{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:54.158968", "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-Sep-13_to_2015-Sep-17_176.0_51.5"}, "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": 2015090001933}, "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": "September 13 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 17 2015"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 357588.3084194085}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Pacific-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": ["Bering Sea", "North Pacific Ocean"]}, "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": 51.5}, "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": 176.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "176.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 167.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 189.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 49.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[168.5, 50.75], [168.75, 50.65], [169.0, 50.75], [169.25, 50.65], [169.32, 50.68], [169.35, 50.75], [169.25, 51.0], [169.47, 51.53], [170.0, 51.75], [170.25, 51.65], [170.5, 51.75], [170.75, 51.65], [171.0, 51.75], [171.25, 51.65], [171.32, 51.68], [171.47, 52.03], [172.0, 52.25], [172.25, 52.15], [172.32, 52.18], [172.46, 52.5], [172.25, 53.0], [172.47, 53.53], [173.0, 53.75], [173.25, 53.65], [173.5, 53.75], [173.75, 53.65], [174.0, 53.75], [174.25, 53.65], [174.5, 53.75], [174.75, 53.65], [175.0, 53.75], [175.25, 53.65], [175.5, 53.75], [175.75, 53.65], [176.0, 53.75], [176.25, 53.65], [176.5, 53.75], [176.75, 53.65], [177.0, 53.75], [177.25, 53.65], [177.32, 53.68], [177.47, 54.03], [178.0, 54.25], [178.25, 54.15], [178.5, 54.25], [178.75, 54.15], [179.0, 54.25], [179.25, 54.15], [179.32, 54.18], [179.47, 54.53], [180.0, 54.75], [180.0, 50.25], [179.5, 50.46], [179.0, 50.25], [178.75, 50.35], [178.5, 50.25], [177.97, 50.47], [177.82, 50.82], [177.75, 50.85], [177.68, 50.82], [177.53, 50.47], [177.0, 50.25], [176.75, 50.35], [176.5, 50.25], [176.25, 50.35], [176.0, 50.25], [175.75, 50.35], [175.5, 50.25], [175.25, 50.35], [175.18, 50.32], [175.03, 49.97], [174.5, 49.75], [174.25, 49.85], [174.18, 49.82], [174.03, 49.47], [173.5, 49.25], [172.97, 49.47], [172.82, 49.82], [172.75, 49.85], [172.68, 49.82], [172.65, 49.75], [172.75, 49.5], [172.53, 48.97], [172.0, 48.75], [171.75, 48.85], [171.5, 48.75], [171.0, 48.96], [170.5, 48.75], [170.25, 48.85], [170.0, 48.75], [169.75, 48.85], [169.5, 48.75], [169.25, 48.85], [169.0, 48.75], [168.75, 48.85], [168.5, 48.75], [168.25, 48.85], [168.0, 48.75], [167.47, 48.97], [167.25, 49.5], [167.47, 50.03], [167.82, 50.18], [167.97, 50.53], [168.5, 50.75]]], [[[-179.47, 54.53], [-179.32, 54.18], [-178.97, 54.03], [-178.75, 53.5], [-178.85, 53.25], [-178.75, 53.0], [-178.97, 52.47], [-179.5, 52.25], [-179.75, 52.35], [-179.87, 52.3], [-179.82, 52.18], [-179.47, 52.03], [-179.32, 51.68], [-179.25, 51.65], [-179.0, 51.75], [-178.75, 51.65], [-178.5, 51.75], [-177.97, 51.53], [-177.75, 51.0], [-177.97, 50.47], [-178.5, 50.25], [-178.75, 50.35], [-179.0, 50.25], [-179.25, 50.35], [-179.5, 50.25], [-179.75, 50.35], [-180.0, 50.25], [-180.0, 54.75], [-179.47, 54.53]]]]}, "2015-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[168.5, 50.75], [168.75, 50.65], [169.0, 50.75], [169.25, 50.65], [169.32, 50.68], [169.35, 50.75], [169.25, 51.0], [169.47, 51.53], [170.0, 51.75], [170.25, 