{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:06.593687", "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": "2021-Jan-23_to_2021-Jan-28_38.5_24.0"}, "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": 2021010002386}, "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": "January 23 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 28 2021"}, "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": "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": 83489.85800810717}, "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": ["Saudi Arabia"]}, "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": ["Red Sea"]}, "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": 24.0}, "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": 38.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, 23.47], [37.75, 24.0], [37.97, 24.53], [38.5, 24.75], [39.03, 24.53], [39.25, 24.0], [39.03, 23.47], [38.5, 23.25], [37.97, 23.47]]], [[[36.47, 25.47], [36.25, 26.0], [36.47, 26.53], [37.0, 26.75], [37.53, 26.53], [37.75, 26.0], [37.53, 25.47], [37.0, 25.25], [36.47, 25.47]]]]}, "2021-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 27.0], [34.97, 27.53], [35.5, 27.75], [36.03, 27.53], [36.18, 27.18], [36.25, 27.15], [36.5, 27.25], [37.0, 27.04], [37.5, 27.25], [38.0, 27.04], [38.5, 27.25], [39.03, 27.03], [39.25, 26.5], [39.03, 25.97], [38.5, 25.75], [38.07, 25.93], [38.25, 25.5], [38.13, 25.2], [38.25, 25.15], [38.5, 25.25], [39.03, 25.03], [39.25, 24.5], [39.15, 24.25], [39.25, 24.0], [39.03, 23.47], [38.5, 23.25], [38.25, 23.35], [38.0, 23.25], [37.47, 23.47], [37.32, 23.82], [36.97, 23.97], [36.75, 24.5], [36.96, 25.0], [36.82, 25.32], [36.75, 25.35], [36.5, 25.25], [35.97, 25.47], [35.82, 25.82], [35.47, 25.97], [35.32, 26.32], [34.97, 26.47], [34.75, 27.0]]]]}, "2021-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 27.0], [34.97, 27.53], [35.5, 27.75], [36.03, 27.53], [36.18, 27.18], [36.25, 27.15], [36.32, 27.18], [36.35, 27.25], [36.25, 27.5], [36.47, 28.03], [37.0, 28.25], [37.53, 28.03], [37.75, 27.5], [37.65, 27.25], [37.68, 27.18], [38.0, 27.04], [38.5, 27.25], [38.75, 27.15], [39.0, 27.25], [39.5, 27.04], [40.0, 27.25], [40.53, 27.03], [40.75, 26.5], [40.53, 25.97], [40.18, 25.82], [40.15, 25.75], [40.25, 25.5], [40.03, 24.97], [39.68, 24.82], [39.65, 24.75], [39.75, 24.5], [39.53, 23.97], [39.18, 23.82], [39.03, 23.47], [38.5, 23.25], [38.25, 23.35], [38.0, 23.25], [37.47, 23.47], [37.32, 23.82], [36.97, 23.97], [36.75, 24.5], [36.96, 25.0], [36.82, 25.32], [36.75, 25.35], [36.5, 25.25], [35.97, 25.47], [35.82, 25.82], [35.47, 25.97], [35.32, 26.32], [34.97, 26.47], [34.75, 27.0]]]]}, "2021-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 27.0], [34.97, 27.53], [35.5, 27.75], [36.03, 27.53], [36.18, 27.18], [36.25, 27.15], [36.32, 27.18], [36.35, 27.25], [36.25, 27.5], [36.47, 28.03], [37.0, 28.25], [37.53, 28.03], [37.75, 27.5], [37.65, 27.25], [37.68, 27.18], [38.0, 27.04], [38.5, 27.25], [38.75, 27.15], [39.0, 27.25], [39.25, 27.15], [39.5, 27.25], [39.75, 27.15], [40.0, 27.25], [40.53, 27.03], [40.75, 26.5], [40.53, 25.97], [40.18, 25.82], [40.15, 25.75], [40.25, 25.5], [40.03, 24.97], [39.68, 24.82], [39.65, 24.75], [39.75, 24.5], [39.53, 23.97], [39.18, 23.82], [39.03, 23.47], [38.5, 23.25], [38.25, 23.35], [38.0, 23.25], [37.47, 23.47], [37.32, 23.82], [36.97, 23.97], [36.75, 24.5], [36.96, 25.0], [36.82, 25.32], [36.75, 25.35], [36.5, 25.25], [35.97, 25.47], [35.82, 25.82], [35.47, 25.97], [35.32, 26.32], [34.97, 26.47], [34.75, 27.0]]]]}, "2021-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 27.0], [34.97, 27.53], [35.5, 27.75], [36.03, 27.53], [36.18, 27.18], [36.25, 27.15], [36.32, 27.18], [36.35, 27.25], [36.25, 27.5], [36.47, 28.03], [37.0, 28.25], [37.53, 28.03], [37.75, 27.5], [37.65, 27.25], [37.68, 27.18], [38.0, 27.04], [38.5, 27.25], [38.75, 27.15], [39.0, 27.25], [39.25, 27.15], [39.5, 27.25], [39.75, 27.15], [40.0, 27.25], [40.53, 27.03], [40.75, 26.5], [40.53, 25.97], [40.18, 25.82], [40.15, 25.75], [40.25, 25.5], [40.03, 24.97], [39.68, 24.82], [39.65, 24.75], [39.75, 24.5], [39.53, 23.97], [39.18, 23.82], [39.03, 23.47], [38.5, 23.25], [37.97, 23.47], [37.82, 23.82], [37.75, 23.85], [37.5, 23.75], [36.97, 23.97], [36.75, 24.5], [36.96, 25.0], [36.82, 25.32], [36.75, 25.35], [36.5, 25.25], [35.97, 25.47], [35.82, 25.82], [35.47, 25.97], [35.32, 26.32], [34.97, 26.47], [34.75, 27.0]]]]}, "2021-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, 23.47], [37.75, 24.0], [37.97, 24.53], [38.5, 24.75], [39.03, 24.53], [39.25, 24.0], [39.03, 23.47], [38.5, 23.25], [37.97, 23.47]]], [[[38.97, 25.97], [38.75, 26.5], [38.97, 27.03], [39.5, 27.25], [40.03, 27.03], [40.25, 26.5], [40.03, 25.97], [39.5, 25.75], [38.97, 25.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.168600860830907}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.2739269762176955}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.305575389927128, 22.12945316630919, 20.83688588907603, 21.172434064459992, 21.327260567516475, 20.9623497041448]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.715772338297086, 24.874530078084888, 24.669026238854087, 24.79776733746769, 24.88203423837848, 24.860347903585193]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.296817144128397, 3.4020002984220286, 4.065766625832723, 4.484656734606949, 4.736429656273499, 4.06965005791298]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.3088923559751606, 4.73282638773486, 5.358047660605564, 5.953380522878376, 7.168600860830907, 4.959024391509502]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.435785454241594, 1.5083947604620713, 1.476564025050633, 1.5870539348955122, 1.610366745262636, 1.3240142369018593]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4839504905652963, 1.6992661069049382, 1.7338084491240497, 1.7607813728297474, 1.9591815017010257, 1.3283171004566126]}}