{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:31.983854", "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-19_to_2015-Jul-25_27.5_28.5"}, "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": 2015070002577}, "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 19 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 25 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 165182.68611281758}, "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": ["Egypt", "Libya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 28.5}, "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": 27.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 24.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.5, 31.25], [26.03, 31.03], [26.25, 30.5], [26.03, 29.97], [25.5, 29.75], [24.97, 29.97], [24.75, 30.5], [24.97, 31.03], [25.5, 31.25]]]]}, "2015-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.82, 30.68], [24.97, 31.03], [25.5, 31.25], [25.75, 31.15], [26.0, 31.25], [26.53, 31.03], [26.75, 30.5], [26.65, 30.25], [26.75, 30.0], [26.65, 29.75], [26.75, 29.5], [26.65, 29.25], [26.68, 29.18], [26.75, 29.15], [27.0, 29.25], [27.25, 29.15], [27.5, 29.25], [28.03, 29.03], [28.25, 28.5], [28.03, 27.97], [27.68, 27.82], [27.53, 27.47], [27.0, 27.25], [26.47, 27.47], [26.32, 27.82], [25.97, 27.97], [25.82, 28.32], [25.47, 28.47], [25.32, 28.82], [25.25, 28.85], [25.0, 28.75], [24.75, 28.85], [24.5, 28.75], [23.97, 28.97], [23.75, 29.5], [23.97, 30.03], [24.32, 30.18], [24.47, 30.53], [24.82, 30.68]]]]}, "2015-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.82, 30.68], [24.97, 31.03], [25.5, 31.25], [25.75, 31.15], [26.0, 31.25], [26.53, 31.03], [26.75, 30.5], [26.65, 30.25], [26.7, 30.13], [27.0, 30.25], [27.53, 30.03], [27.68, 29.68], [27.75, 29.65], [28.0, 29.75], [28.25, 29.65], [28.5, 29.75], [28.75, 29.65], [29.0, 29.75], [29.53, 29.53], [29.75, 29.0], [29.53, 28.47], [29.18, 28.32], [29.15, 28.25], [29.25, 28.0], [29.15, 27.75], [29.25, 27.5], [29.03, 26.97], [28.5, 26.75], [27.97, 26.97], [27.82, 27.32], [27.5, 27.46], [27.0, 27.25], [26.47, 27.47], [26.32, 27.82], [25.97, 27.97], [25.82, 28.32], [25.47, 28.47], [25.32, 28.82], [25.25, 28.85], [25.0, 28.75], [24.75, 28.85], [24.5, 28.75], [23.97, 28.97], [23.75, 29.5], [23.97, 30.03], [24.32, 30.18], [24.47, 30.53], [24.82, 30.68]]]]}, "2015-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.82, 30.68], [24.97, 31.03], [25.5, 31.25], [25.75, 31.15], [26.0, 31.25], [26.53, 31.03], [26.75, 30.5], [26.65, 30.25], [26.7, 30.13], [27.0, 30.25], [27.5, 30.04], [27.82, 30.18], [27.97, 30.53], [28.5, 30.75], [28.75, 30.65], [29.0, 30.75], [29.25, 30.65], [29.5, 30.75], [29.75, 30.65], [30.0, 30.75], [30.25, 30.65], [30.5, 30.75], [31.03, 30.53], [31.25, 30.0], [31.15, 29.75], [31.25, 29.5], [31.15, 29.25], [31.18, 29.18], [31.53, 29.03], [31.75, 28.5], [31.65, 28.25], [31.68, 28.18], [32.03, 28.03], [32.25, 27.5], [32.03, 26.97], [31.5, 26.75], [30.97, 26.97], [30.82, 27.32], [30.5, 27.46], [30.0, 27.25], [29.75, 27.35], [29.5, 27.25], [29.25, 27.35], [29.18, 27.32], [29.03, 26.97], [28.5, 26.75], [27.97, 26.97], [27.82, 27.32], [27.5, 27.46], [27.0, 27.25], [26.47, 27.47], [26.32, 27.82], [25.97, 27.97], [25.82, 28.32], [25.47, 28.47], [25.32, 28.82], [25.25, 28.85], [25.0, 28.75], [24.75, 28.85], [24.5, 28.75], [23.97, 28.97], [23.75, 29.5], [23.97, 30.03], [24.32, 30.18], [24.47, 30.53], [24.82, 30.68]]]]}, "2015-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, 30.03], [26.0, 30.25], [26.5, 30.04], [27.0, 30.25], [27.5, 30.04], [27.82, 30.18], [27.97, 30.53], [28.5, 30.75], [28.75, 30.65], [29.0, 30.75], [29.25, 