{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:22.805220", "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-Aug-31_to_2012-Sep-06_20.5_43.0"}, "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": 2012080003174}, "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 31 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2012"}, "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": 74574.87673222824}, "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": ["Albania", "Bosnia and Herzegovina", "Montenegro", "North Macedonia", "Serbia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": 43.0}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 21.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, 43.47], [16.25, 44.0], [16.47, 44.53], [17.0, 44.75], [17.25, 44.65], [17.5, 44.75], [17.75, 44.65], [18.0, 44.75], [18.5, 44.54], [19.0, 44.75], [19.25, 44.65], [19.32, 44.68], [19.47, 45.03], [20.0, 45.25], [20.53, 45.03], [20.75, 44.5], [20.65, 44.25], [20.75, 44.0], [20.65, 43.75], [20.68, 43.68], [20.75, 43.65], [21.0, 43.75], [21.53, 43.53], [21.75, 43.0], [21.54, 42.5], [21.75, 42.0], [21.53, 41.47], [21.0, 41.25], [20.47, 41.47], [20.25, 42.0], [20.38, 42.3], [19.97, 42.47], [19.82, 42.82], [19.75, 42.85], [19.5, 42.75], [19.25, 42.85], [19.0, 42.75], [18.75, 42.85], [18.5, 42.75], [17.97, 42.97], [17.82, 43.32], [17.75, 43.35], [17.5, 43.25], [17.25, 43.35], [17.0, 43.25], [16.47, 43.47]]]]}, "2012-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.25, 44.0], [16.47, 44.53], [17.0, 44.75], [17.25, 44.65], [17.5, 44.75], [17.75, 44.65], [18.0, 44.75], [18.5, 44.54], [19.0, 44.75], [19.25, 44.65], [19.32, 44.68], [19.47, 45.03], [20.0, 45.25], [20.53, 45.03], [20.75, 44.5], [20.65, 44.25], [20.75, 44.0], [20.65, 43.75], [20.68, 43.68], [20.75, 43.65], [21.0, 43.75], [21.53, 43.53], [21.68, 43.18], [22.03, 43.03], [22.25, 42.5], [22.03, 41.97], [21.68, 41.82], [21.65, 41.75], [21.75, 41.5], [21.53, 40.97], [21.0, 40.75], [20.75, 40.85], [20.5, 40.75], [19.97, 40.97], [19.82, 41.32], [19.47, 41.47], [19.25, 42.0], [19.35, 42.25], [19.32, 42.32], [19.25, 42.35], [19.0, 42.25], [18.75, 42.35], [18.5, 42.25], [17.97, 42.47], [17.82, 42.82], [17.75, 42.85], [17.5, 42.75], [16.97, 42.97], [16.82, 43.32], [16.47, 43.47], [16.25, 44.0]]]]}, "2012-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.25, 44.0], [16.47, 44.53], [17.0, 44.75], [17.25, 44.65], [17.5, 44.75], [17.75, 44.65], [18.0, 44.75], [18.5, 44.54], [19.0, 44.75], [19.25, 44.65], [19.32, 44.68], [19.47, 45.03], [20.0, 45.25], [20.53, 45.03], [20.75, 44.5], [20.65, 44.25], [20.75, 44.0], [20.65, 43.75], [20.68, 43.68], [20.75, 43.65], [21.0, 43.75], [21.53, 43.53], [21.68, 43.18], [22.03, 43.03], [22.25, 42.5], [22.03, 41.97], [21.68, 41.82], [21.65, 41.75], [21.75, 41.5], [21.53, 40.97], [21.0, 40.75], [20.75, 40.85], [20.5, 40.75], [19.97, 40.97], [19.82, 41.32], [19.47, 41.47], [19.3, 41.88], [19.0, 41.75], [18.47, 41.97], [18.32, 42.32], [17.97, 42.47], [17.82, 42.82], [17.75, 42.85], [17.5, 42.75], [16.97, 42.97], [16.82, 43.32], [16.47, 43.47], [16.25, 44.0]]]]}, "2012-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.25, 44.0], [16.47, 44.53], [17.0, 44.75], [17.25, 44.65], [17.5, 44.75], [17.75, 44.65], [18.0, 44.75], [18.5, 44.54], [18.82, 44.68], [18.97, 45.03], [19.5, 45.25], [20.03, 45.03], [20.18, 44.68], [20.53, 44.53], [20.75, 44.0], [20.65, 43.75], [20.68, 43.68], [21.03, 43.53], [21.2, 43.13], [21.5, 43.25], [22.03, 43.03], [22.25, 42.5], [22.15, 