{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:04.304284", "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": "2026-Jan-24_to_2026-Jan-26_141.5_-76.5"}, "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": 2026010002295}, "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 24 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 26 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 114418.33837624305}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": []}, "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": -76.5}, "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": 141.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 133.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 152.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -79.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -76.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.75, -77.0], [132.97, -76.47], [133.5, -76.25], [133.75, -76.35], [134.0, -76.25], [134.25, -76.35], [134.5, -76.25], [134.75, -76.35], [135.0, -76.25], [135.25, -76.35], [135.5, -76.25], [135.75, -76.35], [136.0, -76.25], [136.25, -76.35], [136.32, -76.32], [136.47, -75.97], [137.0, -75.75], [137.25, -75.85], [137.5, -75.75], [137.75, -75.85], [138.0, -75.75], [138.5, -75.96], [139.0, -75.75], [139.25, -75.85], [139.5, -75.75], [139.75, -75.85], [140.0, -75.75], [140.25, -75.85], [140.5, -75.75], [140.75, -75.85], [141.0, -75.75], [141.25, -75.85], [141.5, -75.75], [141.75, -75.85], [142.0, -75.75], [142.25, -75.85], [142.5, -75.75], [142.75, -75.85], [143.0, -75.75], [143.25, -75.85], [143.5, -75.75], [143.75, -75.85], [144.0, -75.75], [144.25, -75.85], [144.5, -75.75], [144.75, -75.85], [145.0, -75.75], [145.5, -75.96], [146.0, -75.75], [146.53, -75.97], [146.68, -76.32], [146.75, -76.35], [147.0, -76.25], [147.25, -76.35], [147.5, -76.25], [148.03, -76.47], [148.18, -76.82], [148.25, -76.85], [148.5, -76.75], [148.75, -76.85], [149.0, -76.75], [149.53, -76.97], [149.68, -77.32], [149.75, -77.35], [150.0, -77.25], [150.25, -77.35], [150.5, -77.25], [150.75, -77.35], [151.0, -77.25], [151.25, -77.35], [151.5, -77.25], [151.75, -77.35], [152.0, -77.25], [152.25, -77.35], [152.5, -77.25], [153.03, -77.47], [153.25, -78.0], [153.15, -78.25], [153.25, -78.5], [153.03, -79.03], [152.5, -79.25], [152.25, -79.15], [152.0, -79.25], [151.75, -79.15], [151.5, -79.25], [151.25, -79.15], [151.0, -79.25], [150.75, -79.15], [150.5, -79.25], [150.25, -79.15], [150.18, -79.18], [150.03, -79.53], [149.5, -79.75], [149.25, -79.65], [149.0, -79.75], [148.75, -79.65], [148.5, -79.75], [148.25, -79.65], [148.0, -79.75], [147.75, -79.65], [147.5, -79.75], [147.25, -79.65], [147.0, -79.75], [146.75, -79.65], [146.5, -79.75], [146.25, -79.65], [146.0, -79.75], [145.75, -79.65], [145.5, -79.75], [145.25, -79.65], [145.0, -79.75], [144.75, -79.65], [144.5, -79.75], [144.25, -79.65], [144.0, -79.75], [143.75, -79.65], [143.5, -79.75], [143.25, -79.65], [143.0, -79.75], [142.75, -79.65], [142.5, -79.75], [142.25, -79.65], [142.0, -79.75], [141.75, -79.65], [141.5, -79.75], [141.25, -79.65], [141.0, -79.75], [140.75, -79.65], [140.5, -79.75], [140.25, -79.65], [140.0, -79.75], [139.75, -79.65], [139.5, -79.75], [139.25, -79.65], [139.0, -79.75], [138.75, -79.65], [138.5, -79.75], [138.25, -79.65], [138.0, -79.75], [137.75, -79.65], [137.5, -79.75], [137.25, -79.65], [137.0, -79.75], [136.75, -79.65], [136.5, -79