{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:51.927209", "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-Dec-30_to_2019-Jan-03_51.0_25.5"}, "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": 2018120002876}, "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 30 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 03 2019"}, "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": 62042.42173158842}, "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": ["Qatar", "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": ["Persian Gulf"]}, "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": 25.5}, "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": 51.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "51.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 48.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 52.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.47, 26.03], [51.0, 26.25], [51.53, 26.03], [51.75, 25.5], [51.65, 25.25], [51.75, 25.0], [51.54, 24.5], [51.75, 24.0], [51.53, 23.47], [51.0, 23.25], [50.47, 23.47], [50.25, 24.0], [50.46, 24.5], [50.25, 25.0], [50.35, 25.25], [50.25, 25.5], [50.47, 26.03]]]]}, "2018-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.25, 23.5], [48.47, 24.03], [48.82, 24.18], [48.97, 24.53], [49.32, 24.68], [49.35, 24.75], [49.25, 25.0], [49.47, 25.53], [50.0, 25.75], [50.3, 25.63], [50.47, 26.03], [51.0, 26.25], [51.53, 26.03], [51.68, 25.68], [52.03, 25.53], [52.18, 25.18], [52.53, 25.03], [52.75, 24.5], [52.53, 23.97], [52.13, 23.8], [52.25, 23.5], [52.03, 22.97], [51.5, 22.75], [51.25, 22.85], [51.0, 22.75], [50.75, 22.85], [50.68, 22.82], [50.53, 22.47], [50.0, 22.25], [49.75, 22.35], [49.5, 22.25], [48.97, 22.47], [48.82, 22.82], [48.47, 22.97], [48.25, 23.5]]]]}, "2019-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.25, 23.5], [48.47, 24.03], [48.82, 24.18], [48.97, 24.53], [49.32, 24.68], [49.35, 24.75], [49.25, 25.0], [49.47, 25.53], [50.0, 25.75], [50.3, 25.63], [50.47, 26.03], [51.0, 26.25], [51.5, 26.04], [52.0, 26.25], [52.53, 26.03], [52.75, 25.5], [52.54, 25.0], [52.75, 24.5], [52.53, 23.97], [52.13, 23.8], [52.25, 23.5], [52.03, 22.97], [51.5, 22.75], [51.25, 22.85], [51.0, 22.75], [50.75, 22.85], [50.68, 22.82], [50.53, 22.47], [50.0, 22.25], [49.75, 22.35], [49.5, 22.25], [48.97, 22.47], [48.82, 22.82], [48.47, 22.97], [48.25, 23.5]]]]}, "2019-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.25, 23.5], [48.47, 24.03], [48.82, 24.18], [48.97, 24.53], [49.32, 24.68], [49.35, 24.75], [49.25, 25.0], [49.47, 25.53], [50.0, 25.75], [50.3, 25.63], [50.47, 26.03], [51.0, 26.25], [51.5, 26.04], [52.0, 26.25], [52.53, 26.03], [52.75, 25.5], [52.54, 25.0], [52.75, 24.5], [52.53, 23.97], [52.13, 23.8], [52.25, 23.5], [52.03, 22.97], [51.5, 22.75], [51.25, 22.85], [51.0, 22.75], [50.75, 22.85], [50.68, 22.82], [50.53, 22.47], [50.0, 22.25], [49.75, 22.35], [49.5, 22.25], [48.97, 22.47], [48.82, 22.82], [48.47, 22.97], [48.25, 23.5]]]]}, "2019-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.25, 23.5], [48.47, 24.03], [48.82, 24.18], [48.97, 24.53], [49.32, 24.68], [49.35, 24.75], [49.25, 25.0], [49.47, 25.53], [50.0, 25.75], [50.3, 25.63], [50.47, 26.03], [51.0, 26.25], [51.5, 26.04], [52.0, 26.25], [52.53, 26.03], [52.75, 25.5], [52.54, 25.0], [52.75, 24.5], [52.53, 23.97], [52.13, 23.8], [52.25, 23.5], [52.03, 22.97], [51.5, 22.75], [51.25, 22.85], [51.0, 22.75], [50.75, 22.85], [50.68, 22.82], [50.53, 22.47], [50.0, 22.25], [49.75, 22.35], [49.5, 22.25], [48.97, 22.47], [48.82, 22.82], [48.47, 22.97], [48.25, 23.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.388907850058104}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.145235866081785}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.06984148116959, 20.698447690997, 20.229022771469204, 20.99334662985808, 22.06919145062153]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.524231064382832, 21.863990137277426, 22.16466066664924, 22.2139554695824, 23.29506939656659]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.9093670095717052, 4.15267253974631, 3.3768468516771217, 4.077173354381833, 5.143116320485276]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.0322629769281093, 4.991567371032431, 4.036785187934754, 5.323932523337305, 6.388907850058104]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4488408046008152, 1.7139803989725129, 1.3133418113610043, 1.5692024710418615, 1.9389986483719943]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5874324115608351, 1.8437768047078855, 1.5773594580422783, 1.9959403251226162, 2.494292810182781]}}