{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:17:42.768309", "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-Jul-26_to_2018-Aug-02_53.5_19.0"}, "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": 2018070003088}, "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": "July 26 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 02 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 52673.21906969713}, "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": ["Oman", "Saudi Arabia", "Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 19.0}, "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": 53.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "53.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 55.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 19.5], [52.97, 20.03], [53.5, 20.25], [54.03, 20.03], 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19.0], [54.53, 18.47], [54.18, 18.32], [54.15, 18.25], [54.25, 18.0], [54.03, 17.47], [53.68, 17.32], [53.53, 16.97], [53.0, 16.75], [52.47, 16.97], [52.25, 17.5], [52.35, 17.75], [52.25, 18.0], [52.35, 18.25]]]]}, "2018-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.97, 19.03], [52.32, 19.18], [52.47, 19.53], [52.82, 19.68], [52.97, 20.03], [53.5, 20.25], [53.75, 20.15], [54.0, 20.25], [54.53, 20.03], [54.75, 19.5], [54.65, 19.25], [54.75, 19.0], [54.53, 18.47], [54.18, 18.32], [54.15, 18.25], [54.25, 18.0], [54.03, 17.47], [53.68, 17.32], [53.53, 16.97], [53.0, 16.75], [52.47, 16.97], [52.32, 17.32], [51.97, 17.47], [51.75, 18.0], [51.85, 18.25], [51.75, 18.5], [51.97, 19.03]]]]}, "2018-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.85, 18.25], [51.75, 18.5], [51.97, 19.03], [52.32, 19.18], [52.47, 19.53], [52.82, 19.68], [52.97, 20.03], [53.32, 20.18], [53.47, 20.53], [54.0, 20.75], [54.25, 20.65], [54.5, 20.75], [55.03, 20.53], 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recorded over entire duration", "value": 2.737003673320089}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.144709075690806}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.46534310244516, 36.63174256585012, 36.923791641088656, 36.90825306727845, 37.025943068237325, 36.76411551162175, 36.79707758187578, 37.811622671603004]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.80908275184737, 38.030099832220344, 38.35883882417892, 38.1562883572206, 39.18351452414805, 38.69955615997412, 38.82758063767278, 38.09724049624663]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.628708143717688, 1.9187582345956287, 2.22507706538849, 2.1686515666889505, 2.358075037693314, 2.0815067468598474, 2.1455759767745937, 1.918177585797764]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7865245751751786, 2.0740399243991305, 2.5988104952398885, 2.722556357524809, 2.737003673320089, 2.465746430645652, 2.567982165125045, 2.0184544072978383]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2002870955398635, 1.3206471706574479, 1.555676072020181, 1.4935952089592597, 1.5724185903395593, 1.3594635042485637, 1.3426397334673423, 1.12076802250927]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2835864922468654, 1.4065695222126653, 1.7875210208282186, 1.8613354371492978, 1.8142343899913769, 1.6657221302861294, 1.5561655411784552, 1.1604535740997703]}}