{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:32.423542", "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": "2018-Mar-16_to_2018-Mar-20_261.5_23.0"}, "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": 2018030002227}, "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": "March 16 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 20 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 418891.3010374754}, "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": ["Mexico", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "N.Central-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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 Mexico"]}, "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": 23.0}, "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": 261.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "261.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 257.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 268.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.25, 27.5], [-97.15, 27.75], [-97.25, 28.0], [-97.03, 28.53], [-96.68, 28.68], [-96.53, 29.03], [-96.0, 29.25], [-95.75, 29.15], [-95.68, 29.18], [-95.53, 29.53], [-95.18, 29.68], [-95.03, 30.03], [-94.5, 30.25], [-94.25, 30.15], [-94.0, 30.25], [-93.75, 30.15], [-93.5, 30.25], [-93.25, 30.15], [-93.0, 30.25], [-92.47, 30.03], [-92.32, 29.68], [-91.97, 29.53], [-91.75, 29.0], [-91.97, 28.47], [-92.5, 28.25], [-92.75, 28.35], [-92.82, 28.32], [-92.97, 27.97], [-93.5, 27.75], [-93.75, 27.85], [-93.82, 27.82], [-93.97, 27.47], [-94.5, 27.25], [-94.75, 27.35], [-94.82, 27.32], [-94.97, 26.97], [-95.5, 26.75], [-95.75, 26.85], [-95.82, 26.82], [-95.85, 26.75], [-95.75, 26.5], [-95.97, 25.97], [-96.5, 25.75], [-97.03, 25.97], [-97.25, 26.5], [-97.15, 26.75], [-97.25, 27.0], [-97.15, 27.25], [-97.25, 27.5]]], [[[-98.0, 31.75], [-97.75, 31.65], [-97.5, 31.75], [-96.97, 31.53], [-96.75, 31.0], [-96.85, 30.75], [-96.75, 30.5], [-96.97, 29.97], [-97.5, 29.75], [-97.75, 29.85], [-98.0, 29.75], [-98.53, 29.97], [-98.75, 30.5], [-98.65, 30.75], [-98.75, 31.0], [-98.53, 31.53], [-98.0, 31.75]]]]}, "2018-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.75, 20.0], [-99.53, 20.53], [-99.0, 20.75], [-98.75, 20.65], [-98.68, 20.68], [-98.53, 21.03], [-98.0, 21.25], [-97.47, 21.03], [-97.25, 20.5], [-97.47, 19.97], [-97.82, 19.82], [-97.97, 19.47], [-98.5, 19.25], [-98.75, 19.35], [-99.0, 19.25], [-99.53, 19.47], [-99.75, 20.0]]], [[[-101.5, 29.25], [-101.25, 29.15], [-101.0, 29.25], [-100.75, 29.15], [-100.5, 29.25], [-100.25, 29.15], [-100.18, 29.18], [-100.15, 29.25], [-100.25, 29.5], [-100.03, 30.03], [-99.5, 30.25], [-99.25, 30.15], [-99.18, 30.18], [-99.03, 30.53], [-98.68, 30.68], [-98.65, 30.75], [-98.75, 31.0], [-98.53, 31.53], [-98.0, 31.75], [-97.75, 31.65], [-97.5, 31.75], [-96.97, 