{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:42.525758", "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-Oct-30_to_2024-Nov-04_220.5_60.0"}, "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": 2024100002556}, "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 30 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 04 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 55284.466947861}, "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": ["Canada", "United States"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": []}, "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": 60.0}, "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": 220.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "220.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 216.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 223.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-144.53, 60.47], [-144.75, 61.0], [-144.53, 61.53], [-144.0, 61.75], [-143.75, 61.65], [-143.68, 61.68], [-143.53, 62.03], [-143.0, 62.25], [-142.47, 62.03], [-142.32, 61.68], [-142.0, 61.54], [-141.5, 61.75], [-141.25, 61.65], [-141.0, 61.75], [-140.5, 61.54], [-140.0, 61.75], [-139.47, 61.53], [-139.32, 61.18], [-139.25, 61.15], [-139.0, 61.25], [-138.75, 61.15], [-138.5, 61.25], [-138.25, 61.15], [-138.0, 61.25], [-137.47, 61.03], [-137.25, 60.5], [-137.35, 60.25], [-137.25, 60.0], [-137.35, 59.75], [-137.32, 59.68], [-137.25, 59.65], [-137.0, 59.75], [-136.47, 59.53], [-136.25, 59.0], [-136.35, 58.75], [-136.25, 58.5], [-136.47, 57.97], [-137.0, 57.75], [-137.53, 57.97], [-137.68, 58.32], [-137.75, 58.35], [-138.0, 58.25], [-138.25, 58.35], [-138.5, 58.25], [-139.03, 58.47], [-139.18, 58.82], [-139.53, 58.97], [-139.68, 59.32], [-139.75, 59.35], [-140.0, 59.25], [-140.25, 59.35], [-140.5, 59.25], [-140.75, 59.35], [-141.0, 59.25], [-141.25, 59.35], [-141.5, 59.25], [-142.03, 59.47], [-142.18, 59.82], [-142.25, 59.85], [-142.5, 59.75], [-142.75, 59.85], [-143.0, 59.75], [-143.25, 59.85], [-143.5, 59.75], [-144.03, 59.97], [-144.18, 60.32], [-144.53, 60.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-143.5, 59.75], [-144.03, 59.97], [-144.25, 60.5], [-144.03, 61.03], [-143.5, 61.25], [-143.0, 61.04], [-142.5, 61.25], [-142.25, 61.15], [-142.18, 61.18], [-142.03, 61.53], [-141.5, 61.75], [-141.25, 61.65], [-141.0, 61.75], [-140.47, 61.53], [-140.32, 61.18], [-140.25, 61.15], [-140.0, 61.25], [-139.47, 61.03], [-139.32, 60.68], [-138.97, 60.53], [-138.82, 60.18], [-138.47, 60.03], [-138.3, 59.63], [-138.0, 59.75], [-137.75, 59.65], [-137.5, 59.75], [-137.25, 59.65], [-137.0, 59.75], [-136.47, 59.53], [-136.25, 59.0], [-136.35, 58.75], [-136.25, 58.5], [-136.47, 57.97], [-137.0, 57.75], [-137.53, 57.97], [-137.68, 58.32], [-137.75, 58.35], [-138.0, 58.25], [-138.53, 58.47], [-138.7, 58.88], [-139.0, 58.75], [-139.53, 58.97], [-139.68, 59.32], [-139.75, 59.35], [-140.0, 59.25], [-140.25, 59.35], [-140.5, 59.25], [-140.75, 59.35], [-141.0, 59.25], [-141.25, 59.35], [-141.5, 59.25], [-142.03, 59.47], [-142.18, 59.82], [-142.25, 59.85], [-142.5, 59.75], [-143.0, 59.96], [-143.5, 59.75]]]]}, "2024-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-144.53, 60.47], [-144.75, 61.0], [-144.53, 