{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:35.297493", "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": "2016-Jun-14_to_2016-Jun-19_357.0_42.0"}, "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": 2016060000433}, "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": "June 14 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 19 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 508159.42315455014}, "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": ["Andorra", "France", "Portugal", "Spain"]}, "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": ["Bay of Biscay", "Mediterranean Sea - Western Basin"]}, "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": 42.0}, "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": 357.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "357.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 350.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 365.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.0, 42.75], [-6.47, 42.53], [-6.25, 42.0], [-6.47, 41.47], [-7.0, 41.25], [-7.53, 41.47], [-7.75, 42.0], [-7.53, 42.53], [-7.0, 42.75]]]]}, "2016-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 40.0], [-9.15, 40.25], [-9.25, 40.5], [-9.15, 40.75], [-9.25, 41.0], [-9.15, 41.25], [-9.25, 41.5], [-9.15, 41.75], [-9.25, 42.0], [-9.15, 42.25], [-9.25, 42.5], [-9.03, 43.03], [-8.68, 43.18], [-8.65, 43.25], [-8.75, 43.5], [-8.53, 44.03], [-8.0, 44.25], [-7.5, 44.04], [-7.18, 44.18], [-7.03, 44.53], [-6.68, 44.68], [-6.53, 45.03], [-6.0, 45.25], [-5.75, 45.15], [-5.5, 45.25], [-5.25, 45.15], [-5.0, 45.25], [-4.75, 45.15], [-4.5, 45.25], [-4.25, 45.15], [-4.0, 45.25], [-3.75, 45.15], [-3.5, 45.25], [-3.25, 45.15], [-3.0, 45.25], [-2.47, 45.03], [-2.25, 44.5], [-2.47, 43.97], [-2.82, 43.82], [-2.97, 43.47], [-3.32, 43.32], [-3.37, 43.2], [-2.97, 43.03], [-2.82, 42.68], [-2.47, 42.53], [-2.25, 42.0], [-2.35, 41.75], [-2.32, 41.68], [-1.97, 41.53], [-1.75, 41.0], [-1.97, 40.47], [-2.5, 40.25], [-2.75, 40.35], [-2.82, 40.32], [-2.97, 39.97], [-3.32, 39.82], [-3.35, 39.75], [-3.25, 39.5], [-3.35, 39.25], [-3.25, 39.0], [-3.47, 38.47], [-3.82, 38.32], [-3.97, 37.97], [-4.5, 37.75], [-4.75, 37.85], [-5.0, 37.75], [-5.25, 37.85], [-5.32, 37.82], [-5.47, 37.47], [-6.0, 37.25], [-6.25, 37.35], [-6.32, 37.32], [-6.47, 36.97], [-7.0, 36.75], [-7.25, 36.85], [-7.5, 36.75], [-7.75, 36.85], [-8.0, 36.75], [-8.53, 36.97], [-8.75, 37.5], [-8.65, 37.75], [-8.75, 38.0], [-8.65, 38.25], [-8.68, 38.32], [-8.75, 38.35], [-9.0, 38.25], [-9.53, 38.47], [-9.75, 39.0], [-9.53, 39.53], [-9.18, 39.68], [-9.15, 39.75], [-9.25, 40.0]]]]}, "2016-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 40.0], [-9.15, 40.25], [-9.25, 40.5], [-9.15, 40.75], [-9.25, 41.0], [-9.15, 41.25], [-9.25, 41.5], [-9.15, 41.75], [-9.25, 42.0], [-9.15, 42.25], [-9.25, 42.5], [-9.03, 43.03], [-8.68, 43.18], [-8.65, 43.25], [-8.75, 43.5], [-8.53, 44.03], [-8.0, 44.25], [-7.5, 