{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:48.239028", "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": "2025-Aug-26_to_2025-Sep-03_283.5_3.5"}, "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": 2025080002587}, "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 26 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 03 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 83288.03921788002}, "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": ["Colombia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": ["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": 3.5}, "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": 283.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "283.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 280.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 284.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.5, 4.75], [-79.2, 4.62], [-79.15, 4.75], [-79.25, 5.0], [-79.03, 5.53], [-78.5, 5.75], [-77.97, 5.53], [-77.8, 5.12], [-77.5, 5.25], [-76.97, 5.03], [-76.75, 4.5], [-76.96, 4.0], [-76.75, 3.5], [-76.96, 3.0], [-76.75, 2.5], [-76.96, 2.0], [-76.75, 1.5], [-76.97, 0.97], [-77.5, 0.75], [-78.03, 0.97], [-78.25, 1.5], [-78.12, 1.8], [-78.25, 1.85], [-78.5, 1.75], [-79.03, 1.97], [-79.25, 2.5], [-79.12, 2.8], [-79.25, 2.85], [-79.5, 2.75], [-80.03, 2.97], [-80.25, 3.5], [-80.15, 3.75], [-80.25, 4.0], [-80.03, 4.53], [-79.5, 4.75]], [[-78.18, 3.32], [-78.25, 3.35], [-78.32, 3.32], [-78.37, 3.2], [-78.25, 3.15], [-78.12, 3.2], [-78.18, 3.32]]], [[[-76.53, 4.47], [-76.75, 5.0], [-76.53, 5.53], [-76.0, 5.75], [-75.47, 5.53], [-75.25, 5.0], [-75.47, 4.47], [-76.0, 4.25], [-76.53, 4.47]]]]}, "2025-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.03, 4.53], [-79.5, 4.75], [-79.2, 4.62], [-79.15, 4.75], [-79.25, 5.0], [-79.03, 5.53], [-78.5, 5.75], [-77.97, 5.53], [-77.8, 5.12], [-77.5, 5.25], [-76.97, 5.03], [-76.8, 4.62], [-76.68, 4.68], [-76.65, 4.75], [-76.75, 5.0], [-76.53, 5.53], [-76.0, 5.75], [-75.47, 5.53], [-75.25, 5.0], [-75.35, 4.75], [-75.25, 4.5], [-75.35, 4.25], [-75.25, 4.0], [-75.47, 3.47], [-75.82, 3.32], [-75.85, 3.25], [-75.75, 3.0], [-75.97, 2.47], [-76.32, 2.32], [-76.35, 2.25], [-76.25, 2.0], [-76.47, 1.47], [-76.82, 1.32], [-76.97, 0.97], [-77.5, 0.75], [-78.03, 0.97], [-78.25, 1.5], [-78.12, 1.8], [-78.25, 1.85], [-78.5, 1.75], [-79.03, 1.97], [-79.25, 2.5], [-79.12, 2.8], [-79.25, 2.85], [-79.5, 2.75], [-80.03, 2.97], [-80.25, 3.5], [-80.15, 3.75], [-80.25, 4.0], [-80.03, 4.53]], [[-78.12, 3.2], [-78.18, 3.32], [-78.25, 3.35], [-78.32, 3.32], [-78.37, 3.2], [-78.25, 3.15], [-78.12, 3.2]]]]}, "2025-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.03, 4.53], [-79.5, 4.75], [-79.2, 4.62], [-79.15, 4.75], [-79.25, 5.0], [-79.03, 5.53], [-78.5, 5.75], [-77.97, 5.53], [-77.8, 5.12], [-77.5, 5.25], [-76.97, 5.03], [-76.8, 4.62], [-76.68, 4.68], [-76.65, 4.75], [-76.75, 5.0], [-76.53, 5.53], [-76.0, 5.75], [-75.47, 5.53], [-75.25, 5.0], [-75.35, 4.75], [-75.25, 4.5], [-75.35, 4.25], [-75.25, 4.0], [-75.47, 3.47], [-75.82, 3.32], [-75.85, 3.25], [-75.75, 3.0], [-75.97, 2.47], [-76.32, 2.32], [-76.35, 2.25], [-76.25, 2.0], [-76.47, 1.47], [-76.82, 1.32], [-76.97, 0.97], [-77.5, 0.75], [-78.03, 0.97], [-78.25, 1.5], [-78.12, 1.8], [-78.25, 1.85], [-78.5, 1.75], [-79.03, 1.97], [-79.25, 2.5], [-79.12, 2.8], [-79.25, 2.85], [-79.5, 2.75], [-80.03, 2.97], [-80.25, 3.5], [-80.15, 3.75], [-80.25, 4.0], [-80.03, 4.53]], [[-78.12, 3.2], [-78.18, 3.32], [-78.25, 3.35], [-78.32, 3.32], [-78.37, 3.2], [-78.25, 3.15], [-78.12, 3.2]]]]}, "2025-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.75, 3.0], [-77.65, 3.25], [-77.75, 3.5], [-77.53, 4.03], [-77.18, 4.18], [-77.03, 4.53], [-76.68, 4.68], [-76.65, 4.75], [-76.75, 5.0], [-76.53, 5.53], [-76.0, 5.75], [-75.47, 5.53], [-75.25, 5.0], [-75.35, 4.75], [-75.25, 4.5], [-75.35, 4.25], [-75.25, 4.0], [-75.47, 3.47], [-75.82, 3.32], [-75.85, 3.25], [-75.75, 3.0], [-75.97, 2.47], [-76.32, 2.32], [-76.35, 2.25], [-76.25, 2.0], [-76.47, 1.47], [-77.0, 1.25], [-77.53, 