067009, -2.5052155252654416, -1.2915090879453146]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5775077071634793, -1.58632294645288, -1.5019592817172807, -1.5055673722106113, -1.6165197562310403, -1.7084472360667664, -1.62089364567846]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0040791338224846, -1.886962109647983, -1.784047260938641, -1.9633720009609013, -2.0981419302932416, -2.2511720264648876, -1.766382764298996]}}