31.53], [-96.75, 31.0], [-96.85, 30.75], [-96.82, 30.68], [-96.5, 30.54], [-96.0, 30.75], [-95.75, 30.65], [-95.68, 30.68], [-95.65, 30.75], [-95.75, 31.0], [-95.53, 31.53], [-95.0, 31.75], [-94.75, 31.65], [-94.68, 31.68], [-94.53, 32.03], [-94.0, 32.25], [-93.75, 32.15], [-93.5, 32.25], [-93.25, 32.15], [-93.0, 32.25], [-92.47, 32.03], [-92.25, 31.5], [-92.35, 31.25], [-92.32, 31.18], [-91.97, 31.03], [-91.75, 30.5], [-91.96, 30.0], [-91.82, 29.68], [-91.47, 29.53], [-91.25, 29.0], [-91.47, 28.47], [-92.0, 28.25], [-92.25, 28.35], [-92.5, 28.25], [-92.75, 28.35], [-92.82, 28.32], [-92.97, 27.97], [-93.5, 27.75], [-93.75, 27.85], [-93.82, 27.82], [-93.97, 27.47], [-94.5, 27.25], [-94.75, 27.35], [-94.82, 27.32], [-94.97, 26.97], [-95.5, 26.75], [-95.75, 26.85], [-95.82, 26.82], [-95.85, 26.75], [-95.75, 26.5], [-95.97, 25.97], [-96.5, 25.75], [-96.75, 25.85], [-96.82, 25.82], [-96.85, 25.75], [-96.75, 25.5], [-96.97, 24.97], [-97.32, 24.82], [-97.35, 24.75], [-97.25, 24.5], [-97.35, 24.25], [-97.25, 24.0], [-97.35, 23.75], [-97.25, 23.5], [-97.35, 23.25], [-97.25, 23.0], [-97.47, 22.47], [-97.82, 22.32], [-97.97, 21.97], [-98.5, 21.75], [-99.03, 21.97], [-99.18, 22.32], [-99.53, 22.47], [-99.75, 23.0], [-99.65, 23.25], [-99.68, 23.32], [-100.03, 23.47], [-100.25, 24.0], [-100.15, 24.25], [-100.25, 24.5], [-100.15, 24.75], [-100.25, 25.0], [-100.12, 25.3], [-100.25, 25.35], [-100.5, 25.25], [-100.75, 25.35], [-101.0, 25.25], [-101.53, 25.47], [-101.75, 26.0], [-101.65, 26.25], [-101.75, 26.5], [-101.65, 26.75], [-101.68, 26.82], [-101.75, 26.85], [-102.0, 26.75], [-102.53, 26.97], [-102.75, 27.5], [-102.53, 28.03], [-102.12, 28.2], [-102.25, 28.5], [-102.03, 29.03], [-101.5, 29.25]]]]}, "2018-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 29.03], [-101.5, 29.25], [-101.25, 29.15], [-101.0, 29.25], [-100.75, 29.15], [-100.5, 29.25], [-100.25, 29.15], [-100.18, 29.18], [-100.15, 29.25], [-100.25, 29.5], [-100.03, 30.03], [-99.5, 30.25], [-99.25, 30.15], [-99.18, 30.18], [-99.03, 30.53], [-98.68, 30.68], [-98.65, 30.75], [-98.75, 31.0], [-98.53, 31.53], [-98.0, 31.75], [-97.75, 31.65], [-97.5, 31.75], [-96.97, 31.53], [-96.75, 31.0], [-96.85, 30.75], [-96.82, 30.68], [-96.5, 30.54], [-96.0, 30.75], [-95.75, 30.65], [-95.68, 30.68], [-95.65, 30.75], [-95.75, 31.0], [-95.53, 31.53], [-95.0, 31.75], [-94.75, 31.65], [-94.68, 31.68], [-94.53, 32.03], [-94.0, 32.25], [-93.75, 32.15], [-93.5, 32.25], [-93.25, 32.15], [-93.0, 32.25], [-92.47, 32.03], [-92.25, 31.5], [-92.35, 31.25], [-92.32, 31.18], [-91.97, 31.03], [-91.75, 30.5], [-91.96, 30.0], [-91.82, 29.68], [-91.47, 29.53], [-91.25, 29.0], [-91.47, 28.47], [-92.0, 28.25], [-92.25, 28.35], [-92.5, 28.25], [-92.75, 28.35], [-92.82, 28.32], [-92.97, 27.97], [-93.5, 27.75], [-93.75, 27.85], [-93.82, 27.82], [-93.97, 27.47], [-94.5, 27.25], [-94.75, 