42.25], [22.25, 42.0], [22.03, 41.47], [21.68, 41.32], [21.65, 41.25], [21.75, 41.0], [21.53, 40.47], [21.0, 40.25], [20.47, 40.47], [20.32, 40.82], [19.97, 40.97], [19.82, 41.32], [19.47, 41.47], [19.3, 41.88], [19.0, 41.75], [18.47, 41.97], [18.32, 42.32], [17.97, 42.47], [17.82, 42.82], [17.75, 42.85], [17.5, 42.75], [16.97, 42.97], [16.82, 43.32], [16.47, 43.47], [16.25, 44.0]]]]}, "2012-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.25, 44.0], [16.47, 44.53], [17.0, 44.75], [17.25, 44.65], [17.5, 44.75], [17.75, 44.65], [18.0, 44.75], [18.5, 44.54], [18.82, 44.68], [18.97, 45.03], [19.5, 45.25], [20.03, 45.03], [20.18, 44.68], [20.53, 44.53], [20.75, 44.0], [20.65, 43.75], [20.68, 43.68], [20.75, 43.65], [21.0, 43.75], [21.25, 43.65], [21.5, 43.75], [22.03, 43.53], [22.25, 43.0], [22.15, 42.75], [22.25, 42.5], [22.15, 42.25], [22.25, 42.0], [22.03, 41.47], [21.68, 41.32], [21.65, 41.25], [21.75, 41.0], [21.53, 40.47], [21.0, 40.25], [20.47, 40.47], [20.32, 40.82], [19.97, 40.97], [19.82, 41.32], [19.47, 41.47], [19.3, 41.88], [19.0, 41.75], [18.47, 41.97], [18.32, 42.32], [17.97, 42.47], [17.82, 42.82], [17.75, 42.85], [17.5, 42.75], [16.97, 42.97], [16.82, 43.32], [16.47, 43.47], [16.25, 44.0]]]]}, "2012-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, 45.03], [19.5, 45.25], [20.03, 45.03], [20.18, 44.68], [20.53, 44.53], [20.75, 44.0], [20.63, 43.7], [20.75, 43.65], [21.0, 43.75], [21.25, 43.65], [21.5, 43.75], [22.03, 43.53], [22.25, 43.0], [22.15, 42.75], [22.25, 42.5], [22.15, 42.25], [22.25, 42.0], [22.03, 41.47], [21.68, 41.32], [21.65, 41.25], [21.75, 41.0], [21.53, 40.47], [21.0, 40.25], [20.47, 40.47], [20.32, 40.82], [19.97, 40.97], [19.82, 41.32], [19.47, 41.47], [19.25, 42.0], [19.35, 42.25], [19.3, 42.38], [19.0, 42.25], [18.47, 42.47], [18.25, 43.0], [18.47, 43.53], [18.88, 43.7], [18.75, 44.0], [18.85, 44.25], [18.75, 44.5], [18.97, 45.03]]]]}, "2012-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.47, 43.53], [21.0, 43.75], [21.25, 43.65], [21.5, 43.75], [22.03, 43.53], [22.25, 43.0], [22.15, 42.75], [22.25, 42.5], [22.15, 42.25], [22.25, 42.0], [22.03, 41.47], [21.5, 41.25], [20.97, 41.47], [20.82, 41.82], [20.47, 41.97], [20.25, 42.5], [20.35, 42.75], [20.25, 43.0], [20.47, 43.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.6130111337110975}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.071314640415577}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.030179689045724, 21.977812188017538, 21.71992805796117, 21.32899265937681, 21.38380066973434, 21.304298441389733, 22.046324822709664]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.87623190403542, 25.816063936333762, 25.079007596202587, 25.516619594848066, 26.362896494952622, 26.774237178504393, 24.096752315196056]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.1657531400023595, 5.249986290765081, 5.224885945627152, 4.967672924979419, 5.152760925941328, 4.768278319975458, 4.213464360337821]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.021282451794264, 6.509881997588366, 6.490274604589899, 6.489633307804809, 6.170474503645892, 6.6130111337110975, 4.713606214329104]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5023456268556046, 1.6278425518415902, 1.6699816624527717, 1.6185286798616099, 1.679150202854397, 1.596476339085363, 1.3738531504581875]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6698124474846137, 1.9076064913350637, 2.1438483971917335, 2.017287593851601, 1.9031777645509396, 2.116870831650124, 1.5809868106428173]}}