61.53], [-144.0, 61.75], [-143.75, 61.65], [-143.68, 61.68], [-143.53, 62.03], [-143.0, 62.25], [-142.47, 62.03], [-142.32, 61.68], [-142.0, 61.54], [-141.5, 61.75], [-141.25, 61.65], [-141.0, 61.75], [-140.5, 61.54], [-140.0, 61.75], [-139.47, 61.53], [-139.32, 61.18], [-139.25, 61.15], [-139.0, 61.25], [-138.75, 61.15], [-138.5, 61.25], [-137.97, 61.03], [-137.75, 60.5], [-137.85, 60.25], [-137.82, 60.18], [-137.47, 60.03], [-137.32, 59.68], [-137.25, 59.65], [-137.0, 59.75], [-136.47, 59.53], [-136.25, 59.0], [-136.35, 58.75], [-136.25, 58.5], [-136.47, 57.97], [-137.0, 57.75], [-137.53, 57.97], [-137.68, 58.32], [-137.75, 58.35], [-138.0, 58.25], [-138.25, 58.35], [-138.5, 58.25], [-139.03, 58.47], [-139.18, 58.82], [-139.53, 58.97], [-139.68, 59.32], [-139.75, 59.35], [-140.0, 59.25], [-140.25, 59.35], [-140.5, 59.25], [-140.75, 59.35], [-141.0, 59.25], [-141.25, 59.35], [-141.5, 59.25], [-142.03, 59.47], [-142.18, 59.82], [-142.25, 59.85], [-142.5, 59.75], [-142.75, 59.85], [-143.0, 59.75], [-143.25, 59.85], [-143.5, 59.75], [-144.03, 59.97], [-144.18, 60.32], [-144.53, 60.47]]]]}, "2024-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-144.53, 60.47], [-144.75, 61.0], [-144.53, 61.53], [-144.0, 61.75], [-143.75, 61.65], [-143.68, 61.68], [-143.53, 62.03], [-143.0, 62.25], [-142.47, 62.03], [-142.32, 61.68], [-142.0, 61.54], [-141.5, 61.75], [-141.25, 61.65], [-141.0, 61.75], [-140.5, 61.54], [-140.0, 61.75], [-139.47, 61.53], [-139.32, 61.18], [-139.25, 61.15], [-139.0, 61.25], [-138.75, 61.15], [-138.5, 61.25], [-138.25, 61.15], [-138.0, 61.25], [-137.47, 61.03], [-137.25, 60.5], [-137.35, 60.25], [-137.25, 60.0], [-137.35, 59.75], [-137.32, 59.68], [-137.25, 59.65], [-137.0, 59.75], [-136.47, 59.53], [-136.25, 59.0], [-136.35, 58.75], [-136.25, 58.5], [-136.47, 57.97], [-137.0, 57.75], [-137.53, 57.97], [-137.68, 58.32], [-137.75, 58.35], [-138.0, 58.25], [-138.25, 58.35], [-138.5, 58.25], [-139.03, 58.47], [-139.18, 58.82], [-139.53, 58.97], [-139.68, 59.32], [-139.75, 59.35], [-140.0, 59.25], [-140.25, 59.35], [-140.5, 59.25], [-140.75, 59.35], [-141.0, 59.25], [-141.25, 59.35], [-141.5, 59.25], [-142.03, 59.47], [-142.18, 59.82], [-142.25, 59.85], [-142.5, 59.75], [-142.75, 59.85], [-143.0, 59.75], [-143.25, 59.85], [-143.5, 59.75], [-144.03, 59.97], [-144.18, 60.32], [-144.53, 60.47]]]]}, "2024-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-144.53, 60.47], [-144.75, 61.0], [-144.53, 61.53], [-144.0, 61.75], [-143.75, 61.65], [-143.68, 61.68], [-143.53, 62.03], [-143.0, 62.25], [-142.47, 62.03], [-142.32, 61.68], [-141.97, 61.53], [-141.82, 61.18], [-141.75, 61.15], [-141.5, 61.25], [-141.25, 61.15], [-141.0, 61.25], [-140.75, 61.15], [-140.68, 61.18], [-140.53, 61.53], [-140.0, 61.75], [-139.47, 61.53], [-139.32, 61.18], [-139.25, 61.15], [-139.0, 61.25], [-138.75, 61.15], [-138.5, 61.25], [-138.25, 61.15], [-138.0, 61.25], [-137.47, 61.03], [-137.25, 60.5], [-137.35, 60.25], [-137.25, 60.0], [-137.35, 59.75], [-137.32, 59.68], [-137.25, 59.65], [-137.0, 59.75], [-136.47, 59.53], [-136.25, 59.0], [-136.47, 58.47], [-137.0, 58.25], [-137.25, 58.35], [-137.5, 58.25], [-137.75, 58.35], [-138.0, 58.25], [-138.25, 58.35], [-138.5, 58.25], [-139.03, 58.47], [-139.18, 58.82], [-139.53, 