30.65], [29.5, 30.75], [29.75, 30.65], [30.0, 30.75], [30.25, 30.65], [30.5, 30.75], [31.03, 30.53], [31.25, 30.0], [31.15, 29.75], [31.18, 29.68], [31.25, 29.65], [31.5, 29.75], [32.03, 29.53], [32.18, 29.18], [32.53, 29.03], [32.75, 28.5], [32.65, 28.25], [32.75, 28.0], [32.65, 27.75], [32.75, 27.5], [32.65, 27.25], [32.75, 27.0], [32.53, 26.47], [32.0, 26.25], [31.47, 26.47], [31.32, 26.82], [31.25, 26.85], [31.18, 26.82], [31.03, 26.47], [30.5, 26.25], [29.97, 26.47], [29.75, 27.0], [29.85, 27.25], [29.82, 27.32], [29.75, 27.35], [29.5, 27.25], [29.25, 27.35], [29.18, 27.32], [29.03, 26.97], [28.5, 26.75], [27.97, 26.97], [27.82, 27.32], [27.5, 27.46], [27.0, 27.25], [26.47, 27.47], [26.25, 28.0], [26.35, 28.25], [26.32, 28.32], [26.25, 28.35], [26.0, 28.25], [25.47, 28.47], [25.25, 29.0], [25.35, 29.25], [25.25, 29.5], [25.47, 30.03]]]]}, "2015-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.97, 29.53], [27.32, 29.68], [27.47, 30.03], [27.82, 30.18], [27.97, 30.53], [28.5, 30.75], [28.75, 30.65], [29.0, 30.75], [29.25, 30.65], [29.5, 30.75], [29.75, 30.65], [30.0, 30.75], [30.25, 30.65], [30.5, 30.75], [31.03, 30.53], [31.25, 30.0], [31.15, 29.75], [31.18, 29.68], [31.25, 29.65], [31.5, 29.75], [32.03, 29.53], [32.18, 29.18], [32.53, 29.03], [32.75, 28.5], [32.65, 28.25], [32.75, 28.0], [32.65, 27.75], [32.75, 27.5], [32.65, 27.25], [32.75, 27.0], [32.53, 26.47], [32.0, 26.25], [31.47, 26.47], [31.32, 26.82], [31.25, 26.85], [31.18, 26.82], [31.03, 26.47], [30.5, 26.25], [29.97, 26.47], [29.75, 27.0], [29.85, 27.25], [29.82, 27.32], [29.75, 27.35], [29.5, 27.25], [29.25, 27.35], [29.0, 27.25], [28.75, 27.35], [28.5, 27.25], [28.25, 27.35], [28.0, 27.25], [27.47, 27.47], [27.32, 27.82], [26.97, 27.97], [26.75, 28.5], [26.85, 28.75], [26.75, 29.0], [26.97, 29.53]]]]}, "2015-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.85, 27.75], [29.75, 28.0], [29.85, 28.25], [29.75, 28.5], [29.97, 29.03], [30.32, 29.18], [30.47, 29.53], [31.0, 29.75], [31.25, 29.65], [31.5, 29.75], [32.03, 29.53], [32.18, 29.18], [32.53, 29.03], [32.75, 28.5], [32.65, 28.25], [32.75, 28.0], [32.65, 27.75], [32.75, 27.5], [32.65, 27.25], [32.75, 27.0], [32.53, 26.47], [32.0, 26.25], [31.47, 26.47], [31.32, 26.82], [31.25, 26.85], [31.18, 26.82], [31.03, 26.47], [30.5, 26.25], [29.97, 26.47], [29.75, 27.0], [29.85, 27.25], [29.75, 27.5], [29.85, 27.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.5384269742991705}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.7394568872692022}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.099631861282035, 31.615878669332346, 31.83497558409107, 32.06808349129261, 32.90284548424512, 32.98708146883325, 32.91356401172476]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.099631861282035, 32.78473002416058, 33.20009466992451, 34.114296359709385, 34.22140401330546, 35.05338164578433, 33.87378266981597]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.068035991816487, 2.225964860661776, 2.1796256502401636, 2.542152108109446, 3.077054468672275, 3.1426592875835113, 2.466177971409646]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.068035991816487, 2.741614056281094, 2.705934239969338, 3.8264220261086166, 4.5384269742991705, 4.5260623340570305, 3.301313676842483]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.403272843211158, 1.5197907020955213, 1.5067546262400142, 1.7918119672227384, 2.1227946363199464, 2.048289852719218, 1.5268243735701468]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.403272843211158, 1.8122523903570955, 1.848642853036457, 2.7472434477761025, 3.1911677695795704, 2.855274353643187, 1.9285351421254964]}}