{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:48.902245", "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": "2017-Dec-27_to_2018-Jan-05_359.0_38.0"}, "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": 2017120002652}, "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": "December 27 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 05 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 291065.8600478977}, "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": ["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": ["Alboran Sea", "Balearic (Iberian Sea)", "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": 38.0}, "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": 359.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "359.0\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": 362.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.25, 38.0], [-2.03, 38.53], [-1.5, 38.75], [-1.25, 38.65], [-1.0, 38.75], [-0.75, 38.65], [-0.5, 38.75], [0.03, 38.53], [0.25, 38.0], [0.03, 37.47], [-0.32, 37.32], [-0.47, 36.97], [-1.0, 36.75], [-1.25, 36.85], [-1.32, 36.82], [-1.47, 36.47], [-2.0, 36.25], [-2.53, 36.47], [-2.75, 37.0], [-2.53, 37.53], [-2.18, 37.68], [-2.15, 37.75], [-2.25, 38.0]]]]}, "2017-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.03, 41.03], [-8.68, 41.18], [-8.53, 41.53], [-8.0, 41.75], [-7.75, 41.65], [-7.5, 41.75], [-6.97, 41.53], [-6.82, 41.18], [-6.75, 41.15], [-6.5, 41.25], [-6.25, 41.15], [-6.0, 41.25], [-5.47, 41.03], [-5.32, 40.68], [-5.25, 40.65], [-5.18, 40.68], [-5.03, 41.03], [-4.5, 41.25], [-4.25, 41.15], [-4.0, 41.25], [-3.75, 41.15], [-3.5, 41.25], [-2.97, 41.03], [-2.82, 40.68], [-2.75, 40.65], [-2.5, 40.75], [-2.25, 40.65], [-2.0, 40.75], [-1.75, 40.65], [-1.5, 40.75], [-1.25, 40.65], [-1.0, 40.75], [-0.47, 40.53], [-0.32, 40.18], [0.03, 40.03], [0.25, 39.5], [0.15, 39.25], [0.18, 39.18], [0.53, 39.03], [0.75, 38.5], [0.65, 38.25], [0.68, 38.18], [1.03, 38.03], [1.25, 37.5], [1.03, 36.97], [0.5, 36.75], [0.25, 36.85], [0.0, 36.75], [-0.5, 36.96], [-1.0, 36.75], [-1.25, 36.85], [-1.32, 36.82], [-1.47, 36.47], [-2.0, 36.25], [-2.25, 36.35], [-2.5, 36.25], [-2.75, 36.35], [-3.0, 36.25], [-3.5, 36.46], [-4.0, 36.25], [-4.53, 36.47], [-4.75, 37.0], [-4.62, 37.3], [-4.75, 37.35], [-5.0, 37.25], [-5.25, 37.35], [-5.32, 37.32], [-5.47, 36.97], [-6.0, 36.75], [-6.25, 36.85], [-6.5, 36.75], [-7.03, 36.97], [-7.18, 37.32], [-7.25, 37.35], [-7.5, 37.25], [-8.03, 37.47], [-8.25, 38.0], [-8.15, 38.25], [-8.25, 38.5], [-8.15, 38.75], [-8.18, 38.82], [-8.5, 38.96], [-9.0, 38.75], [-9.53, 38.97], [-9.75, 39.5], [-9.53, 40.03], [-9.18, 40.18], [-9.15, 40.25], [-9.25, 40.5], [-9.03, 41.03]]], [[[0.97, 38.47], [0.75, 39.0], [0.97, 39.53], [1.5, 39.75], [2.03, 39.53], [2.25, 39.0], [2.03, 38.47], [1.5, 38.25], [0.97, 38.47]]]]}, "2017-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 40.5], [-9.03, 41.03], [-8.68, 41.18], [-8.53, 41.53], [-8.0, 41.75], [-7.75, 41.65], [-7.5, 41.75], [-6.97, 41.53], [-6.82, 41.18], [-6.75, 41.15], [-6.5, 41.25], [-6.25, 41.15], [-6.0, 41.25], [-5.47, 41.03], [-5.32, 40.68], [-5.25, 40.65], [-5.18, 40.68], [-5.03, 41.03], [-4.5, 41.25], [-4.25, 41.15], [-4.0, 41.25], [-3.75, 41.15], [-3.5, 41.25], [-2.97, 41.03], [-2.82, 40.68], [-2.75, 40.65], [-2.5, 40.75], [-2.25, 40.65], [-2.0, 40.75], [-1.75, 40.65], [-1.5, 40.75], [-1.25, 40.65], [-1.0, 40.75], [-0.47, 40.53], [-0.32, 40.18], [0.0, 40.04], [0.5, 40.25], [0.75, 40.15], [1.0, 40.25], [1.25, 40.15], [1.5, 40.25], [2.03, 40.03], [2.18, 