{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:39.768018", "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-Aug-01_to_2015-Aug-05_200.0_55.5"}, "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": 2015080001368}, "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": "August 01 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 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": 51479.75981398095}, "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", "N.W.North-America"]}, "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": ["Gulf of Alaska", "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": 55.5}, "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": 200.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "200.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 197.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 203.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-161.25, 55.5], [-161.03, 56.03], [-160.5, 56.25], [-160.25, 56.15], [-160.0, 56.25], [-159.47, 56.03], [-159.25, 55.5], [-159.47, 54.97], [-160.0, 54.75], [-160.25, 54.85], [-160.5, 54.75], [-161.03, 54.97], [-161.25, 55.5]]], [[[-157.75, 56.15], [-157.68, 56.18], [-157.53, 56.53], [-157.0, 56.75], [-156.47, 56.53], [-156.32, 56.18], [-155.97, 56.03], [-155.75, 55.5], [-155.97, 54.97], [-156.5, 54.75], [-156.75, 54.85], [-156.82, 54.82], [-156.97, 54.47], [-157.5, 54.25], [-158.0, 54.46], [-158.5, 54.25], [-159.03, 54.47], [-159.25, 55.0], [-159.03, 55.53], [-158.68, 55.68], [-158.53, 56.03], [-158.0, 56.25], [-157.75, 56.15]]]]}, "2015-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-162.68, 54.32], [-163.03, 54.47], [-163.25, 55.0], [-163.03, 55.53], [-162.5, 55.75], [-162.25, 55.65], [-162.0, 55.75], [-161.75, 55.65], [-161.5, 55.75], [-161.25, 55.65], [-161.18, 55.68], [-161.03, 56.03], [-160.5, 56.25], [-160.25, 56.15], [-160.0, 56.25], [-159.75, 56.15], [-159.5, 56.25], [-159.25, 56.15], [-159.0, 56.25], [-158.5, 56.04], [-158.0, 56.25], [-157.75, 56.15], [-157.68, 56.18], [-157.53, 56.53], [-157.0, 56.75], [-156.47, 56.53], [-156.32, 56.18], [-155.97, 56.03], [-155.75, 55.5], [-155.97, 54.97], [-156.5, 54.75], [-156.75, 54.85], [-156.82, 54.82], [-156.97, 54.47], [-157.5, 54.25], [-158.0, 54.46], [-158.5, 54.25], [-158.75, 54.35], [-159.0, 54.25], [-159.25, 54.35], [-159.32, 54.32], [-159.47, 53.97], [-160.0, 53.75], [-160.25, 53.85], [-160.32, 53.82], [-160.47, 53.47], [-161.0, 53.25], [-161.25, 53.35], [-161.5, 53.25], [-161.75, 53.35], [-161.82, 53.32], [-161.97, 52.97], [-162.5, 52.75], [-163.03, 52.97], [-163.25, 53.5], [-163.03, 54.03], [-162.68, 54.18], [-162.65, 54.25], [-162.68, 54.32]]]]}, "2015-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-162.68, 54.32], [-163.03, 54.47], [-163.25, 55.0], [-163.03, 55.53], [-162.5, 55.75], [-162.25, 55.65], [-162.0, 55.75], [-161.75, 55.65], [-161.68, 55.68], [-161.53, 56.03], [-161.0, 56.25], [-160.75, 56.15], [-160.5, 56.25], [-160.25, 56.15], [-160.0, 56.25], [-159.75, 56.15], [-159.5, 56.25], [-159.25, 56.15], [-159.0, 56.25], [-158.5, 56.04], [-158.0, 56.25], [-157.75, 56.15], [-157.68, 56.18], [-157.53, 56.53], [-157.0, 56.75], [-156.47, 56.53], [-156.32, 56.18], [-155.97, 56.03], [-155.75, 55.5], [-155.97, 54.97], [-156.5, 54.75], [-156.75, 54.85], [-156.82, 54.82], [-156.97, 54.47], [-157.5, 54.25], [-158.0, 54.46], [-158.5, 54.25], [-158.75, 54.35], [-159.0, 54.25], [-159.25, 54.35], [-159.32, 54.32], [-159.47, 53.97], [-160.0, 53.75], [-160.25, 53.85], [-160.32, 53.82], [-160.47, 53.47], [-161.0, 53.25], [-161.25, 53.35], [-161.5, 53.25], [-161.75, 53.35], [-161.82, 53.32], [-161.97, 52.97], [-162.5, 52.75], [-163.03, 52.97], [-163.25, 53.5], [-163.03, 54.03], [-162.68, 54.18], [-162.65, 54.25], [-162.68, 54.32]]]]}, "2015-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-162.68, 54.32], [-163.03, 54.47], [-163.25, 55.0], [-163.03, 55.53], [-162.5, 55.75], [-162.25, 55.65], [-162.0, 55.75], [-161.75, 55.65], [-161.68, 55.68], [-161.53, 56.03], [-161.0, 56.25], [-160.75, 56.15], [-160.5, 56.25], [-160.25, 56.15], [-160.0, 56.25], [-159.75, 56.15], [-159.5, 56.25], [-159.25, 56.15], [-159.0, 56.25], [-158.47, 56.03], [-158.25, 55.5], [-158.35, 55.25], [-158.25, 55.0], [-158.47, 54.47], [-159.0, 54.25], [-159.25, 54.35], [-159.32, 54.32], [-159.47, 53.97], [-160.0, 53.75], [-160.25, 53.85], [-160.32, 53.82], [-160.47, 53.47], [-161.0, 53.25], [-161.25, 53.35], [-161.5, 53.25], [-161.75, 53.35], [-161.82, 53.32], [-161.97, 52.97], [-162.5, 52.75], [-163.03, 52.97], [-163.25, 53.5], [-163.03, 54.03], [-162.68, 54.18], [-162.65, 54.25], [-162.68, 54.32]]]]}, "2015-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-162.53, 54.47], [-162.75, 55.0], [-162.53, 55.53], [-162.0, 55.75], [-161.75, 55.65], [-161.68, 55.68], [-161.53, 56.03], [-161.0, 56.25], [-160.75, 56.15], [-160.5, 56.25], [-160.25, 56.15], [-160.0, 56.25], [-159.75, 56.15], [-159.5, 56.25], [-158.97, 56.03], [-158.75, 55.5], [-158.97, 54.97], [-159.32, 54.82], [-159.35, 54.75], [-159.25, 54.5], [-159.47, 53.97], [-160.0, 53.75], [-160.25, 53.85], [-160.5, 53.75], [-161.03, 53.97], [-161.18, 54.32], [-161.25, 54.35], [-161.5, 54.25], [-161.75, 54.35], [-162.0, 54.25], [-162.53, 54.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.652521474975231}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9593277829148847}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.208699090953303, 13.575641294274362, 13.456365910665227, 13.314122169615587, 13.272429945731062]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.420473351079124, 14.66348160240824, 13.883489104238322, 13.94510717024798, 13.750360548015863]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5444591182189304, 2.1384849540157456, 1.9768316642697017, 1.9309749162493945, 1.8532884828049367]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.801330288397594, 2.652521474975231, 2.2972097528445943, 2.5403479117429697, 2.2206893145741446]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4283862270874548, 1.9081374358907226, 1.7329509063632447, 1.6504669177269313, 1.526236166158781]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5158038891627335, 2.3948917946708255, 1.984226603332681, 2.119241549548775, 1.7896951136404158]}}