58.97], [-139.68, 59.32], [-139.75, 59.35], [-140.0, 59.25], [-140.25, 59.35], [-140.5, 59.25], [-141.03, 59.47], [-141.18, 59.82], [-141.25, 59.85], [-141.5, 59.75], [-141.75, 59.85], [-142.0, 59.75], [-142.25, 59.85], [-142.5, 59.75], [-142.75, 59.85], [-143.0, 59.75], [-143.25, 59.85], [-143.5, 59.75], [-144.03, 59.97], [-144.18, 60.32], [-144.53, 60.47]]]]}, "2024-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-144.53, 60.47], [-144.75, 61.0], [-144.53, 61.53], [-144.0, 61.75], [-143.75, 61.65], [-143.5, 61.75], [-142.97, 61.53], [-142.82, 61.18], [-142.75, 61.15], [-142.5, 61.25], [-142.25, 61.15], [-142.0, 61.25], [-141.75, 61.15], [-141.5, 61.25], [-141.25, 61.15], [-141.0, 61.25], [-140.75, 61.15], [-140.68, 61.18], [-140.53, 61.53], [-140.0, 61.75], [-139.47, 61.53], [-139.32, 61.18], [-139.25, 61.15], [-139.0, 61.25], [-138.75, 61.15], [-138.5, 61.25], [-138.25, 61.15], [-138.0, 61.25], [-137.47, 61.03], [-137.25, 60.5], [-137.35, 60.25], [-137.25, 60.0], [-137.35, 59.75], [-137.32, 59.68], [-137.25, 59.65], [-137.0, 59.75], [-136.47, 59.53], [-136.25, 59.0], [-136.47, 58.47], [-137.0, 58.25], [-137.25, 58.35], [-137.5, 58.25], [-137.75, 58.35], [-138.0, 58.25], [-138.25, 58.35], [-138.5, 58.25], [-139.03, 58.47], [-139.18, 58.82], [-139.53, 58.97], [-139.68, 59.32], [-139.75, 59.35], [-140.0, 59.25], [-140.25, 59.35], [-140.5, 59.25], [-141.03, 59.47], [-141.18, 59.82], [-141.25, 59.85], [-141.5, 59.75], [-141.75, 59.85], [-142.0, 59.75], [-142.25, 59.85], [-142.5, 59.75], [-142.75, 59.85], [-143.0, 59.75], [-143.25, 59.85], [-143.5, 59.75], [-144.03, 59.97], [-144.18, 60.32], [-144.53, 60.47]]]]}, "2024-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-140.03, 59.47], [-140.25, 60.0], [-140.03, 60.53], [-139.5, 60.75], [-139.25, 60.65], [-139.0, 60.75], [-138.75, 60.65], [-138.5, 60.75], [-138.25, 60.65], [-138.0, 60.75], [-137.47, 60.53], [-137.25, 60.0], [-137.35, 59.75], [-137.25, 59.5], [-137.47, 58.97], [-138.0, 58.75], [-138.25, 58.85], [-138.5, 58.75], [-138.75, 58.85], [-139.0, 58.75], [-139.53, 58.97], [-139.68, 59.32], [-140.03, 59.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.952769081708368}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.2263752477289245}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-0.9104522705077898, -1.385100447529453, -2.10671576040761, -2.7124102110503827, -2.5314504714238524, -1.1903805687313707]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.129505411783896, 8.161061859130882, 8.04728724161788, 7.852302805582724, 8.379060363769554, 2.4122863769531477]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.873000866327588, 6.543942254026471, 6.074728605903121, 6.151641828608511, 6.52914479145974, 5.588213806701082]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.4423612631429705, 8.952769081708368, 8.492916229355785, 7.776002006878457, 8.433780605425738, 6.577772002335166]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6019416137257727, 1.6788986157528674, 1.542753094346583, 1.47893711954857, 1.5721511231244658, 1.2935348866483871]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0605492863951724, 2.081779644498668, 1.8244693109866077, 1.8216828956981583, 1.8728634891660039, 1.4028701188843529]}}