44.04], [-7.18, 44.18], [-7.03, 44.53], [-6.68, 44.68], [-6.53, 45.03], [-6.0, 45.25], [-5.75, 45.15], [-5.5, 45.25], [-5.25, 45.15], [-5.0, 45.25], [-4.75, 45.15], [-4.5, 45.25], [-4.25, 45.15], [-4.0, 45.25], [-3.75, 45.15], [-3.68, 45.18], [-3.53, 45.53], [-3.0, 45.75], [-2.75, 45.65], [-2.5, 45.75], [-2.25, 45.65], [-2.0, 45.75], [-1.75, 45.65], [-1.5, 45.75], [-1.25, 45.65], [-1.0, 45.75], [-0.75, 45.65], [-0.5, 45.75], [0.03, 45.53], [0.18, 45.18], [0.25, 45.15], [0.5, 45.25], [1.0, 45.04], [1.5, 45.25], [1.75, 45.15], [1.82, 45.18], [1.97, 45.53], [2.5, 45.75], [3.03, 45.53], [3.18, 45.18], [3.53, 45.03], [3.75, 44.5], [3.65, 44.25], [3.75, 44.0], [3.65, 43.75], [3.75, 43.5], [3.54, 43.0], [3.75, 42.5], [3.53, 41.97], [3.0, 41.75], [2.75, 41.85], [2.5, 41.75], [2.25, 41.85], [2.0, 41.75], [1.75, 41.85], [1.68, 41.82], [1.53, 41.47], [1.0, 41.25], [0.75, 41.35], [0.5, 41.25], [0.25, 41.35], [0.0, 41.25], [-0.25, 41.35], [-0.5, 41.25], [-0.75, 41.35], [-0.82, 41.32], [-0.85, 41.25], [-0.75, 41.0], [-0.85, 40.75], [-0.75, 40.5], [-0.97, 39.97], [-1.5, 39.75], [-1.75, 39.85], [-2.0, 39.75], [-2.53, 39.97], [-2.68, 40.32], [-2.75, 40.35], [-2.82, 40.32], [-2.97, 39.97], [-3.32, 39.82], [-3.35, 39.75], [-3.25, 39.5], [-3.35, 39.25], [-3.25, 39.0], [-3.47, 38.47], [-3.82, 38.32], [-3.97, 37.97], [-4.5, 37.75], [-4.75, 37.85], [-5.0, 37.75], [-5.25, 37.85], [-5.32, 37.82], [-5.47, 37.47], [-6.0, 37.25], [-6.25, 37.35], [-6.32, 37.32], [-6.47, 36.97], [-7.0, 36.75], [-7.25, 36.85], [-7.5, 36.75], [-7.75, 36.85], [-8.0, 36.75], [-8.53, 36.97], [-8.75, 37.5], [-8.65, 37.75], [-8.75, 38.0], [-8.65, 38.25], [-8.68, 38.32], [-8.75, 38.35], [-9.0, 38.25], [-9.53, 38.47], [-9.75, 39.0], [-9.53, 39.53], [-9.18, 39.68], [-9.15, 39.75], [-9.25, 40.0]], [[1.32, 43.82], [1.2, 43.88], [1.13, 43.7], [1.25, 43.65], [1.38, 43.7], [1.32, 43.82]]]]}, "2016-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 40.0], [-9.15, 40.25], [-9.25, 40.5], [-9.15, 40.75], [-9.25, 41.0], [-9.15, 41.25], [-9.25, 41.5], [-9.15, 41.75], [-9.25, 42.0], [-9.15, 42.25], [-9.25, 42.5], [-9.03, 43.03], [-8.68, 43.18], [-8.65, 43.25], [-8.75, 43.5], [-8.53, 44.03], [-8.0, 44.25], [-7.5, 44.04], [-7.18, 44.18], [-7.03, 44.53], [-6.68, 44.68], [-6.53, 45.03], [-6.0, 45.25], [-5.75, 45.15], [-5.5, 45.25], [-5.25, 45.15], [-5.0, 45.25], [-4.75, 45.15], [-4.5, 45.25], [-4.25, 45.15], [-4.0, 45.25], [-3.75, 45.15], [-3.68, 45.18], [-3.53, 45.53], [-3.0, 45.75], [-2.75, 45.65], [-2.5, 45.75], [-2.25, 45.65], [-2.0, 45.75], [-1.75, 45.65], [-1.5, 45.75], [-1.25, 45.65], [-1.0, 45.75], [-0.75, 45.65], [-0.5, 45.75], [0.03, 45.53], [0.18, 45.18], [0.25, 45.15], [0.5, 45.25], [1.0, 45.04], [1.5, 45.25], [1.75, 45.15], [1.82, 45.18], [1.97, 45.53], [2.5, 45.75], [3.03, 45.53], [3.18, 45.18], [3.53, 45.03], [3.75, 44.5], [3.65, 44.25], [3.75, 44.0], [3.65, 43.75], [3.68, 43.68], [4.03, 43.53], [4.18, 43.18], [4.25, 43.15], [4.5, 43.25], [5.03, 43.03], [5.18, 