{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:32.326001", "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": "2015-Jul-20_to_2015-Jul-24_280.5_26.5"}, "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": 2015070002622}, "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": "July 20 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 2015"}, "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": 81048.4488268048}, "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": ["North Atlantic 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": 26.5}, "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": 280.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "280.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 278.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 283.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.07, 27.57], [-80.25, 28.0], [-80.15, 28.25], [-80.25, 28.5], [-80.15, 28.75], [-80.25, 29.0], [-80.15, 29.25], [-80.25, 29.5], [-80.03, 30.03], [-79.68, 30.18], [-79.53, 30.53], [-79.18, 30.68], [-79.03, 31.03], [-78.5, 31.25], [-77.97, 31.03], [-77.75, 30.5], [-77.97, 29.97], [-78.32, 29.82], [-78.35, 29.75], [-78.25, 29.5], [-78.47, 28.97], [-78.82, 28.82], [-78.85, 28.75], [-78.75, 28.5], [-78.85, 28.25], [-78.75, 28.0], [-78.97, 27.47], [-79.5, 27.25], [-78.97, 27.03], [-78.75, 26.5], [-78.97, 25.97], [-79.5, 25.75], [-80.03, 25.97], [-80.2, 26.38], [-80.32, 26.32], [-80.47, 25.97], [-81.0, 25.75], [-81.53, 25.97], [-81.75, 26.5], [-81.53, 27.03], [-81.18, 27.18], [-81.03, 27.53], [-80.5, 27.75], [-80.07, 27.57]], [[-79.93, 27.43], [-79.8, 27.12], [-79.5, 27.25], [-79.93, 27.43]]], [[[-77.53, 31.47], [-77.75, 32.0], [-77.53, 32.53], [-77.0, 32.75], [-76.47, 32.53], [-76.25, 32.0], [-76.47, 31.47], [-77.0, 31.25], [-77.53, 31.47]]]]}, "2015-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.68, 27.68], [-80.65, 27.75], [-80.75, 28.0], [-80.53, 28.53], [-80.18, 28.68], [-80.15, 28.75], [-80.25, 29.0], [-80.15, 29.25], [-80.25, 29.5], [-80.15, 29.75], [-80.25, 30.0], [-80.04, 30.5], [-80.25, 31.0], [-80.03, 31.53], [-79.68, 31.68], [-79.53, 32.03], [-79.0, 32.25], [-78.75, 32.15], [-78.5, 32.25], [-78.25, 32.15], [-78.0, 32.25], [-77.75, 32.15], [-77.68, 32.18], [-77.53, 32.53], [-77.0, 32.75], [-76.47, 32.53], [-76.25, 32.0], [-76.47, 31.47], [-76.82, 31.32], [-76.97, 30.97], [-77.32, 30.82], [-77.46, 30.5], [-77.25, 30.0], [-77.35, 29.75], [-77.25, 29.5], [-77.47, 28.97], [-78.0, 28.75], [-78.25, 28.85], [-78.32, 28.82], [-78.47, 28.47], [-78.82, 28.32], [-78.85, 28.25], [-78.75, 28.0], [-78.85, 27.75], [-78.75, 27.5], [-78.85, 27.25], [-78.75, 27.0], [-78.85, 26.75], [-78.82, 26.68], [-78.47, 26.53], [-78.25, 26.0], [-78.47, 25.47], [-79.0, 25.25], [-79.5, 25.46], [-80.0, 25.25], [-80.53, 25.47], [-80.7, 25.88], [-81.0, 25.75], [-81.53, 25.97], [-81.75, 26.5], [-81.53, 27.03], [-81.18, 27.18], [-81.03, 27.53], [-80.68, 27.68]]]]}, "2015-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.68, 27.68], [-80.65, 27.75], [-80.75, 28.0], [-80.53, 28.53], [-80.18, 28.68], [-80.15, 28.75], [-80.25, 29.0], [-80.15, 29.25], [-80.25, 29.5], [-80.15, 29.75], [-80.25, 30.0], [-80.04, 30.5], [-80.25, 31.0], [-80.03, 31.53], [-79.68, 31.68], [-79.53, 32.03], [-79.0, 32.25], [-78.75, 32.15], [-78.5, 