{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:03.782477", "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": "2012-Dec-03_to_2012-Dec-05_281.5_39.5"}, "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": 2012120001529}, "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": "December 03 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 05 2012"}, "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": 88819.81178636642}, "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": ["E.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": []}, "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": 39.5}, "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": 281.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "281.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 277.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 282.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.03, 37.03], [-82.5, 37.25], [-82.0, 37.04], [-81.5, 37.25], [-81.25, 37.15], [-81.12, 37.2], [-81.25, 37.5], [-81.03, 38.03], [-80.68, 38.18], [-80.53, 38.53], [-80.0, 38.75], [-79.75, 38.65], [-79.68, 38.68], [-79.65, 38.75], [-79.75, 39.0], [-79.53, 39.53], [-79.18, 39.68], [-79.03, 40.03], [-78.5, 40.25], [-78.25, 40.15], [-78.0, 40.25], [-77.47, 40.03], [-77.25, 39.5], [-77.35, 39.25], [-77.25, 39.0], [-77.47, 38.47], [-78.0, 38.25], [-78.25, 38.35], [-78.32, 38.32], [-78.35, 38.25], [-78.32, 38.18], [-77.97, 38.03], [-77.75, 37.5], [-77.85, 37.25], [-77.75, 37.0], [-77.97, 36.47], [-78.32, 36.32], [-78.47, 35.97], [-78.82, 35.82], [-78.97, 35.47], [-79.5, 35.25], [-79.75, 35.35], [-79.82, 35.32], [-79.97, 34.97], [-80.5, 34.75], [-80.75, 34.85], [-81.0, 34.75], [-81.25, 34.85], [-81.32, 34.82], [-81.47, 34.47], [-82.0, 34.25], [-82.53, 34.47], [-82.75, 35.0], [-82.62, 35.3], [-83.03, 35.47], [-83.25, 36.0], [-83.15, 36.25], [-83.25, 36.5], [-83.03, 37.03]]]]}, "2012-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.03, 37.03], [-82.5, 37.25], [-82.0, 37.04], [-81.5, 37.25], [-81.25, 37.15], [-81.12, 37.2], [-81.25, 37.5], [-81.03, 38.03], [-80.68, 38.18], [-80.53, 38.53], [-80.0, 38.75], [-79.75, 38.65], [-79.68, 38.68], [-79.65, 38.75], [-79.75, 39.0], [-79.53, 39.53], [-79.18, 39.68], [-79.03, 40.03], [-78.5, 40.25], [-78.25, 40.15], [-78.0, 40.25], [-77.47, 40.03], [-77.25, 39.5], [-77.35, 39.25], [-77.25, 39.0], [-77.47, 38.47], [-78.0, 38.25], [-78.25, 38.35], [-78.32, 38.32], [-78.35, 38.25], [-78.32, 38.18], [-77.97, 38.03], [-77.75, 37.5], [-77.85, 37.25], [-77.75, 37.0], [-77.97, 36.47], [-78.32, 36.32], [-78.47, 35.97], [-78.82, 35.82], [-78.97, 35.47], [-79.5, 35.25], [-79.75, 35.35], [-79.82, 35.32], [-79.97, 34.97], [-80.5, 34.75], [-80.75, 34.85], [-81.0, 34.75], [-81.25, 34.85], [-81.32, 34.82], [-81.47, 34.47], [-82.0, 34.25], [-82.53, 34.47], [-82.75, 35.0], [-82.62, 35.3], [-83.03, 35.47], [-83.25, 36.0], [-83.15, 36.25], [-83.25, 36.5], [-83.03, 37.03]]]]}, "2012-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.03, 37.03], [-82.5, 37.25], [-82.0, 37.04], [-81.5, 37.25], [-81.25, 37.15], [-81.12, 37.2], [-81.25, 37.5], [-81.03, 38.03], [-80.68, 38.18], [-80.53, 38.53], [-80.0, 38.75], [-79.75, 38.65], [-79.68, 38.68], [-79.65, 38.75], [-79.75, 39.0], [-79.53, 39.53], [-79.18, 39.68], [-79.03, 40.03], [-78.5, 40.25], [-78.25, 40.15], [-78.0, 40.25], [-77.47, 40.03], [-77.25, 39.5], [-77.35, 39.25], [-77.25, 39.0], [-77.47, 38.47], [-78.0, 38.25], [-78.25, 38.35], [-78.32, 38.32], [-78.35, 38.25], [-78.32, 38.18], [-77.97, 38.03], [-77.75, 37.5], [-77.85, 37.25], [-77.75, 37.0], [-77.97, 36.47], [-78.32, 36.32], [-78.47, 35.97], [-78.82, 35.82], [-78.97, 35.47], [-79.5, 35.25], [-79.75, 35.35], [-79.82, 35.32], [-79.97, 34.97], [-80.5, 34.75], [-80.75, 34.85], [-81.0, 34.75], [-81.25, 34.85], [-81.32, 34.82], [-81.47, 34.47], [-82.0, 34.25], [-82.53, 34.47], [-82.75, 35.0], [-82.62, 35.3], [-83.03, 35.47], [-83.25, 36.0], [-83.15, 36.25], [-83.25, 36.5], [-83.03, 37.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.3369000282662}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.213803979053887}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.793060955012095, 13.31058959563262, 13.086609083244127]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.100792352335077, 15.23954945375192, 15.657631921755808]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.167765165932822, 8.196450575518615, 8.277196195710227]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.870689618100641, 10.3369000282662, 9.18000817740051]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7011666545117567, 1.713662247983348, 1.6822221942188846]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0738820632664132, 2.2159794468573377, 1.887805879901193]}}