39.68], [2.53, 39.53], [2.68, 39.18], [3.03, 39.03], [3.25, 38.5], [3.15, 38.25], [3.25, 38.0], [3.03, 37.47], [2.5, 37.25], [2.25, 37.35], [2.0, 37.25], [1.75, 37.35], [1.5, 37.25], [1.25, 37.35], [1.18, 37.32], [1.03, 36.97], [0.5, 36.75], [0.25, 36.85], [0.0, 36.75], [-0.5, 36.96], [-1.0, 36.75], [-1.25, 36.85], [-1.32, 36.82], [-1.47, 36.47], [-2.0, 36.25], [-2.25, 36.35], [-2.5, 36.25], [-2.75, 36.35], [-3.0, 36.25], [-3.3, 36.38], [-3.47, 35.97], [-4.0, 35.75], [-4.53, 35.97], [-4.75, 36.5], [-4.65, 36.75], [-4.75, 37.0], [-4.62, 37.3], [-4.75, 37.35], [-5.0, 37.25], [-5.25, 37.35], [-5.32, 37.32], [-5.47, 36.97], [-6.0, 36.75], [-6.25, 36.85], [-6.5, 36.75], [-7.03, 36.97], [-7.18, 37.32], [-7.25, 37.35], [-7.5, 37.25], [-8.03, 37.47], [-8.25, 38.0], [-8.15, 38.25], [-8.25, 38.5], [-8.15, 38.75], [-8.18, 38.82], [-8.5, 38.96], [-9.0, 38.75], [-9.53, 38.97], [-9.75, 39.5], [-9.53, 40.03], [-9.18, 40.18], [-9.15, 40.25], [-9.25, 40.5]]]]}, "2017-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 40.5], [-9.03, 41.03], [-8.68, 41.18], [-8.53, 41.53], [-8.0, 41.75], [-7.75, 41.65], [-7.5, 41.75], [-6.97, 41.53], [-6.82, 41.18], [-6.75, 41.15], [-6.5, 41.25], [-6.25, 41.15], [-6.0, 41.25], [-5.47, 41.03], [-5.32, 40.68], [-5.25, 40.65], [-5.18, 40.68], [-5.03, 41.03], [-4.5, 41.25], [-4.25, 41.15], [-4.0, 41.25], [-3.75, 41.15], [-3.5, 41.25], [-2.97, 41.03], [-2.82, 40.68], [-2.75, 40.65], [-2.5, 40.75], [-2.25, 40.65], [-2.0, 40.75], [-1.75, 40.65], [-1.5, 40.75], [-1.25, 40.65], [-1.0, 40.75], [-0.47, 40.53], [-0.32, 40.18], [0.0, 40.04], [0.5, 40.25], [0.75, 40.15], [1.0, 40.25], [1.25, 40.15], [1.5, 40.25], [2.03, 40.03], [2.18, 39.68], [2.53, 39.53], [2.68, 39.18], [3.03, 39.03], [3.25, 38.5], [3.15, 38.25], [3.25, 38.0], [3.03, 37.47], [2.5, 37.25], [2.25, 37.35], [2.0, 37.25], [1.75, 37.35], [1.5, 37.25], [1.25, 37.35], [1.18, 37.32], [1.03, 36.97], [0.5, 36.75], [0.25, 36.85], [0.0, 36.75], [-0.53, 36.97], [-0.68, 37.32], [-0.75, 37.35], [-1.0, 37.25], [-1.25, 37.35], [-1.32, 37.32], [-1.47, 36.97], [-1.82, 36.82], [-1.97, 36.47], [-2.5, 36.25], [-2.75, 36.35], [-3.0, 36.25], [-3.3, 36.38], [-3.47, 35.97], [-4.0, 35.75], [-4.53, 35.97], [-4.75, 36.5], [-4.65, 36.75], [-4.75, 37.0], [-4.62, 37.3], [-4.75, 37.35], [-5.0, 37.25], [-5.25, 37.35], [-5.32, 37.32], [-5.47, 36.97], [-6.0, 36.75], [-6.25, 36.85], [-6.5, 36.75], [-7.03, 36.97], [-7.18, 37.32], [-7.25, 37.35], [-7.5, 37.25], [-8.03, 37.47], [-8.25, 38.0], [-8.15, 38.25], [-8.25, 38.5], [-8.15, 38.75], [-8.18, 38.82], [-8.5, 38.96], [-9.0, 38.75], [-9.53, 38.97], [-9.75, 39.5], [-9.53, 40.03], [-9.18, 40.18], [-9.15, 40.25], [-9.25, 40.5]]]]}, "2017-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.53, 35.97], [-4.75, 36.5], [-4.53, 37.03], [-4.0, 37.25], [-3.47, 37.03], [-3.25, 36.5], [-3.47, 35.97], [-4.0, 35.75], [-4.53, 35.97]]], [[[-3.25, 37.0], [-3.03, 37.53], [-2.5, 37.75], [-1.97, 37.53], [-1.75, 37.0], [-1.97, 36.47], [-2.5, 36.25], [-3.03, 36.47], [-3.25, 37.0]]], [[[-0.65, 38.75], [-0.75, 39.0], [-0.53, 39.53], [-0.18, 39.68], [-0.03, 40.03], [0.5, 40.25], [0.75, 40.15], [1.0, 40.25], [1.25, 40.15], [1.5, 40.25], [2.03, 40.03], [2.18, 39.68], [2.53, 39.53], [2.68, 39.18], [3.03, 39.03], [3.25, 38.5], [3.15, 38.25], [3.25, 38.0], [3.03, 37.47], [2.5, 37.25], [2.25, 37.35], [2.0, 37.25], [1.75, 37.35], [1.5, 37.25], [1.25, 37.35], [1.18, 37.32], [1.03, 36.97], [0.5, 36.75], [0.25, 36.85], [0.0, 36.75], [-0.53, 36.97], [-0.75, 37.5], [-0.65, 37.75], [-0.75, 38.0], [-0.65, 38.25], [-0.75, 38.5], [-0.65, 