{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:50:52.986459", "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": "2024-Jan-09_to_2024-Jan-13_201.0_49.0"}, "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": 2024010001347}, "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": "January 09 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 13 2024"}, "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": 267796.107492481}, "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": ["Bering Sea", "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": 49.0}, "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": 201.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "201.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 196.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 206.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-160.53, 51.53], [-160.0, 51.75], [-159.47, 51.53], [-159.32, 51.18], [-159.25, 51.15], [-159.0, 51.25], [-158.75, 51.15], [-158.5, 51.25], [-158.25, 51.15], [-158.0, 51.25], [-157.75, 51.15], [-157.5, 51.25], [-157.25, 51.15], [-157.0, 51.25], [-156.75, 51.15], [-156.5, 51.25], [-155.97, 51.03], [-155.82, 50.68], [-155.75, 50.65], [-155.5, 50.75], [-155.25, 50.65], [-155.0, 50.75], [-154.47, 50.53], [-154.32, 50.18], [-153.97, 50.03], [-153.75, 49.5], [-153.85, 49.25], [-153.75, 49.0], [-153.85, 48.75], [-153.75, 48.5], [-153.85, 48.25], [-153.82, 48.18], [-153.47, 48.03], [-153.25, 47.5], [-153.35, 47.25], [-153.32, 47.18], [-152.97, 47.03], [-152.75, 46.5], [-152.97, 45.97], [-153.5, 45.75], [-153.75, 45.85], [-154.0, 45.75], [-154.53, 45.97], [-154.68, 46.32], [-154.75, 46.35], [-155.0, 46.25], [-155.53, 46.47], [-155.68, 46.82], [-155.75, 46.85], [-156.0, 46.75], [-156.53, 46.97], [-156.68, 47.32], [-156.75, 47.35], [-157.0, 47.25], [-157.53, 47.47], [-157.68, 47.82], [-157.75, 47.85], [-158.0, 47.75], [-158.53, 47.97], [-158.68, 48.32], [-158.75, 48.35], [-159.0, 48.25], [-159.53, 48.47], [-159.68, 48.82], [-160.03, 48.97], [-160.25, 49.5], [-160.15, 49.75], [-160.18, 49.82], [-160.53, 49.97], [-160.75, 50.5], [-160.65, 50.75], [-160.75, 51.0], [-160.53, 51.53]]]]}, "2024-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-163.75, 55.5], [-163.53, 56.03], [-163.0, 56.25], [-162.75, 56.15], [-162.5, 56.25], [-162.25, 56.15], [-162.0, 56.25], [-161.75, 56.15], [-161.5, 56.25], [-160.97, 56.03], [-160.82, 55.68], [-160.47, 55.53], [-160.32, 55.18], [-160.25, 55.15], [-160.0, 55.25], [-159.47, 55.03], [-159.32, 54.68], [-159.25, 54.65], [-159.0, 54.75], [-158.47, 54.53], [-158.32, 54.18], [-157.97, 54.03], [-157.82, 53.68], [-157.75, 53.65], [-157.5, 53.75], [-156.97, 53.53], [-156.75, 53.0], [-156.85, 52.75], [-156.82, 52.68], [-156.75, 52.65], [-156.5, 52.75], [-155.97, 52.53], [-155.82, 52.18], [-155.47, 52.03], [-155.32, 51.68], [-154.97, 51.53], [-154.75, 51.0], [-154.87, 50.7], [-154.47, 50.53], [-154.32, 50.18], [-153.97, 50.03], [-153.75, 49.5], [-153.85, 49.25], [-153.75, 49.0], [-153.85, 48.75], [-153.75, 48.5], [-153.85, 48.25], [-153.82, 48.18], [-153.47, 48.03], [-153.25, 47.5], [-153.35, 47.25], [-153.32, 47.18], [-152.97, 47.03], [-152.75, 46.5], [-152.97, 45.97], [-153.5, 45.75], [-153.75, 45.85], [-154.0, 45.75], [-154.53, 45.97], [-154.68, 46.32], [-154.75, 46.35], [-155.0, 46.25], [-155.53, 46.47], [-155.68, 46.82], [-155.75, 46.85], [-156.0, 46.75], [-156.53, 46.97], [-156.68, 