32.25], [-78.25, 32.15], [-78.0, 32.25], [-77.75, 32.15], [-77.68, 32.18], [-77.53, 32.53], [-77.0, 32.75], [-76.47, 32.53], [-76.25, 32.0], [-76.47, 31.47], [-76.82, 31.32], [-76.97, 30.97], [-77.32, 30.82], [-77.46, 30.5], [-77.25, 30.0], [-77.35, 29.75], [-77.25, 29.5], [-77.47, 28.97], [-78.0, 28.75], [-78.25, 28.85], [-78.32, 28.82], [-78.47, 28.47], [-78.82, 28.32], [-78.85, 28.25], [-78.75, 28.0], [-78.85, 27.75], [-78.75, 27.5], [-78.85, 27.25], [-78.75, 27.0], [-78.85, 26.75], [-78.82, 26.68], [-78.47, 26.53], [-78.25, 26.0], [-78.47, 25.47], [-79.0, 25.25], [-79.3, 25.38], [-79.47, 24.97], [-80.0, 24.75], [-80.53, 24.97], [-80.75, 25.5], [-80.65, 25.75], [-80.7, 25.88], [-81.0, 25.75], [-81.53, 25.97], [-81.75, 26.5], [-81.53, 27.03], [-81.18, 27.18], [-81.03, 27.53], [-80.68, 27.68]]]]}, "2015-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.68, 27.68], [-80.65, 27.75], [-80.75, 28.0], [-80.53, 28.53], [-80.12, 28.7], [-80.25, 29.0], [-80.15, 29.25], [-80.25, 29.5], [-80.15, 29.75], [-80.25, 30.0], [-80.04, 30.5], [-80.25, 31.0], [-80.03, 31.53], [-79.68, 31.68], [-79.53, 32.03], [-79.0, 32.25], [-78.75, 32.15], [-78.5, 32.25], [-78.25, 32.15], [-78.0, 32.25], [-77.75, 32.15], [-77.5, 32.25], [-76.97, 32.03], [-76.75, 31.5], [-76.97, 30.97], [-77.32, 30.82], [-77.46, 30.5], [-77.25, 30.0], [-77.35, 29.75], [-77.25, 29.5], [-77.47, 28.97], [-78.0, 28.75], [-78.25, 28.85], [-78.32, 28.82], [-78.47, 28.47], [-78.87, 28.3], [-78.75, 28.0], [-78.85, 27.75], [-78.75, 27.5], [-78.85, 27.25], [-78.75, 27.0], [-78.85, 26.75], [-78.82, 26.68], [-78.47, 26.53], [-78.25, 26.0], [-78.47, 25.47], [-79.0, 25.25], [-79.3, 25.38], [-79.47, 24.97], [-80.0, 24.75], [-80.53, 24.97], [-80.75, 25.5], [-80.65, 25.75], [-80.7, 25.88], [-81.0, 25.75], [-81.53, 25.97], [-81.75, 26.5], [-81.53, 27.03], [-81.18, 27.18], [-81.03, 27.53], [-80.68, 27.68]]]]}, "2015-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.53, 26.53], [-80.18, 26.68], [-80.15, 26.75], [-80.25, 27.0], [-80.03, 27.53], [-79.5, 27.75], [-78.97, 27.53], [-78.75, 27.0], [-78.85, 26.75], [-78.75, 26.5], [-78.97, 25.97], [-79.32, 25.82], [-79.35, 25.75], [-79.25, 25.5], [-79.47, 24.97], [-80.0, 24.75], [-80.53, 24.97], [-80.75, 25.5], [-80.65, 25.75], [-80.75, 26.0], [-80.53, 26.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.3090964410039874}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.149314289901662}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.681698117807628, 28.60217658169512, 28.74703779632364, 28.70859365061733, 28.88749279785759]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.761414686290152, 29.897317404489343, 29.421616279426985, 29.81650813359437, 29.030053334462252]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1446868450130874, 1.100575298825314, 1.218479500507228, 1.1505655531679102, 0.9878995262432824]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0446075875466363, 2.3090964410039874, 1.8375555206175704, 2.2084434682769825, 1.0417028649777649]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.336836658715656, 1.431702099157226, 1.6175420753081258, 1.5292198450504497, 1.6253690417088322]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6273458421196763, 1.880147187025299, 2.1796245773869005, 1.8183242856133135, 1.7760950327149707]}}