38.75]]]]}, "2018-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.0, 39.25], [0.53, 39.03], [0.75, 38.5], [0.53, 37.97], [0.0, 37.75], [-0.3, 37.88], [-0.47, 37.47], [-1.0, 37.25], [-1.53, 37.47], [-1.75, 38.0], [-1.53, 38.53], [-1.0, 38.75], [-0.7, 38.62], [-0.53, 39.03], [0.0, 39.25]]]]}, "2018-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.5, 39.25], [-0.25, 39.15], [0.0, 39.25], [0.25, 39.15], [0.5, 39.25], [1.03, 39.03], [1.25, 38.5], [1.03, 37.97], [0.5, 37.75], [0.25, 37.85], [0.18, 37.82], [0.03, 37.47], [-0.5, 37.25], [-0.75, 37.35], [-1.0, 37.25], [-1.53, 37.47], [-1.75, 38.0], [-1.53, 38.53], [-1.18, 38.68], [-1.03, 39.03], [-0.5, 39.25]]]]}, "2018-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 39.03], [-1.5, 39.25], [-1.25, 39.15], [-1.0, 39.25], [-0.75, 39.15], [-0.5, 39.25], [-0.25, 39.15], [0.0, 39.25], [0.25, 39.15], [0.5, 39.25], [1.03, 39.03], [1.25, 38.5], [1.03, 37.97], [0.5, 37.75], [0.25, 37.85], [0.18, 37.82], [0.03, 37.47], [-0.5, 37.25], [-0.75, 37.35], [-1.0, 37.25], [-1.25, 37.35], [-1.5, 37.25], [-2.03, 37.47], [-2.25, 38.0], [-2.15, 38.25], [-2.25, 38.5], [-2.03, 39.03]]]]}, "2018-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 39.03], [-1.5, 39.25], [-1.25, 39.15], [-1.0, 39.25], [-0.75, 39.15], [-0.5, 39.25], [-0.25, 39.15], [0.0, 39.25], [0.25, 39.15], [0.5, 39.25], [1.03, 39.03], [1.25, 38.5], [1.03, 37.97], [0.5, 37.75], [0.25, 37.85], [0.18, 37.82], [0.03, 37.47], [-0.5, 37.25], [-0.75, 37.35], [-1.0, 37.25], [-1.25, 37.35], [-1.5, 37.25], [-2.03, 37.47], [-2.25, 38.0], [-2.15, 38.25], [-2.25, 38.5], [-2.03, 39.03]]]]}, "2018-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 39.03], [-1.5, 39.25], [-1.25, 39.15], [-1.0, 39.25], [-0.75, 39.15], [-0.5, 39.25], [0.03, 39.03], [0.25, 38.5], [0.03, 37.97], [-0.32, 37.82], [-0.47, 37.47], [-1.0, 37.25], [-1.25, 37.35], [-1.5, 37.25], [-2.03, 37.47], [-2.25, 38.0], [-2.15, 38.25], [-2.25, 38.5], [-2.03, 39.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.599369038810266}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.467150313723889}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.84955078975662, 12.272484227438895, 13.394994937164597, 12.85728243132678, 16.032544390636076, 15.03425075347127, 15.424552108077592, 15.289639975546493, 15.681788549566363, 12.632488532288107]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.048887814131774, 17.519238803819633, 17.805338838143484, 17.406502936915388, 16.603784238091805, 15.530532466417014, 16.283882691814085, 17.50510377869415, 17.40311259177838, 13.889694412938809]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.880883569915312, 4.4140840687052405, 4.965710518635707, 4.5077598389737865, 2.2425427710917747, 3.370639887593825, 3.436049765325163, 4.687464348575304, 4.975033953338418, 3.675151656159642]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.9294260521898536, 5.80028352850195, 6.599369038810266, 6.203450693088087, 3.7313062743331216, 3.785989485570042, 4.658528377856044, 6.334379757880981, 6.280462718554418, 3.846478807389758]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3375865119700565, 1.6305219517836573, 2.0061032373532166, 1.829253558941936, 1.56481475575102, 1.5056563566653849, 1.7147241689821477, 2.1694789557622767, 2.2022094235819685, 1.4302165355827232]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5238137280902193, 2.1578396638045514, 2.5632690936558498, 2.2751021969373455, 1.7896789610868642, 1.5805268762648514, 1.9496934280744966, 2.5039912272667317, 2.38185273169952, 1.4758336610612146]}}