51.65], [170.5, 51.75], [170.75, 51.65], [171.0, 51.75], [171.25, 51.65], [171.32, 51.68], [171.47, 52.03], [172.0, 52.25], [172.25, 52.15], [172.32, 52.18], [172.46, 52.5], [172.25, 53.0], [172.47, 53.53], [173.0, 53.75], [173.25, 53.65], [173.5, 53.75], [173.75, 53.65], [174.0, 53.75], [174.25, 53.65], [174.5, 53.75], [174.75, 53.65], [175.0, 53.75], [175.25, 53.65], [175.5, 53.75], [175.75, 53.65], [176.0, 53.75], [176.25, 53.65], [176.5, 53.75], [176.75, 53.65], [177.0, 53.75], [177.25, 53.65], [177.32, 53.68], [177.47, 54.03], [178.0, 54.25], [178.25, 54.15], [178.5, 54.25], [178.75, 54.15], [179.0, 54.25], [179.25, 54.15], [179.32, 54.18], [179.47, 54.53], [180.0, 54.75], [180.0, 49.75], [179.75, 49.85], [179.5, 49.75], [179.25, 49.85], [179.0, 49.75], [178.75, 49.85], [178.5, 49.75], [178.25, 49.85], [178.0, 49.75], [177.75, 49.85], [177.5, 49.75], [177.25, 49.85], [177.0, 49.75], [176.75, 49.85], [176.5, 49.75], [176.25, 49.85], [176.0, 49.75], [175.75, 49.85], [175.5, 49.75], [175.25, 49.85], [175.0, 49.75], [174.75, 49.85], [174.5, 49.75], [174.25, 49.85], [174.18, 49.82], [174.03, 49.47], [173.5, 49.25], [172.97, 49.47], [172.82, 49.82], [172.75, 49.85], [172.68, 49.82], [172.65, 49.75], [172.75, 49.5], [172.53, 48.97], [172.0, 48.75], [171.75, 48.85], [171.5, 48.75], [171.0, 48.96], [170.5, 48.75], [170.25, 48.85], [170.0, 48.75], [169.75, 48.85], [169.5, 48.75], [169.25, 48.85], [169.0, 48.75], [168.75, 48.85], [168.5, 48.75], [168.25, 48.85], [168.0, 48.75], [167.47, 48.97], [167.25, 49.5], [167.47, 50.03], [167.82, 50.18], [167.97, 50.53], [168.5, 50.75]]], [[[-179.47, 54.53], [-179.32, 54.18], [-178.97, 54.03], [-178.82, 53.68], [-178.75, 53.65], [-178.5, 53.75], [-178.25, 53.65], [-178.0, 53.75], [-177.75, 53.65], [-177.5, 53.75], [-177.25, 53.65], [-177.0, 53.75], [-176.75, 53.65], [-176.5, 53.75], [-176.25, 53.65], [-176.18, 53.68], [-176.03, 54.03], [-175.5, 54.25], [-175.25, 54.15], [-175.0, 54.25], [-174.75, 54.15], [-174.5, 54.25], [-174.25, 54.15], [-174.0, 54.25], [-173.75, 54.15], [-173.5, 54.25], [-172.97, 54.03], [-172.82, 53.68], [-172.75, 53.65], [-172.68, 53.68], [-172.53, 54.03], [-172.0, 54.25], [-171.5, 54.04], [-171.0, 54.25], [-170.47, 54.03], [-170.25, 53.5], [-170.47, 52.97], [-170.82, 52.82], [-170.97, 52.47], [-171.5, 52.25], [-171.75, 52.35], [-171.82, 52.32], [-171.97, 51.97], [-172.5, 51.75], [-172.75, 51.85], [-173.0, 51.75], [-173.25, 51.85], [-173.32, 51.82], [-173.47, 51.47], [-173.82, 51.32], [-173.97, 50.97], [-174.5, 50.75], [-174.75, 50.85], [-175.0, 50.75], [-175.25, 50.85], [-175.5, 50.75], [-175.75, 50.85], [-175.82, 50.82], [-175.97, 50.47], [-176.5, 50.25], [-176.75, 50.35], [-177.0, 50.25], [-177.25, 50.35], [-177.5, 50.25], [-177.75, 50.35], [-178.0, 50.25], [-178.25, 50.35], [-178.5, 50.25], [-178.75, 50.35], [-178.82, 50.32], [-178.97, 49.97], [-179.5, 49.75], [-179.75, 49.85], [-180.0, 49.75], [-180.0, 54.75], [-179.47, 54.53]]]]}, "2015-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[168.5, 50.75], [168.75, 50.65], [169.0, 50.75], [169.25, 50.65], [169.32, 50.68], [169.35, 50.75], [169.25, 51.0], [169.47, 51.53], [170.0, 51.75], [170.25, 51.65], [170.5, 51.75], [170.75, 51.65], [171.0, 51.75], [171.25, 51.65], [171.32, 51.68], [171.47, 52.03], [172.0, 52.25], [172.25, 52.15], [172.32, 52.18], [172.46, 52.5], [172.25, 53.0], [172.47, 53.53], [173.0, 53.75], [173.25, 53.65], [173.5, 53.75], [173.75, 53.65], [174.0, 53.75], [174.25, 