42.68], [5.53, 42.53], [5.75, 42.0], [5.53, 41.47], [5.0, 41.25], [4.75, 41.35], [4.5, 41.25], [4.25, 41.35], [4.0, 41.25], [3.47, 41.47], [3.32, 41.82], [3.25, 41.85], [3.0, 41.75], [2.75, 41.85], [2.5, 41.75], [2.25, 41.85], [2.0, 41.75], [1.75, 41.85], [1.68, 41.82], [1.53, 41.47], [1.0, 41.25], [0.75, 41.35], [0.5, 41.25], [0.25, 41.35], [0.0, 41.25], [-0.25, 41.35], [-0.5, 41.25], [-0.75, 41.35], [-0.82, 41.32], [-0.85, 41.25], [-0.75, 41.0], [-0.85, 40.75], [-0.75, 40.5], [-0.97, 39.97], [-1.5, 39.75], [-1.75, 39.85], [-2.0, 39.75], [-2.53, 39.97], [-2.68, 40.32], [-2.75, 40.35], [-2.82, 40.32], [-2.97, 39.97], [-3.32, 39.82], [-3.35, 39.75], [-3.25, 39.5], [-3.35, 39.25], [-3.25, 39.0], [-3.47, 38.47], [-3.82, 38.32], [-3.97, 37.97], [-4.5, 37.75], [-4.75, 37.85], [-5.0, 37.75], [-5.25, 37.85], [-5.32, 37.82], [-5.47, 37.47], [-6.0, 37.25], [-6.25, 37.35], [-6.32, 37.32], [-6.47, 36.97], [-7.0, 36.75], [-7.25, 36.85], [-7.5, 36.75], [-7.75, 36.85], [-8.0, 36.75], [-8.53, 36.97], [-8.75, 37.5], [-8.65, 37.75], [-8.75, 38.0], [-8.65, 38.25], [-8.68, 38.32], [-8.75, 38.35], [-9.0, 38.25], [-9.53, 38.47], [-9.75, 39.0], [-9.53, 39.53], [-9.18, 39.68], [-9.15, 39.75], [-9.25, 40.0]], [[1.32, 43.82], [1.2, 43.88], [1.13, 43.7], [1.25, 43.65], [1.38, 43.7], [1.32, 43.82]]]]}, "2016-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.03, 42.03], [-7.5, 42.25], [-7.25, 42.15], [-7.18, 42.18], [-7.03, 42.53], [-6.68, 42.68], [-6.65, 42.75], [-6.68, 42.82], [-7.03, 42.97], [-7.25, 43.5], [-7.03, 44.03], [-6.5, 44.25], [-6.25, 44.15], [-6.0, 44.25], [-5.75, 44.15], [-5.5, 44.25], [-5.25, 44.15], [-5.0, 44.25], [-4.5, 44.04], [-4.0, 44.25], [-3.75, 44.15], [-3.5, 44.25], [-3.25, 44.15], [-3.18, 44.18], [-3.15, 44.25], [-3.18, 44.32], [-3.53, 44.47], [-3.75, 45.0], [-3.53, 45.53], [-3.0, 45.75], [-2.75, 45.65], [-2.5, 45.75], [-2.25, 45.65], [-2.0, 45.75], [-1.75, 45.65], [-1.5, 45.75], [-1.25, 45.65], [-1.0, 45.75], [-0.75, 45.65], [-0.5, 45.75], [0.03, 45.53], [0.18, 45.18], [0.25, 45.15], [0.5, 45.25], [1.0, 45.04], [1.5, 45.25], [1.75, 45.15], [1.82, 45.18], [1.97, 45.53], [2.5, 45.75], [3.03, 45.53], [3.18, 45.18], [3.53, 45.03], [3.75, 44.5], [3.65, 44.25], [3.75, 44.0], [3.65, 43.75], [3.68, 43.68], [4.03, 43.53], [4.18, 43.18], [4.25, 43.15], [4.5, 43.25], [5.03, 43.03], [5.18, 42.68], [5.53, 42.53], [5.75, 42.0], [5.53, 41.47], [5.0, 41.25], [4.75, 41.35], [4.5, 41.25], [4.25, 41.35], [4.0, 41.25], [3.47, 41.47], [3.32, 41.82], [3.25, 41.85], [3.0, 41.75], [2.75, 41.85], [2.5, 41.75], [2.25, 41.85], [2.0, 41.75], [1.75, 41.85], [1.68, 41.82], [1.53, 41.47], [1.0, 41.25], [0.75, 41.35], [0.5, 41.25], [0.25, 41.35], [0.0, 41.25], [-0.25, 41.35], [-0.5, 41.25], [-0.75, 41.35], [-0.82, 41.32], [-0.85, 41.25], [-0.75, 41.0], [-0.85, 40.75], [-0.75, 40.5], [-0.97, 39.97], [-1.5, 39.75], [-1.75, 39.85], [-2.0, 39.75], [-2.53, 39.97], [-2.68, 40.32], [-2.75, 40.35], [-3.0, 40.25], [-3.25, 40.35], [-3.5, 40.25], [-3.75, 