{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:26.126480", "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-22_to_2015-Jul-27_149.5_-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": 2015070000987}, "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 22 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 27 2015"}, "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": 61359.01213302346}, "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": ["Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "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": ["Solomon 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": 149.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "149.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 150.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.97, -5.97], [149.5, -5.75], [150.03, -5.97], [150.25, -6.5], [150.15, -6.75], [150.25, -7.0], [150.03, -7.53], [149.5, -7.75], [148.97, -7.53], [148.75, -7.0], [148.85, -6.75], [148.75, -6.5], [148.97, -5.97]]]]}, "2015-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.25, -7.0], [147.47, -6.47], [147.82, -6.32], [147.85, -6.25], [147.75, -6.0], [147.97, -5.47], [148.5, -5.25], [149.03, -5.47], [149.18, -5.82], [149.25, -5.85], [149.5, -5.75], [149.75, -5.85], [150.0, -5.75], [150.53, -5.97], [150.75, -6.5], [150.54, -7.0], [150.75, -7.5], [150.53, -8.03], [150.18, -8.18], [150.03, -8.53], [149.5, -8.75], [149.25, -8.65], [149.0, -8.75], [148.75, -8.65], [148.5, -8.75], [147.97, -8.53], [147.75, -8.0], [147.85, -7.75], [147.82, -7.68], [147.47, -7.53], [147.25, -7.0]]]]}, "2015-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.25, -7.0], [147.47, -6.47], [147.82, -6.32], [147.85, -6.25], [147.75, -6.0], [147.85, -5.75], [147.75, -5.5], [147.97, -4.97], [148.5, -4.75], [148.75, -4.85], [149.0, -4.75], [149.53, -4.97], [149.75, -5.5], [149.63, -5.8], [149.75, -5.85], [150.0, -5.75], [150.53, -5.97], [150.75, -6.5], [150.65, -6.75], [150.68, -6.82], [151.03, -6.97], [151.25, -7.5], [151.03, -8.03], [150.5, -8.25], [150.25, -8.15], [150.18, -8.18], [150.03, -8.53], [149.5, -8.75], [149.25, -8.65], [149.0, -8.75], [148.75, -8.65], [148.5, -8.75], [147.97, -8.53], [147.75, -8.0], [147.85, -7.75], [147.82, -7.68], [147.47, -7.53], [147.25, -7.0]]]]}, "2015-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.25, -7.0], [147.47, -6.47], [147.82, -6.32], [147.85, -6.25], [147.75, -6.0], [147.85, -5.75], [147.75, -5.5], [147.97, -4.97], [148.5, -4.75], [148.75, -4.85], [149.0, -4.75], [149.53, -4.97], [149.75, -5.5], [149.63, -5.8], [149.75, -5.85], [150.0, -5.75], [150.53, -5.97], [150.75, -6.5], [150.65, -6.75], [150.68, -6.82], [151.03, -6.97], [151.25, -7.5], [151.03, -8.03], [150.5, -8.25], [150.25, -8.15], [150.18, -8.18], [150.03, -8.53], [149.5, -8.75], [149.25, -8.65], [149.0, -8.75], [148.75, -8.65], [148.5, -8.75], [147.97, -8.53], [147.75, -8.0], [147.85, -7.75], [147.82, -7.68], [147.47, -7.53], [147.25, -7.0]]]]}, "2015-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.85, -6.25], [147.75, -6.0], [147.85, -5.75], [147.75, -5.5], [147.97, -4.97], [148.5, -4.75], [148.75, -4.85], [149.0, -4.75], [149.53, -4.97], [149.75, -5.5], [149.63, -5.8], [149.75, -5.85], [150.0, -5.75], [150.53, -5.97], [150.75, -6.5], [150.65, -6.75], [150.68, -6.82], [151.03, -6.97], [151.25, -7.5], [151.03, -8.03], [150.5, -8.25], [150.25, -8.15], [150.18, -8.18], [150.03, -8.53], [149.5, -8.75], [149.25, -8.65], [149.0, -8.75], [148.47, -8.53], [148.25, -8.0], [148.35, -7.75], [148.32, -7.68], [147.97, -7.53], [147.75, -7.0], [147.85, -6.75], [147.75, -6.5], [147.85, -6.25]]]]}, "2015-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.0, -5.75], [150.53, -5.97], [150.75, -6.5], [150.53, -7.03], [150.0, -7.25], [149.47, -7.03], [149.25, -6.5], [149.47, -5.97], [150.0, -5.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.2303179243909312}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -0.7902808853095138}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.388601169019864, 25.258014302703714, 25.17504748253168, 25.210080090753365, 24.92327596021488, 25.280370008567843]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.3587658202909, 24.940654824434716, 24.816985847555372, 24.882232467927906, 24.704551939234932, 25.280370008567843]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.5939298425560366, -0.7386887579579486, -0.7750856078344356, -0.7186406135176014, -0.9763483414792451, -0.5820212388958907]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.595919169155934, -0.8511169461497161, -0.8994785103517984, -0.8997057459562825, -1.2303179243909312, -0.5820212388958907]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2381701335840638, -1.4789228664725245, -1.5844990232030791, -1.4742254687736098, -2.005687655148176, -1.2690003892441433]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2818094939846865, -1.684925043404031, -1.997609244400993, -1.8073297841180074, -2.430707322625409, -1.2690003892441433]}}