53.65], [174.5, 53.75], [174.75, 53.65], [175.0, 53.75], [175.25, 53.65], [175.5, 53.75], [175.75, 53.65], [176.0, 53.75], [176.25, 53.65], [176.5, 53.75], [176.75, 53.65], [177.0, 53.75], [177.25, 53.65], [177.32, 53.68], [177.47, 54.03], [178.0, 54.25], [178.25, 54.15], [178.5, 54.25], [178.75, 54.15], [179.0, 54.25], [179.25, 54.15], [179.32, 54.18], [179.47, 54.53], [180.0, 54.75], [180.0, 49.75], [179.75, 49.85], [179.5, 49.75], [179.25, 49.85], [179.0, 49.75], [178.75, 49.85], [178.5, 49.75], [178.25, 49.85], [178.0, 49.75], [177.75, 49.85], [177.5, 49.75], [177.25, 49.85], [177.0, 49.75], [176.75, 49.85], [176.5, 49.75], [176.25, 49.85], [176.0, 49.75], [175.75, 49.85], [175.5, 49.75], [175.25, 49.85], [175.0, 49.75], [174.75, 49.85], [174.5, 49.75], [174.25, 49.85], [174.18, 49.82], [174.03, 49.47], [173.5, 49.25], [172.97, 49.47], [172.82, 49.82], [172.75, 49.85], [172.68, 49.82], [172.65, 49.75], [172.75, 49.5], [172.53, 48.97], [172.0, 48.75], [171.75, 48.85], [171.5, 48.75], [171.0, 48.96], [170.5, 48.75], [170.25, 48.85], [170.0, 48.75], [169.75, 48.85], [169.5, 48.75], [169.25, 48.85], [169.0, 48.75], [168.75, 48.85], [168.5, 48.75], [168.25, 48.85], [168.0, 48.75], [167.47, 48.97], [167.25, 49.5], [167.47, 50.03], [167.82, 50.18], [167.97, 50.53], [168.5, 50.75]]], [[[-179.47, 54.53], [-179.32, 54.18], [-178.97, 54.03], [-178.82, 53.68], [-178.75, 53.65], [-178.5, 53.75], [-178.25, 53.65], [-178.0, 53.75], [-177.75, 53.65], [-177.5, 53.75], [-177.25, 53.65], [-177.0, 53.75], [-176.75, 53.65], [-176.5, 53.75], [-176.25, 53.65], [-176.18, 53.68], [-176.03, 54.03], [-175.5, 54.25], [-175.25, 54.15], [-175.0, 54.25], [-174.75, 54.15], [-174.5, 54.25], [-174.25, 54.15], [-174.0, 54.25], [-173.75, 54.15], [-173.5, 54.25], [-172.97, 54.03], [-172.82, 53.68], [-172.75, 53.65], [-172.68, 53.68], [-172.53, 54.03], [-172.0, 54.25], [-171.5, 54.04], [-171.0, 54.25], [-170.47, 54.03], [-170.25, 53.5], [-170.47, 52.97], [-170.82, 52.82], [-170.97, 52.47], [-171.5, 52.25], [-171.75, 52.35], [-171.82, 52.32], [-171.97, 51.97], [-172.5, 51.75], [-172.75, 51.85], [-173.0, 51.75], [-173.25, 51.85], [-173.32, 51.82], [-173.47, 51.47], [-173.82, 51.32], [-173.97, 50.97], [-174.5, 50.75], [-174.75, 50.85], [-175.0, 50.75], [-175.25, 50.85], [-175.5, 50.75], [-175.75, 50.85], [-175.82, 50.82], [-175.97, 50.47], [-176.5, 50.25], [-176.75, 50.35], [-177.0, 50.25], [-177.25, 50.35], [-177.5, 50.25], [-177.75, 50.35], [-178.0, 50.25], [-178.25, 50.35], [-178.5, 50.25], [-178.75, 50.35], [-178.82, 50.32], [-178.97, 49.97], [-179.5, 49.75], [-179.75, 49.85], [-180.0, 49.75], [-180.0, 54.75], [-179.47, 54.53]]]]}, "2015-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[170.96, 50.5], [170.75, 51.0], [170.97, 51.53], [171.5, 51.75], [172.03, 51.53], [172.2, 51.13], [172.5, 51.25], [172.75, 51.15], [173.0, 51.25], [173.25, 51.15], [173.5, 51.25], [173.75, 51.15], [174.0, 51.25], [174.25, 51.15], [174.32, 51.18], [174.35, 51.25], [174.32, 51.32], [173.97, 51.47], [173.75, 52.0], [173.88, 52.3], [173.75, 52.35], [173.5, 52.25], [172.97, 52.47], [172.75, 53.0], [172.97, 53.53], [173.5, 53.75], [173.75, 53.65], [174.0, 53.75], [174.53, 53.53], [174.75, 53.0], [174.63, 52.7], [174.75, 52.65], [174.82, 52.68], [174.97, 53.03], [175.5, 53.25], [175.75, 53.15], [176.0, 53.25], [176.53, 53.03], [176.68, 52.68], [176.75, 52.65], [177.0, 52.75], [177.25, 52.65], [177.32, 52.68], [177.47, 53.03], [178.0, 53.25], [178.25, 