40.35], [-3.82, 40.32], [-3.97, 39.97], [-4.5, 39.75], [-4.75, 39.85], [-5.0, 39.75], [-5.25, 39.85], [-5.5, 39.75], [-5.75, 39.85], [-6.0, 39.75], [-6.25, 39.85], [-6.5, 39.75], [-7.03, 39.97], [-7.18, 40.32], [-7.25, 40.35], [-7.5, 40.25], [-8.03, 40.47], [-8.25, 41.0], [-8.15, 41.25], [-8.25, 41.5], [-8.03, 42.03]], [[1.32, 43.82], [1.2, 43.88], [1.13, 43.7], [1.25, 43.65], [1.38, 43.7], [1.32, 43.82]]]]}, "2016-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.5, 42.75], [-3.25, 42.65], [-3.18, 42.68], [-3.03, 43.03], [-2.68, 43.18], [-2.53, 43.53], [-2.0, 43.75], [-1.5, 43.54], [-1.0, 43.75], [-0.75, 43.65], [-0.5, 43.75], [-0.25, 43.65], [0.0, 43.75], [0.25, 43.65], [0.5, 43.75], [0.75, 43.65], [1.0, 43.75], [1.25, 43.65], [1.38, 43.7], [1.25, 44.0], [1.47, 44.53], [2.0, 44.75], [2.25, 44.65], [2.5, 44.75], [3.03, 44.53], [3.25, 44.0], [3.15, 43.75], [3.2, 43.62], [3.5, 43.75], [4.03, 43.53], [4.18, 43.18], [4.25, 43.15], [4.5, 43.25], [5.03, 43.03], [5.18, 42.68], [5.53, 42.53], [5.75, 42.0], [5.53, 41.47], [5.0, 41.25], [4.75, 41.35], [4.5, 41.25], [4.25, 41.35], [4.0, 41.25], [3.47, 41.47], [3.32, 41.82], [3.0, 41.96], [2.5, 41.75], [2.25, 41.85], [2.0, 41.75], [1.75, 41.85], [1.5, 41.75], [1.25, 41.85], [1.0, 41.75], [0.75, 41.85], [0.5, 41.75], [-0.03, 41.97], [-0.18, 42.32], [-0.25, 42.35], [-0.5, 42.25], [-0.75, 42.35], [-0.87, 42.3], [-0.75, 42.0], [-0.85, 41.75], [-0.75, 41.5], [-0.85, 41.25], [-0.75, 41.0], [-0.85, 40.75], [-0.75, 40.5], [-0.97, 39.97], [-1.5, 39.75], [-2.03, 39.97], [-2.18, 40.32], [-2.53, 40.47], [-2.75, 41.0], [-2.65, 41.25], [-2.68, 41.32], [-2.75, 41.35], [-2.82, 41.32], [-2.97, 40.97], [-3.5, 40.75], [-3.75, 40.85], [-4.0, 40.75], [-4.53, 40.97], [-4.75, 41.5], [-4.53, 42.03], [-4.18, 42.18], [-4.03, 42.53], [-3.5, 42.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.219270448797772}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.194928028997842}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.30681494297204, 14.122321870612382, 13.646891158631774, 14.466044706008233, 13.901232054868842, 13.815048741965995]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.30681494297204, 7.6269483995944825, 6.776466792635631, 6.837978819417685, 5.756006671176237, 7.297173251907566]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.88517192361553, -5.520769977761712, -5.556622684208794, -4.949005086752245, -4.8926698335083945, -4.528767149977608]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.88517192361553, -7.7071818229224505, -8.219270448797772, -7.207597874138685, -6.901409307546828, -5.812530299623404]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3004858145200766, -1.6412709040180076, -1.7394730424147362, -1.5824848553977928, -1.5705216336760692, -1.4677459616633564]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3004858145200766, -2.127039070716119, -2.3542426231154976, -2.1076049345797165, -2.27642099648535, -1.8183124294532858]}}