1.47], [-77.75, 2.0], [-77.65, 2.25], [-77.75, 2.5], [-77.65, 2.75], [-77.75, 3.0]]], [[[-80.03, 4.53], [-79.5, 4.75], [-78.97, 4.53], [-78.82, 4.18], [-78.47, 4.03], [-78.25, 3.5], [-78.47, 2.97], [-79.0, 2.75], [-79.53, 2.97], [-79.68, 3.32], [-80.03, 3.47], [-80.25, 4.0], [-80.03, 4.53]]]]}, "2025-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.03, 4.53], [-79.5, 4.75], [-78.97, 4.53], [-78.82, 4.18], [-78.47, 4.03], [-78.25, 3.5], [-78.47, 2.97], [-79.0, 2.75], [-79.53, 2.97], [-79.68, 3.32], [-80.03, 3.47], [-80.25, 4.0], [-80.03, 4.53]]], [[[-77.75, 4.0], [-77.53, 4.53], [-77.0, 4.75], [-76.75, 4.65], [-76.68, 4.68], [-76.65, 4.75], [-76.75, 5.0], [-76.53, 5.53], [-76.0, 5.75], [-75.47, 5.53], [-75.25, 5.0], [-75.35, 4.75], [-75.25, 4.5], [-75.47, 3.97], [-75.82, 3.82], [-75.85, 3.75], [-75.82, 3.68], [-75.47, 3.53], [-75.25, 3.0], [-75.47, 2.47], [-76.0, 2.25], [-76.5, 2.46], [-77.0, 2.25], [-77.53, 2.47], [-77.75, 3.0], [-77.65, 3.25], [-77.75, 3.5], [-77.65, 3.75], [-77.75, 4.0]]]]}, "2025-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.65, 3.75], [-77.75, 4.0], [-77.53, 4.53], [-77.0, 4.75], [-76.75, 4.65], [-76.68, 4.68], [-76.53, 5.03], [-76.0, 5.25], [-75.47, 5.03], [-75.25, 4.5], [-75.46, 4.0], [-75.25, 3.5], [-75.35, 3.25], [-75.25, 3.0], [-75.47, 2.47], [-76.0, 2.25], [-76.5, 2.46], [-77.0, 2.25], [-77.53, 2.47], [-77.75, 3.0], [-77.65, 3.25], [-77.75, 3.5], [-77.65, 3.75]]]]}, "2025-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.0, 4.75], [-76.47, 4.53], [-76.32, 4.18], [-76.25, 4.15], [-76.0, 4.25], [-75.47, 4.03], [-75.25, 3.5], [-75.35, 3.25], [-75.25, 3.0], [-75.47, 2.47], [-76.0, 2.25], [-76.53, 2.47], [-76.68, 2.82], [-76.75, 2.85], [-77.0, 2.75], [-77.53, 2.97], [-77.75, 3.5], [-77.65, 3.75], [-77.75, 4.0], [-77.53, 4.53], [-77.0, 4.75]]], [[[-76.03, 4.47], [-76.25, 5.0], [-76.03, 5.53], [-75.5, 5.75], [-74.97, 5.53], [-74.75, 5.0], [-74.97, 4.47], [-75.5, 4.25], [-76.03, 4.47]]]]}, "2025-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.03, 4.03], [-76.5, 4.25], [-76.25, 4.15], [-76.0, 4.25], [-75.47, 4.03], [-75.25, 3.5], [-75.35, 3.25], [-75.25, 3.0], [-75.47, 2.47], [-76.0, 2.25], [-76.53, 2.47], [-76.68, 2.82], [-77.03, 2.97], [-77.25, 3.5], [-77.03, 4.03]]], [[[-76.03, 4.47], [-76.25, 5.0], [-76.03, 5.53], [-75.5, 5.75], [-74.97, 5.53], [-74.75, 5.0], [-74.97, 4.47], [-75.5, 4.25], [-76.03, 4.47]]]]}, "2025-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.5, 5.75], [-74.97, 5.53], [-74.75, 5.0], [-74.97, 4.47], [-75.5, 4.25], [-76.03, 4.47], [-76.25, 5.0], [-76.03, 5.53], [-75.5, 5.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.842803454763157}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.234842697810967}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.452728344145328, 24.33286028875824, 24.15727690544685, 22.478912183973534, 22.49988606770836, 20.702464040120503, 19.252951134575767, 16.428193664550804, 15.284989929199241]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.702780659993493, 27.038179016113304, 26.61703262329104, 26.31434783935549, 26.436303710937523, 26.02640813191732, 26.074104563395224, 22.97645212809249, 15.284989929199241]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8199382716010258, 1.4213326473657408, 1.2580396911383613, 1.3684181214244926, 1.2611571294488726, 1.3069851969040087, 1.0956640457680653, 1.174021188099232, 0.855873537078935]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3827489388776826, 2.4152609568827756, 2.842803454763157, 2.2795299016617605, 2.0407544576631267, 1.7219418524656476, 1.2003238490770514, 1.4080891330353325, 0.855873537078935]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6860775389000686, 2.3226580577601146, 1.921380902461189, 1.8085748253888632, 1.812428697425141, 1.785846882231325, 1.5378358392179041, 1.6800478210384127, 1.2512310295349152]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.222880657078468, 3.35857664421881, 3.708026380931964, 2.6784084255153027, 2.426307785550269, 2.2660722824922934, 1.884362119818257, 2.28559615047222, 1.2512310295349152]}}