47.32], [-156.75, 47.35], [-157.0, 47.25], [-157.53, 47.47], [-157.68, 47.82], [-157.75, 47.85], [-158.0, 47.75], [-158.53, 47.97], [-158.68, 48.32], [-158.75, 48.35], [-159.0, 48.25], [-159.53, 48.47], [-159.68, 48.82], [-160.03, 48.97], [-160.25, 49.5], [-160.15, 49.75], [-160.18, 49.82], [-160.53, 49.97], [-160.75, 50.5], [-160.65, 50.75], [-160.75, 51.0], [-160.65, 51.25], [-160.68, 51.32], [-161.03, 51.47], [-161.18, 51.82], [-161.53, 51.97], [-161.68, 52.32], [-162.03, 52.47], [-162.18, 52.82], [-162.25, 52.85], [-162.5, 52.75], [-163.03, 52.97], [-163.25, 53.5], [-163.04, 54.0], [-163.25, 54.5], [-163.12, 54.8], [-163.53, 54.97], [-163.75, 55.5]]]]}, "2024-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-163.75, 55.5], [-163.53, 56.03], [-163.0, 56.25], [-162.75, 56.15], [-162.5, 56.25], [-162.25, 56.15], [-162.0, 56.25], [-161.75, 56.15], [-161.5, 56.25], [-160.97, 56.03], [-160.82, 55.68], [-160.47, 55.53], [-160.32, 55.18], [-160.25, 55.15], [-160.0, 55.25], [-159.47, 55.03], [-159.32, 54.68], [-159.25, 54.65], [-159.0, 54.75], [-158.47, 54.53], [-158.32, 54.18], [-157.97, 54.03], [-157.82, 53.68], [-157.75, 53.65], [-157.5, 53.75], [-156.97, 53.53], [-156.75, 53.0], [-156.85, 52.75], [-156.82, 52.68], [-156.75, 52.65], [-156.5, 52.75], [-155.97, 52.53], [-155.82, 52.18], [-155.47, 52.03], [-155.32, 51.68], [-154.97, 51.53], [-154.75, 51.0], [-154.87, 50.7], [-154.47, 50.53], [-154.32, 50.18], [-153.97, 50.03], [-153.75, 49.5], [-153.85, 49.25], [-153.75, 49.0], [-153.85, 48.75], [-153.75, 48.5], [-153.85, 48.25], [-153.82, 48.18], [-153.47, 48.03], [-153.25, 47.5], [-153.35, 47.25], [-153.32, 47.18], [-152.97, 47.03], [-152.75, 46.5], [-152.97, 45.97], [-153.5, 45.75], [-153.75, 45.85], [-154.0, 45.75], [-154.53, 45.97], [-154.68, 46.32], [-154.75, 46.35], [-155.0, 46.25], [-155.53, 46.47], [-155.68, 46.82], [-155.75, 46.85], [-156.0, 46.75], [-156.53, 46.97], [-156.68, 47.32], [-156.75, 47.35], [-157.0, 47.25], [-157.53, 47.47], [-157.68, 47.82], [-157.75, 47.85], [-158.0, 47.75], [-158.53, 47.97], [-158.68, 48.32], [-158.75, 48.35], [-159.0, 48.25], [-159.53, 48.47], [-159.68, 48.82], [-160.03, 48.97], [-160.25, 49.5], [-160.15, 49.75], [-160.18, 49.82], [-160.53, 49.97], [-160.75, 50.5], [-160.65, 50.75], [-160.75, 51.0], [-160.65, 51.25], [-160.68, 51.32], [-161.03, 51.47], [-161.18, 51.82], [-161.53, 51.97], [-161.68, 52.32], [-162.03, 52.47], [-162.18, 52.82], [-162.25, 52.85], [-162.5, 52.75], [-163.03, 52.97], [-163.25, 53.5], [-163.04, 54.0], [-163.25, 54.5], [-163.12, 54.8], [-163.53, 54.97], [-163.75, 55.5]]]]}, "2024-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-163.75, 55.5], [-163.53, 56.03], [-163.0, 56.25], [-162.75, 56.15], [-162.5, 56.25], [-162.25, 56.15], [-162.0, 56.25], [-161.75, 56.15], [-161.5, 56.25], [-160.97, 56.03], [-160.82, 55.68], [-160.47, 55.53], [-160.32, 55.18], [-160.25, 55.15], [-160.0, 55.25], [-159.47, 55.03], [-159.32, 54.68], [-159.25, 54.65], [-159.0, 54.75], [-158.47, 54.53], [-158.32, 54.18], [-157.97, 54.03], [-157.82, 53.68], [-157.75, 53.65], [-157.5, 53.75], [-156.97, 53.53], [-156.75, 53.0], [-156.85, 52.75], [-156.82, 52.68], [-156.75, 52.65], [-156.5, 52.75], [-155.97, 52.53], [-155.82, 52.18], [-155.47, 52.03], [-155.32, 51.68], [-154.97, 51.53], [-154.75, 51.0], [-154.97, 50.47], [-155.32, 50.32], [-155.35, 50.25], [-155.25, 50.0], [-155.35, 49.75], [-155.25, 49.5], [-155.47, 