.75], [136.25, -79.65], [136.0, -79.75], [135.47, -79.53], [135.25, -79.0], [135.35, -78.75], [135.32, -78.68], [135.25, -78.65], [135.0, -78.75], [134.75, -78.65], [134.5, -78.75], [133.97, -78.53], [133.82, -78.18], [133.47, -78.03], [133.32, -77.68], [132.97, -77.53], [132.75, -77.0]]]]}, "2026-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.75, -77.0], [132.97, -76.47], [133.5, -76.25], [133.75, -76.35], [134.0, -76.25], [134.25, -76.35], [134.5, -76.25], [134.75, -76.35], [135.0, -76.25], [135.25, -76.35], [135.5, -76.25], [135.75, -76.35], [136.0, -76.25], [136.25, -76.35], [136.32, -76.32], [136.47, -75.97], [137.0, -75.75], [137.25, -75.85], [137.5, -75.75], [137.75, -75.85], [138.0, -75.75], [138.5, -75.96], [139.0, -75.75], [139.25, -75.85], [139.5, -75.75], [139.75, -75.85], [140.0, -75.75], [140.25, -75.85], [140.5, -75.75], [140.75, -75.85], [141.0, -75.75], [141.25, -75.85], [141.5, -75.75], [141.75, -75.85], [142.0, -75.75], [142.25, -75.85], [142.5, -75.75], [142.75, -75.85], [143.0, -75.75], [143.25, -75.85], [143.5, -75.75], [143.75, -75.85], [144.0, -75.75], [144.25, -75.85], [144.5, -75.75], [144.75, -75.85], [145.0, -75.75], [145.5, -75.96], [146.0, -75.75], [146.53, -75.97], [146.68, -76.32], [146.75, -76.35], [147.0, -76.25], [147.25, -76.35], [147.5, -76.25], [148.03, -76.47], [148.18, -76.82], [148.25, -76.85], [148.5, -76.75], [148.75, -76.85], [149.0, -76.75], [149.53, -76.97], [149.68, -77.32], [149.75, -77.35], [150.0, -77.25], [150.25, -77.35], [150.5, -77.25], [150.75, -77.35], [151.0, -77.25], [151.25, -77.35], [151.5, -77.25], [151.75, -77.35], [152.0, -77.25], [152.25, -77.35], [152.5, -77.25], [153.03, -77.47], [153.25, -78.0], [153.15, -78.25], [153.25, -78.5], [153.03, -79.03], [152.5, -79.25], [152.25, -79.15], [152.0, -79.25], [151.75, -79.15], [151.5, -79.25], [151.25, -79.15], [151.0, -79.25], [150.75, -79.15], [150.5, -79.25], [150.25, -79.15], [150.18, -79.18], [150.03, -79.53], [149.5, -79.75], [149.25, -79.65], [149.0, -79.75], [148.75, -79.65], [148.5, -79.75], [148.25, -79.65], [148.0, -79.75], [147.75, -79.65], [147.5, -79.75], [147.25, -79.65], [147.0, -79.75], [146.75, -79.65], [146.5, -79.75], [146.25, -79.65], [146.0, -79.75], [145.75, -79.65], [145.5, -79.75], [145.25, -79.65], [145.0, -79.75], [144.75, -79.65], [144.5, -79.75], [144.25, -79.65], [144.0, -79.75], [143.75, -79.65], [143.5, -79.75], [143.25, -79.65], [143.0, -79.75], [142.75, -79.65], [142.5, -79.75], [142.25, -79.65], [142.0, -79.75], [141.75, -79.65], [141.5, -79.75], [141.25, -79.65], [141.0, -79.75], [140.75, -79.65], [140.5, -79.75], [140.25, -79.65], [140.0, -79.75], [139.75, -79.65], [139.5, -79.75], [139.25, -79.65], [139.0, -79.75], [138.75, -79.65], [138.5, -79.75], [138.25, -79.65], [138.0, -79.75], [137.75, -79.65], [137.5, -79.75], [137.25, -79.65], [137.0, -79.75], [136.75, -79.65], [136.5, -79.75], [136.25, -79.65], [136.0, -79.75], [135.47, -79.53], [135.25, -79.0], [135.35, -78.75], [135.32, -78.68], [135.25, -78.65], [135.0, -78.75], [134.75, -78.65], [134.5, -78.75], [133.97, -78.53], [133.82, -78.18], [133.47, -78.03], [133.32, -77.68], [132.97, -77.53], [132.75, -77.0]]]]}, "2026-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.75, -77.0], [132.97, -76.47], [133.5, -76.25], [133.75, -76.35], [134.0, -76.25], [134.25, -76.35], [134.5, -76.25], [134.75, -76.35], [135.0, -76.25], [135.25, -76.35], [135.5, -76.25], [135.