{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:30.552819", "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-Sep-17_to_2012-Sep-19_30.0_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": 2012090002241}, "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": "September 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 19 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": 74806.11556490784}, "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": ["Estonia", "Finland", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": ["Gulf of Finland"]}, "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": 30.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 26.75}, "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": 57.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 63.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, 59.03], [26.88, 59.2], [26.75, 59.5], [26.85, 59.75], 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59.03]]]]}, "2012-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, 59.03], [26.88, 59.2], [26.75, 59.5], [26.85, 59.75], [26.75, 60.0], [26.85, 60.25], [26.75, 60.5], [26.97, 61.03], [27.32, 61.18], [27.47, 61.53], [28.0, 61.75], [28.25, 61.65], [28.32, 61.68], [28.35, 61.75], [28.25, 62.0], [28.46, 62.5], [28.25, 63.0], [28.47, 63.53], [29.0, 63.75], [29.25, 63.65], [29.32, 63.68], [29.47, 64.03], [30.0, 64.25], [30.25, 64.15], [30.5, 64.25], [30.75, 64.15], [31.0, 64.25], [31.25, 64.15], [31.5, 64.25], [31.75, 64.15], [32.0, 64.25], [32.53, 64.03], [32.75, 63.5], [32.53, 62.97], [32.18, 62.82], [32.03, 62.47], [31.68, 62.32], [31.53, 61.97], [31.18, 61.82], [31.03, 61.47], [30.68, 61.32], [30.65, 61.25], [30.68, 61.18], [31.03, 61.03], [31.25, 60.5], [31.03, 59.97], [30.68, 59.82], [30.53, 59.47], [30.0, 59.25], [29.75, 59.35], [29.68, 59.32], [29.65, 59.25], [29.75, 59.0], [29.53, 58.47], [29.0, 58.25], [28.75, 58.35], [28.68, 58.32], [28.53, 57.97], [28.18, 57.82], [28.03, 57.47], [27.5, 57.25], [27.25, 57.35], [27.0, 57.25], [26.47, 57.47], [26.25, 58.0], [26.35, 58.25], [26.25, 58.5], [26.47, 59.03]]]]}, "2012-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, 59.03], [26.88, 59.2], [26.75, 59.5], [26.85, 59.75], [26.75, 60.0], [26.85, 60.25], [26.75, 60.5], [26.97, 61.03], [27.32, 61.18], [27.47, 61.53], [28.0, 61.75], [28.25, 61.65], [28.32, 61.68], [28.35, 61.75], [28.25, 62.0], [28.46, 62.5], [28.25, 63.0], [28.47, 63.53], [29.0, 63.75], [29.25, 63.65], [29.32, 63.68], [29.47, 64.03], [30.0, 64.25], [30.25, 64.15], [30.5, 64.25], [30.75, 64.15], [31.0, 64.25], [31.25, 64.15], [31.5, 64.25], [31.75, 64.15], [32.0, 64.25], [32.53, 64.03], [32.75, 63.5], [32.53, 62.97], [32.18, 62.82], [32.03, 62.47], [31.68, 62.32], [31.53, 61.97], [31.18, 61.82], [31.03, 61.47], [30.68, 61.32], [30.65, 61.25], [30.68, 61.18], [31.03, 61.03], [31.25, 60.5], [31.03, 59.97], [30.68, 59.82], [30.53, 59.47], [30.0, 59.25], [29.75, 59.35], [29.68, 59.32], [29.65, 59.25], [29.75, 59.0], [29.53, 58.47], [29.0, 58.25], [28.75, 58.35], [28.68, 58.32], [28.53, 57.97], [28.18, 57.82], [28.03, 57.47], [27.5, 57.25], [27.25, 57.35], [27.0, 57.25], [26.47, 57.47], [26.25, 58.0], [26.35, 58.25], [26.25, 58.5], [26.47, 59.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.601355544910405}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.10000361981448}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.909209854172332, 14.055435669647238, 14.450468677607375]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.437516041089339, 15.757474711953819, 15.853154192850923]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.757361357629013, 4.0115155334815435, 4.531133968332889]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.250017715242848, 4.786130313777505, 5.601355544910405]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3617737933230927, 1.4408676368599314, 1.616343975934669]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5291649982810493, 1.7985792729102361, 2.0340793517096536]}}