48.97], [-155.82, 48.82], [-155.97, 48.47], [-156.32, 48.32], [-156.35, 48.25], [-156.25, 48.0], [-156.47, 47.47], [-157.0, 47.25], [-157.53, 47.47], [-157.68, 47.82], [-157.75, 47.85], [-158.0, 47.75], [-158.53, 47.97], [-158.68, 48.32], [-158.75, 48.35], [-159.0, 48.25], [-159.53, 48.47], [-159.68, 48.82], [-160.03, 48.97], [-160.25, 49.5], [-160.15, 49.75], [-160.18, 49.82], [-160.53, 49.97], [-160.75, 50.5], [-160.65, 50.75], [-160.75, 51.0], [-160.65, 51.25], [-160.68, 51.32], [-161.03, 51.47], [-161.18, 51.82], [-161.53, 51.97], [-161.68, 52.32], [-162.03, 52.47], [-162.18, 52.82], [-162.25, 52.85], [-162.5, 52.75], [-163.03, 52.97], [-163.25, 53.5], [-163.04, 54.0], [-163.25, 54.5], [-163.12, 54.8], [-163.53, 54.97], [-163.75, 55.5]]]]}, "2024-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-163.53, 54.97], [-163.75, 55.5], [-163.53, 56.03], [-163.0, 56.25], [-162.75, 56.15], [-162.5, 56.25], [-162.25, 56.15], [-162.0, 56.25], [-161.75, 56.15], [-161.5, 56.25], [-160.97, 56.03], [-160.82, 55.68], [-160.47, 55.53], [-160.32, 55.18], [-160.25, 55.15], [-160.0, 55.25], [-159.47, 55.03], [-159.32, 54.68], [-159.25, 54.65], [-159.0, 54.75], [-158.47, 54.53], [-158.32, 54.18], [-157.97, 54.03], [-157.82, 53.68], [-157.75, 53.65], [-157.5, 53.75], [-156.97, 53.53], [-156.75, 53.0], [-156.85, 52.75], [-156.82, 52.68], [-156.75, 52.65], [-156.5, 52.75], [-155.97, 52.53], [-155.82, 52.18], [-155.47, 52.03], [-155.32, 51.68], [-154.97, 51.53], [-154.75, 51.0], [-154.97, 50.47], [-155.32, 50.32], [-155.35, 50.25], [-155.25, 50.0], [-155.35, 49.75], [-155.25, 49.5], [-155.47, 48.97], [-155.82, 48.82], [-155.97, 48.47], [-156.32, 48.32], [-156.47, 47.97], [-157.0, 47.75], [-157.25, 47.85], [-157.5, 47.75], [-157.75, 47.85], [-158.0, 47.75], [-158.53, 47.97], [-158.68, 48.32], [-158.75, 48.35], [-159.0, 48.25], [-159.53, 48.47], [-159.68, 48.82], [-160.03, 48.97], [-160.25, 49.5], [-160.15, 49.75], [-160.18, 49.82], [-160.53, 49.97], [-160.75, 50.5], [-160.65, 50.75], [-160.75, 51.0], [-160.65, 51.25], [-160.68, 51.32], [-161.03, 51.47], [-161.25, 52.0], [-161.15, 52.25], [-161.25, 52.5], [-161.15, 52.75], [-161.25, 53.0], [-161.15, 53.25], [-161.18, 53.32], [-161.25, 53.35], [-161.5, 53.25], [-162.03, 53.47], [-162.18, 53.82], [-162.53, 53.97], [-162.75, 54.5], [-162.65, 54.75], [-162.68, 54.82], [-162.75, 54.85], [-163.0, 54.75], [-163.53, 54.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.522894407416857}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.783954368845933}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.544920505424557, 6.846443299927557, 6.405974929621209, 5.664522855183179, 5.798163027278235]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.034559954088934, 8.988698735805428, 8.84989392425507, 7.421547637655806, 7.149772429898803]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.678878410160279, 3.1954067963079904, 2.7563384535067343, 2.5118253015045497, 2.6164542781705458]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2728704887558706, 6.473181949218258, 7.522894407416857, 5.66623901450788, 6.938777724330237]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5566514539457728, 1.5906164090585018, 1.3731788470906092, 1.2181993434147662, 1.2730668239481566]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9777646866501442, 2.098199810221331, 1.7279266878697865, 1.7307108396777233, 1.5525896443425535]}}