{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:09.895468", "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-Nov-22_to_2015-Nov-25_354.5_35.5"}, "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": 2015110000659}, "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": "November 22 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 25 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 56108.139884324075}, "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": ["Morocco", "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": ["Africa", "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": ["Strait of Gibraltar"]}, "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": 35.5}, "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": 354.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "354.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 352.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 355.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.15, 36.25], [-6.25, 36.5], [-6.03, 37.03], [-5.68, 37.18], [-5.53, 37.53], [-5.0, 37.75], [-4.47, 37.53], [-4.25, 37.0], [-4.47, 36.47], [-4.82, 36.32], [-4.85, 36.25], [-4.75, 36.0], [-4.85, 35.75], [-4.75, 35.5], [-4.97, 34.97], [-5.5, 34.75], [-6.03, 34.97], [-6.25, 35.5], [-6.15, 35.75], [-6.25, 36.0], [-6.15, 36.25]]]]}, "2015-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, 33.5], [-8.03, 34.03], [-7.5, 34.25], [-7.25, 34.15], [-7.18, 34.18], [-7.03, 34.53], [-6.5, 34.75], [-6.25, 34.65], [-6.18, 34.68], [-6.15, 34.75], [-6.25, 35.0], [-6.15, 35.25], [-6.25, 35.5], [-6.15, 35.75], [-6.18, 35.82], [-6.53, 35.97], [-6.75, 36.5], [-6.53, 37.03], [-6.0, 37.25], [-5.75, 37.15], [-5.68, 37.18], [-5.53, 37.53], [-5.0, 37.75], [-4.47, 37.53], [-4.25, 37.0], [-4.47, 36.47], [-4.82, 36.32], [-4.85, 36.25], [-4.75, 36.0], [-4.85, 35.75], [-4.82, 35.68], [-4.47, 35.53], [-4.25, 35.0], [-4.37, 34.7], [-3.97, 34.53], [-3.75, 34.0], [-3.85, 33.75], [-3.75, 33.5], [-3.97, 32.97], [-4.5, 32.75], [-4.75, 32.85], [-5.0, 32.75], [-5.25, 32.85], [-5.5, 32.75], [-5.75, 32.85], [-5.82, 32.82], [-5.97, 32.47], [-6.5, 32.25], [-6.75, 32.35], [-7.0, 32.25], [-7.53, 32.47], [-7.68, 32.82], [-8.03, 32.97], [-8.25, 33.5]]]]}, "2015-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, 33.5], [-8.03, 34.03], [-7.5, 34.25], [-7.25, 34.15], [-7.18, 34.18], [-7.03, 34.53], [-6.5, 34.75], [-6.25, 34.65], [-6.18, 34.68], [-6.15, 34.75], [-6.25, 35.0], [-6.15, 35.25], [-6.25, 35.5], [-6.15, 35.75], [-6.18, 35.82], [-6.53, 35.97], [-6.75, 36.5], [-6.53, 37.03], [-6.0, 37.25], [-5.75, 37.15], [-5.68, 37.18], [-5.53, 37.53], [-5.0, 37.75], [-4.47, 37.53], [-4.25, 37.0], [-4.47, 36.47], [-4.82, 36.32], [-4.85, 36.25], [-4.75, 36.0], [-4.85, 35.75], [-4.82, 35.68], [-4.47, 35.53], [-4.25, 35.0], [-4.37, 34.7], [-3.97, 34.53], [-3.75, 34.0], [-3.85, 33.75], [-3.75, 33.5], [-3.97, 32.97], [-4.5, 32.75], [-4.75, 32.85], [-5.0, 32.75], [-5.25, 32.85], [-5.5, 32.75], [-5.75, 32.85], [-5.82, 32.82], [-5.97, 32.47], [-6.5, 32.25], [-6.75, 32.35], [-7.0, 32.25], [-7.53, 32.47], [-7.68, 32.82], [-8.03, 32.97], [-8.25, 33.5]]]]}, "2015-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, 33.5], [-8.03, 34.03], [-7.5, 34.25], [-7.25, 34.15], [-7.18, 34.18], [-7.03, 34.53], [-6.5, 34.75], [-6.25, 34.65], [-6.18, 34.68], [-6.15, 34.75], [-6.25, 35.0], [-6.15, 35.25], [-6.25, 35.5], [-6.12, 35.8], [-6.53, 35.97], [-6.75, 36.5], [-6.53, 37.03], [-6.0, 37.25], [-5.47, 37.03], [-5.25, 36.5], [-5.37, 36.2], [-4.97, 36.03], [-4.82, 35.68], [-4.47, 35.53], [-4.25, 35.0], [-4.37, 34.7], [-3.97, 34.53], [-3.75, 34.0], [-3.85, 33.75], [-3.75, 33.5], [-3.97, 32.97], [-4.5, 32.75], [-4.75, 32.85], [-5.0, 32.75], [-5.25, 32.85], [-5.5, 32.75], [-5.75, 32.85], [-5.82, 32.82], [-5.97, 32.47], [-6.5, 32.25], [-6.75, 32.35], [-7.0, 32.25], [-7.53, 32.47], [-7.68, 32.82], [-8.03, 32.97], [-8.25, 33.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.8354826427415105}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.7337837599271166}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.274491386663328, 8.719647938666355, 8.320673104389982, 9.34021127070912]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.104383797731714, 1.7155856570845458, 1.709066570261541, 3.6980601220868152]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.8684950060617496, -4.024691252765039, -4.241548744948949, -2.991171154798005]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.639201509829263, -5.8354826427415105, -5.627800661977233, -3.4396308389603973]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.41124830210493, -1.7347378877662598, -1.905344124702915, -1.388993893583362]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4691000650712112, -2.181157948707215, -2.1490677338530557, -1.4996980323318596]}}