27.35], [-94.82, 27.32], [-94.97, 26.97], [-95.5, 26.75], [-95.75, 26.85], [-95.82, 26.82], [-95.85, 26.75], [-95.75, 26.5], [-95.97, 25.97], [-96.5, 25.75], [-96.75, 25.85], [-96.82, 25.82], [-96.85, 25.75], [-96.75, 25.5], [-96.97, 24.97], [-97.32, 24.82], [-97.35, 24.75], [-97.25, 24.5], [-97.35, 24.25], [-97.25, 24.0], [-97.35, 23.75], [-97.25, 23.5], [-97.35, 23.25], [-97.25, 23.0], [-97.47, 22.47], [-97.82, 22.32], [-97.85, 22.25], [-97.82, 22.18], [-97.47, 22.03], [-97.32, 21.68], [-96.97, 21.53], [-96.75, 21.0], [-96.85, 20.75], [-96.75, 20.5], [-96.97, 19.97], [-97.5, 19.75], [-97.75, 19.85], [-97.82, 19.82], [-97.97, 19.47], [-98.5, 19.25], [-98.75, 19.35], [-99.0, 19.25], [-99.53, 19.47], [-99.75, 20.0], [-99.53, 20.53], [-99.0, 20.75], [-98.75, 20.65], [-98.68, 20.68], [-98.65, 20.75], [-98.68, 20.82], [-99.03, 20.97], [-99.18, 21.32], [-99.53, 21.47], [-99.75, 22.0], [-99.65, 22.25], [-99.75, 22.5], [-99.65, 22.75], [-99.75, 23.0], [-99.65, 23.25], [-99.68, 23.32], [-100.03, 23.47], [-100.25, 24.0], [-100.15, 24.25], [-100.25, 24.5], [-100.15, 24.75], [-100.25, 25.0], [-100.12, 25.3], [-100.25, 25.35], [-100.5, 25.25], [-100.75, 25.35], [-101.0, 25.25], [-101.53, 25.47], [-101.75, 26.0], [-101.65, 26.25], [-101.75, 26.5], [-101.65, 26.75], [-101.68, 26.82], [-101.75, 26.85], [-102.0, 26.75], [-102.53, 26.97], [-102.75, 27.5], [-102.53, 28.03], [-102.12, 28.2], [-102.25, 28.5], [-102.03, 29.03]]]]}, "2018-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 29.03], [-101.5, 29.25], [-101.25, 29.15], [-101.0, 29.25], [-100.75, 29.15], [-100.5, 29.25], [-100.25, 29.15], [-100.18, 29.18], [-100.15, 29.25], [-100.25, 29.5], [-100.03, 30.03], [-99.5, 30.25], [-99.25, 30.15], [-99.18, 30.18], [-99.03, 30.53], [-98.5, 30.75], [-98.25, 30.65], [-98.0, 30.75], [-97.5, 30.54], [-97.0, 30.75], [-96.5, 30.54], [-96.0, 30.75], [-95.75, 30.65], [-95.68, 30.68], [-95.65, 30.75], [-95.75, 31.0], [-95.53, 31.53], [-95.0, 31.75], [-94.75, 31.65], [-94.68, 31.68], [-94.53, 32.03], [-94.0, 32.25], [-93.75, 32.15], [-93.5, 32.25], [-93.25, 32.15], [-93.0, 32.25], [-92.47, 32.03], [-92.25, 31.5], [-92.35, 31.25], [-92.32, 31.18], [-91.97, 31.03], [-91.75, 30.5], [-91.96, 30.0], [-91.82, 29.68], [-91.47, 29.53], [-91.25, 29.0], [-91.47, 28.47], [-92.0, 28.25], [-92.25, 28.35], [-92.5, 28.25], [-92.75, 28.35], [-93.0, 28.25], [-93.25, 28.35], [-93.32, 28.32], [-93.47, 27.97], [-93.82, 27.82], [-93.97, 27.47], [-94.5, 27.25], [-94.75, 27.35], [-94.82, 27.32], [-94.97, 26.97], [-95.5, 26.75], [-95.75, 26.85], [-95.82, 26.82], [-95.85, 26.75], [-95.75, 26.5], [-95.97, 25.97], [-96.5, 25.75], [-96.75, 25.85], [-96.82, 25.82], [-96.85, 25.75], [-96.75, 25.5], [-96.97, 24.97], [-97.32, 24.82], [-97.35, 24.75], [-97.25, 24.5], [-97.35, 24.25], [-97.25, 24.0], [-97.35, 23.75], [-97.25, 23.5], [-97.35, 23.25], [-97.25, 