53.15], [178.5, 53.25], [178.75, 53.15], [179.0, 53.25], [179.25, 53.15], [179.32, 53.18], [179.47, 53.53], [180.0, 53.75], [180.0, 49.75], [179.75, 49.85], [179.5, 49.75], [179.25, 49.85], [179.0, 49.75], [178.75, 49.85], [178.5, 49.75], [178.25, 49.85], [178.0, 49.75], [177.75, 49.85], [177.5, 49.75], [177.25, 49.85], [177.0, 49.75], [176.75, 49.85], [176.5, 49.75], [176.25, 49.85], [176.0, 49.75], [175.75, 49.85], [175.5, 49.75], [175.25, 49.85], [175.0, 49.75], [174.75, 49.85], [174.5, 49.75], [174.25, 49.85], [174.18, 49.82], [174.03, 49.47], [173.5, 49.25], [172.97, 49.47], [172.82, 49.82], [172.75, 49.85], [172.68, 49.82], [172.65, 49.75], [172.75, 49.5], [172.53, 48.97], [172.0, 48.75], [171.75, 48.85], [171.5, 48.75], [170.97, 48.97], [170.75, 49.5], [170.85, 49.75], [170.75, 50.0], [170.96, 50.5]]], [[[-179.75, 53.65], [-179.5, 53.75], [-179.25, 53.65], [-179.0, 53.75], [-178.75, 53.65], [-178.5, 53.75], [-178.25, 53.65], [-178.0, 53.75], [-177.75, 53.65], [-177.5, 53.75], [-177.25, 53.65], [-177.0, 53.75], [-176.75, 53.65], [-176.5, 53.75], [-176.25, 53.65], [-176.18, 53.68], [-176.03, 54.03], [-175.5, 54.25], [-175.25, 54.15], [-175.0, 54.25], [-174.75, 54.15], [-174.5, 54.25], [-174.25, 54.15], [-174.0, 54.25], [-173.75, 54.15], [-173.5, 54.25], [-172.97, 54.03], [-172.82, 53.68], [-172.75, 53.65], [-172.68, 53.68], [-172.53, 54.03], [-172.0, 54.25], [-171.5, 54.04], [-171.0, 54.25], [-170.47, 54.03], [-170.25, 53.5], [-170.47, 52.97], [-170.82, 52.82], [-170.97, 52.47], [-171.5, 52.25], [-171.75, 52.35], [-171.82, 52.32], [-171.97, 51.97], [-172.5, 51.75], [-172.75, 51.85], [-173.0, 51.75], [-173.25, 51.85], [-173.32, 51.82], [-173.47, 51.47], [-173.82, 51.32], [-173.97, 50.97], [-174.5, 50.75], [-174.75, 50.85], [-175.0, 50.75], [-175.25, 50.85], [-175.5, 50.75], [-175.75, 50.85], [-175.82, 50.82], [-175.97, 50.47], [-176.5, 50.25], [-176.75, 50.35], [-177.0, 50.25], [-177.25, 50.35], [-177.5, 50.25], [-177.75, 50.35], [-178.0, 50.25], [-178.25, 50.35], [-178.5, 50.25], [-178.75, 50.35], [-178.82, 50.32], [-178.97, 49.97], [-179.5, 49.75], [-179.75, 49.85], [-180.0, 49.75], [-180.0, 53.75], [-179.75, 53.65]]]]}, "2015-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[180.0, 52.75], [180.0, 51.25], [179.47, 51.47], [179.25, 52.0], [179.47, 52.53], [180.0, 52.75]]], [[[-179.47, 52.53], [-179.25, 52.0], [-179.47, 51.47], [-180.0, 51.25], [-180.0, 52.75], [-179.47, 52.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.667567784495418}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.397940164175391}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.333637395987523, 10.98162600800839, 11.047632483330972, 10.710463419283712, 9.233221029262097]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.920882420018927, 12.40854506298075, 12.513627255613528, 12.314151982274666, 9.233221029262097]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4416184605021019, 1.3223968273602449, 1.46004858674481, 1.3837828295952244, 0.8162814312153728]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.3595174396921834, 2.227740910171235, 2.667567784495418, 2.5313571451499683, 0.8162814312153728]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7558557797228869, 1.619572449921584, 1.7814125520200532, 1.62690384591125, 1.1292634665012107]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.489206198462643, 2.3654148421076666, 2.70653405023135, 2.4725646996422137, 1.1292634665012107]}}