{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:03.865494", "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-Oct-15_to_2015-Oct-18_179.0_51.0"}, "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": 2015100001691}, "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 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 18 2015"}, "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": "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": 95865.2535627954}, "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": 51.0}, "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": 179.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "179.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 175.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 183.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[175.47, 51.47], [175.25, 52.0], [175.47, 52.53], [176.0, 52.75], [176.25, 52.65], [176.38, 52.7], [176.25, 53.0], [176.47, 53.53], [177.0, 53.75], [177.25, 53.65], [177.32, 53.68], [177.47, 54.03], [178.0, 54.25], [178.53, 54.03], [178.68, 53.68], [179.03, 53.53], [179.18, 53.18], [179.53, 53.03], [179.68, 52.68], [179.75, 52.65], [180.0, 52.75], [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], [177.97, 49.97], [177.82, 50.32], [177.47, 50.47], [177.32, 50.82], [176.97, 50.97], [176.82, 51.32], [176.75, 51.35], [176.5, 51.25], [176.25, 51.35], [176.0, 51.25], [175.47, 51.47]]], [[[-179.47, 52.53], [-179.32, 52.18], [-179.25, 52.15], [-179.0, 52.25], [-178.75, 52.15], [-178.5, 52.25], [-178.25, 52.15], [-178.0, 52.25], [-177.75, 52.15], [-177.5, 52.25], [-177.25, 52.15], [-177.0, 52.25], [-176.47, 52.03], [-176.25, 51.5], [-176.35, 51.25], [-176.25, 51.0], [-176.47, 50.47], [-177.0, 50.25], [-177.25, 50.35], [-177.5, 50.25], [-177.75, 50.35], [-178.0, 50.25], [-178.25, 50.35], [-178.32, 50.32], [-178.47, 49.97], [-179.0, 49.75], [-179.25, 49.85], [-179.5, 49.75], [-179.75, 49.85], [-180.0, 49.75], [-180.0, 52.75], [-179.47, 52.53]]]]}, "2015-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[175.47, 51.47], [175.25, 52.0], [175.47, 52.53], [176.0, 52.75], [176.25, 52.65], [176.38, 52.7], [176.25, 53.0], [176.47, 53.53], [177.0, 53.75], [177.25, 53.65], [177.32, 53.68], [177.47, 54.03], [178.0, 54.25], [178.53, 54.03], [178.68, 53.68], [179.03, 53.53], [179.18, 53.18], [179.53, 53.03], [179.68, 52.68], [179.75, 52.65], [179.82, 52.68], [179.97, 53.03], [180.0, 53.04], [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], [177.97, 49.97], [177.82, 50.32], [177.47, 50.47], [177.32, 50.82], [176.97, 50.97], [176.82, 51.32], [176.75, 51.35], [176.5, 51.25], [176.25, 51.35], [176.0, 51.25], [175.47, 51.47]]], [[[-179.5, 53.25], [-179.25, 53.15], [-179.0, 53.25], [-178.75, 53.15], [-178.5, 53.25], [-177.97, 53.03], [-177.75, 52.5], [-177.87, 52.2], [-177.75, 52.15], [-177.5, 52.25], [-177.25, 52.15], [-177.0, 52.25], [-176.47, 52.03], [-176.25, 51.5], [-176.35, 51.25], [-176.25, 51.0], [-176.47, 50.47], [-177.0, 50.25], [-177.25, 50.35], [-177.5, 50.25], [-177.75, 50.35], [-178.0, 50.25], [-178.25, 50.35], [-178.32, 50.32], [-178.47, 49.97], [-179.0, 49.75], [-179.25, 49.85], [-179.5, 49.75], [-179.75, 49.85], [-180.0, 49.75], [-180.0, 53.04], [-179.5, 53.25]]]]}, "2015-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[175.47, 51.47], [175.25, 52.0], [175.47, 52.53], [176.0, 52.75], [176.25, 52.65], [176.38, 52.7], [176.25, 53.0], [176.47, 53.53], [177.0, 53.75], [177.25, 53.65], [177.32, 53.68], [177.47, 54.03], [178.0, 54.25], [178.53, 54.03], [178.68, 53.68], [179.03, 53.53], [179.18, 53.18], [179.53, 53.03], [179.68, 52.68], [179.75, 52.65], [179.82, 52.68], [179.97, 53.03], [180.0, 53.04], [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], [177.97, 49.97], [177.82, 50.32], [177.47, 50.47], [177.32, 50.82], [176.97, 50.97], [176.82, 51.32], [176.75, 51.35], [176.5, 51.25], [176.25, 51.35], [176.0, 51.25], [175.47, 51.47]]], [[[-179.5, 53.25], [-179.25, 53.15], [-179.0, 53.25], [-178.75, 53.15], [-178.5, 53.25], [-177.97, 53.03], [-177.75, 52.5], [-177.87, 52.2], [-177.75, 52.15], [-177.5, 52.25], [-177.25, 52.15], [-177.0, 52.25], [-176.47, 52.03], [-176.25, 51.5], [-176.35, 51.25], [-176.25, 51.0], [-176.47, 50.47], [-177.0, 50.25], [-177.25, 50.35], [-177.5, 50.25], [-177.75, 50.35], [-178.0, 50.25], [-178.25, 50.35], [-178.32, 50.32], [-178.47, 49.97], [-179.0, 49.75], [-179.25, 49.85], [-179.5, 49.75], [-179.75, 49.85], [-180.0, 49.75], [-180.0, 53.04], [-179.5, 53.25]]]]}, "2015-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[178.47, 52.03], [178.82, 52.18], [178.97, 52.53], [179.5, 52.75], [179.8, 52.63], [179.97, 53.03], [180.0, 53.04], [180.0, 50.96], [179.68, 50.82], [179.53, 50.47], [179.0, 50.25], [178.47, 50.47], [178.25, 51.0], [178.35, 51.25], [178.25, 51.5], [178.47, 52.03]]], [[[-179.5, 53.25], [-179.25, 53.15], [-179.0, 53.25], [-178.75, 53.15], [-178.5, 53.25], [-177.97, 53.03], [-177.75, 52.5], [-177.87, 52.2], [-177.47, 52.03], [-177.25, 51.5], [-177.35, 51.25], [-177.25, 51.0], [-177.47, 50.47], [-178.0, 50.25], [-178.25, 50.35], [-178.5, 50.25], [-178.75, 50.35], [-179.0, 50.25], [-179.53, 50.47], [-179.75, 51.0], [-179.53, 51.53], [-179.0, 51.75], [-179.25, 51.85], [-179.5, 51.75], [-179.8, 51.88], [-179.85, 51.75], [-179.75, 51.5], [-179.97, 50.97], [-180.0, 50.96], [-180.0, 53.04], [-179.5, 53.25]], [[-178.75, 51.65], [-178.68, 51.68], [-178.62, 51.8], [-178.75, 51.85], [-179.0, 51.75], [-178.75, 51.65]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.401821521551824}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5410273436306472}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.915068566923424, 8.756841778787418, 8.352275674521422, 7.9251069270987955]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.277005855855634, 9.516566827110353, 9.113118009573213, 8.387309168981119]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6539942090433135, 1.634497635810501, 1.4030815802170855, 1.2605119697479277]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.401821521551824, 2.0146703680410383, 1.7516077274132158, 1.4123714807456054]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7152150516255942, 1.6577215681376913, 1.4328699438281964, 1.2798071282302095]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.331896259936727, 1.9188429733722612, 1.7408800233895527, 1.3656711038729847]}}