75, -76.35], [136.0, -76.25], [136.25, -76.35], [136.32, -76.32], [136.47, -75.97], [137.0, -75.75], [137.25, -75.85], [137.5, -75.75], [137.75, -75.85], [138.0, -75.75], [138.5, -75.96], [139.0, -75.75], [139.25, -75.85], [139.5, -75.75], [139.75, -75.85], [140.0, -75.75], [140.25, -75.85], [140.5, -75.75], [140.75, -75.85], [141.0, -75.75], [141.25, -75.85], [141.5, -75.75], [141.75, -75.85], [142.0, -75.75], [142.25, -75.85], [142.5, -75.75], [142.75, -75.85], [143.0, -75.75], [143.25, -75.85], [143.5, -75.75], [143.75, -75.85], [144.0, -75.75], [144.25, -75.85], [144.5, -75.75], [144.75, -75.85], [145.0, -75.75], [145.5, -75.96], [146.0, -75.75], [146.53, -75.97], [146.68, -76.32], [146.75, -76.35], [147.0, -76.25], [147.25, -76.35], [147.5, -76.25], [148.03, -76.47], [148.18, -76.82], [148.25, -76.85], [148.5, -76.75], [148.75, -76.85], [149.0, -76.75], [149.53, -76.97], [149.68, -77.32], [149.75, -77.35], [150.0, -77.25], [150.25, -77.35], [150.5, -77.25], [150.75, -77.35], [151.0, -77.25], [151.25, -77.35], [151.5, -77.25], [151.75, -77.35], [152.0, -77.25], [152.25, -77.35], [152.5, -77.25], [153.03, -77.47], [153.25, -78.0], [153.15, -78.25], [153.25, -78.5], [153.03, -79.03], [152.5, -79.25], [152.25, -79.15], [152.0, -79.25], [151.75, -79.15], [151.5, -79.25], [151.25, -79.15], [151.0, -79.25], [150.75, -79.15], [150.5, -79.25], [150.25, -79.15], [150.18, -79.18], [150.03, -79.53], [149.5, -79.75], [149.25, -79.65], [149.0, -79.75], [148.75, -79.65], [148.5, -79.75], [148.25, -79.65], [148.0, -79.75], [147.75, -79.65], [147.5, -79.75], [147.25, -79.65], [147.0, -79.75], [146.75, -79.65], [146.5, -79.75], [146.25, -79.65], [146.0, -79.75], [145.75, -79.65], [145.5, -79.75], [145.25, -79.65], [145.0, -79.75], [144.75, -79.65], [144.5, -79.75], [144.25, -79.65], [144.0, -79.75], [143.75, -79.65], [143.5, -79.75], [143.25, -79.65], [143.0, -79.75], [142.75, -79.65], [142.5, -79.75], [142.25, -79.65], [142.0, -79.75], [141.75, -79.65], [141.5, -79.75], [141.25, -79.65], [141.0, -79.75], [140.75, -79.65], [140.5, -79.75], [140.25, -79.65], [140.0, -79.75], [139.75, -79.65], [139.5, -79.75], [139.25, -79.65], [139.0, -79.75], [138.75, -79.65], [138.5, -79.75], [138.25, -79.65], [138.0, -79.75], [137.75, -79.65], [137.5, -79.75], [137.25, -79.65], [137.0, -79.75], [136.75, -79.65], [136.5, -79.75], [136.25, -79.65], [136.0, -79.75], [135.47, -79.53], [135.25, -79.0], [135.35, -78.75], [135.32, -78.68], [135.25, -78.65], [135.0, -78.75], [134.75, -78.65], [134.5, -78.75], [133.97, -78.53], [133.82, -78.18], [133.47, -78.03], [133.32, -77.68], [132.97, -77.53], [132.75, -77.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.057691990192495}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.7864492766451554}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-26.35334977814651, -26.449467664776336, -25.87639789003319]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-23.090482457478828, -23.088508987426735, -23.452480061848945]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.311770666295573, 3.539972371754175, 4.507604791885719]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.7884061921938326, 4.178594213338101, 6.057691990192495]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.284940713920718, 1.4239213576896945, 1.89203864338094]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.421130406389576, 1.6937962020403354, 2.5444817964337694]}}