23.0], [-97.47, 22.47], [-97.82, 22.32], [-97.85, 22.25], [-97.82, 22.18], [-97.47, 22.03], [-97.32, 21.68], [-96.97, 21.53], [-96.75, 21.0], [-96.85, 20.75], [-96.75, 20.5], [-96.97, 19.97], [-97.5, 19.75], [-97.75, 19.85], [-97.82, 19.82], [-97.97, 19.47], [-98.5, 19.25], [-98.75, 19.35], [-99.0, 19.25], [-99.53, 19.47], [-99.75, 20.0], [-99.53, 20.53], [-99.0, 20.75], [-98.75, 20.65], [-98.68, 20.68], [-98.65, 20.75], [-98.68, 20.82], [-99.03, 20.97], [-99.18, 21.32], [-99.53, 21.47], [-99.75, 22.0], [-99.65, 22.25], [-99.75, 22.5], [-99.65, 22.75], [-99.75, 23.0], [-99.65, 23.25], [-99.68, 23.32], [-100.03, 23.47], [-100.25, 24.0], [-100.15, 24.25], [-100.25, 24.5], [-100.15, 24.75], [-100.25, 25.0], [-100.12, 25.3], [-100.25, 25.35], [-100.5, 25.25], [-100.75, 25.35], [-101.0, 25.25], [-101.53, 25.47], [-101.75, 26.0], [-101.65, 26.25], [-101.75, 26.5], [-101.65, 26.75], [-101.68, 26.82], [-101.75, 26.85], [-102.0, 26.75], [-102.53, 26.97], [-102.75, 27.5], [-102.53, 28.03], [-102.12, 28.2], [-102.25, 28.5], [-102.03, 29.03]]]]}, "2018-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.65, 22.75], [-99.75, 23.0], [-99.65, 23.25], [-99.75, 23.5], [-99.53, 24.03], [-99.0, 24.25], [-98.47, 24.03], [-98.32, 23.68], [-98.25, 23.65], [-98.0, 23.75], [-97.47, 23.53], [-97.25, 23.0], [-97.47, 22.47], [-97.82, 22.32], [-97.85, 22.25], [-97.82, 22.18], [-97.47, 22.03], [-97.32, 21.68], [-96.97, 21.53], [-96.75, 21.0], [-96.85, 20.75], [-96.75, 20.5], [-96.97, 19.97], [-97.5, 19.75], [-97.75, 19.85], [-98.0, 19.75], [-98.3, 19.88], [-98.47, 19.47], [-99.0, 19.25], [-99.53, 19.47], [-99.75, 20.0], [-99.53, 20.53], [-99.0, 20.75], [-98.7, 20.62], [-98.65, 20.75], [-98.68, 20.82], [-99.03, 20.97], [-99.18, 21.32], [-99.53, 21.47], [-99.75, 22.0], [-99.65, 22.25], [-99.75, 22.5], [-99.65, 22.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.71240939325736}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.56362730400366}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.66580716262058, 23.941869960562883, 24.41042049125656, 24.47211850505124, 26.570183029558905]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.592557434613184, 28.33554093865672, 28.735378363535233, 29.311078778245303, 28.704846100225666]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.3306113675813283, 4.605509441713655, 4.758350655387205, 4.656429340663495, 3.7229735664958676]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.040061515537445, 6.8201296940194425, 7.71240939325736, 6.904697807258572, 4.923115071218547]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3659975235730937, 1.4148652996334201, 1.4862340430635175, 1.4696098287264057, 1.463112055848341]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.530153358536889, 1.7137752375619535, 2.183225844466052, 2.056182104221194, 1.765597770296379]}}