{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:57:22.854692", "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": "2024-Jan-30_to_2024-Feb-01_54.5_60.5"}, "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": 2024010002142}, "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": "January 30 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 01 2024"}, "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": 52684.2350268132}, "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": ["Russian Federation"]}, "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": 60.5}, "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": 54.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "54.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 53.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 57.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[53.32, 60.68], [53.47, 61.03], [53.82, 61.18], [53.97, 61.53], [54.5, 61.75], [54.75, 61.65], [55.0, 61.75], [55.25, 61.65], [55.5, 61.75], [56.0, 61.54], [56.5, 61.75], [56.75, 61.65], [57.0, 61.75], [57.53, 61.53], [57.75, 61.0], [57.65, 60.75], [57.75, 60.5], [57.65, 60.25], [57.75, 60.0], [57.53, 59.47], [57.18, 59.32], [57.03, 58.97], [56.68, 58.82], [56.53, 58.47], [56.18, 58.32], [56.03, 57.97], [55.5, 57.75], [55.25, 57.85], [55.0, 57.75], [54.47, 57.97], [54.32, 58.32], [54.25, 58.35], [54.0, 58.25], [53.47, 58.47], [53.32, 58.82], [52.97, 58.97], [52.75, 59.5], [52.85, 59.75], [52.75, 60.0], [52.97, 60.53], [53.32, 60.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 60.0], [52.97, 60.53], [53.32, 60.68], [53.47, 61.03], [53.82, 61.18], [53.97, 61.53], [54.5, 61.75], [54.75, 61.65], [55.0, 61.75], [55.25, 61.65], [55.5, 61.75], [56.0, 61.54], [56.5, 61.75], [56.75, 61.65], [57.0, 61.75], [57.53, 61.53], [57.75, 61.0], [57.65, 60.75], [57.75, 60.5], [57.65, 60.25], [57.75, 60.0], [57.53, 59.47], [57.18, 59.32], [57.03, 58.97], [56.68, 58.82], [56.53, 58.47], [56.18, 58.32], [56.03, 57.97], [55.5, 57.75], [55.25, 57.85], [55.0, 57.75], [54.47, 57.97], [54.32, 58.32], [54.25, 58.35], [54.0, 58.25], [53.47, 58.47], [53.32, 58.82], [52.97, 58.97], [52.75, 59.5], [52.85, 59.75], [52.75, 60.0]]]]}, "2024-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 60.0], [52.97, 60.53], [53.32, 60.68], [53.47, 61.03], [53.82, 61.18], [53.97, 61.53], [54.5, 61.75], [54.75, 61.65], [55.0, 61.75], [55.25, 61.65], [55.5, 61.75], [56.0, 61.54], [56.5, 61.75], [56.75, 61.65], [57.0, 61.75], [57.53, 61.53], [57.75, 61.0], [57.65, 60.75], [57.75, 60.5], [57.65, 60.25], [57.75, 60.0], [57.53, 59.47], [57.18, 59.32], [57.03, 58.97], [56.68, 58.82], [56.53, 58.47], [56.18, 58.32], [56.03, 57.97], [55.5, 57.75], [55.25, 57.85], [55.0, 57.75], [54.47, 57.97], [54.32, 58.32], [54.25, 58.35], [54.0, 58.25], [53.47, 58.47], [53.32, 58.82], [52.97, 58.97], [52.75, 59.5], [52.85, 59.75], [52.75, 60.0]]]]}, "2024-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 60.0], [52.97, 60.53], [53.32, 60.68], [53.47, 61.03], [53.82, 61.18], [53.97, 61.53], [54.5, 61.75], [54.75, 61.65], [55.0, 61.75], [55.25, 61.65], [55.5, 61.75], [56.0, 61.54], [56.5, 61.75], [56.75, 61.65], [57.0, 61.75], [57.53, 61.53], [57.75, 61.0], [57.65, 60.75], [57.75, 60.5], [57.65, 60.25], [57.75, 60.0], [57.53, 59.47], [57.18, 59.32], [57.03, 58.97], [56.68, 58.82], [56.53, 58.47], [56.18, 58.32], [56.03, 57.97], [55.5, 57.75], [55.25, 57.85], [55.0, 57.75], [54.47, 57.97], [54.32, 58.32], [54.25, 58.35], [54.0, 58.25], [53.47, 58.47], [53.32, 58.82], [52.97, 58.97], [52.75, 59.5], [52.85, 59.75], [52.75, 60.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.368151034828372}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 10.61134963747869}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-4.550429214542305, -2.383177370763292, -4.144104876774406]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-3.637247436247776, -1.9002877147791537, -3.583483039917553]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.994507861908776, 11.946033868028588, 9.893507182498697]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [11.10781534120565, 12.368151034828372, 10.186710637003216]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3465167057298566, 1.6146232902111024, 1.3353719545913412]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4523211222550385, 1.6510121120296168, 1.3697097145426191]}}