{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:39.809248", "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-Jul-07_to_2021-Jul-09_23.0_22.5"}, "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": 2021070001740}, "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 07 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 09 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 59967.32092199764}, "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": ["Libya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 22.5}, "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": 23.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "23.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 20.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 24.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.75, 23.5], [20.97, 24.03], [21.5, 24.25], [21.75, 24.15], [22.0, 24.25], [22.53, 24.03], [22.7, 23.63], [23.0, 23.75], [23.25, 23.65], [23.32, 23.68], [23.47, 24.03], [24.0, 24.25], [24.53, 24.03], [24.68, 23.68], [25.03, 23.53], [25.25, 23.0], [25.03, 22.47], [24.68, 22.32], [24.53, 21.97], [24.18, 21.82], [24.03, 21.47], [23.5, 21.25], [23.25, 21.35], [23.18, 21.32], [23.03, 20.97], [22.5, 20.75], [22.25, 20.85], [22.18, 20.82], [22.03, 20.47], [21.5, 20.25], [20.97, 20.47], [20.75, 21.0], [20.97, 21.53], [21.32, 21.68], [21.35, 21.75], [21.32, 21.82], [21.25, 21.85], [21.0, 21.75], [20.47, 21.97], [20.25, 22.5], [20.47, 23.03], [20.82, 23.18], [20.85, 23.25], [20.75, 23.5]]]]}, "2021-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.75, 23.5], [20.97, 24.03], [21.5, 24.25], [21.75, 24.15], [22.0, 24.25], [22.53, 24.03], [22.7, 23.63], [23.0, 23.75], [23.25, 23.65], [23.32, 23.68], [23.47, 24.03], [24.0, 24.25], [24.53, 24.03], [24.68, 23.68], [25.03, 23.53], [25.25, 23.0], [25.03, 22.47], [24.68, 22.32], [24.53, 21.97], [24.18, 21.82], [24.03, 21.47], [23.5, 21.25], [23.25, 21.35], [23.18, 21.32], [23.03, 20.97], [22.5, 20.75], [22.25, 20.85], [22.18, 20.82], [22.03, 20.47], [21.5, 20.25], [20.97, 20.47], [20.75, 21.0], [20.97, 21.53], [21.32, 21.68], [21.35, 21.75], [21.32, 21.82], [21.25, 21.85], [21.0, 21.75], [20.47, 21.97], [20.25, 22.5], [20.47, 23.03], [20.82, 23.18], [20.85, 23.25], [20.75, 23.5]]]]}, "2021-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.75, 23.5], [20.97, 24.03], [21.5, 24.25], [21.75, 24.15], [22.0, 24.25], [22.53, 24.03], [22.7, 23.63], [23.0, 23.75], [23.25, 23.65], [23.32, 23.68], [23.47, 24.03], [24.0, 24.25], [24.53, 24.03], [24.68, 23.68], [25.03, 23.53], [25.25, 23.0], [25.03, 22.47], [24.68, 22.32], [24.53, 21.97], [24.18, 21.82], [24.03, 21.47], [23.5, 21.25], [23.25, 21.35], [23.18, 21.32], [23.03, 20.97], [22.5, 20.75], [22.25, 20.85], [22.18, 20.82], [22.03, 20.47], [21.5, 20.25], [20.97, 20.47], [20.75, 21.0], [20.97, 21.53], [21.32, 21.68], [21.35, 21.75], [21.32, 21.82], [21.25, 21.85], [21.0, 21.75], [20.47, 21.97], [20.25, 22.5], [20.47, 23.03], [20.82, 23.18], [20.85, 23.25], [20.75, 23.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.3266064014428025}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.1005386810047693}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.04034319152993, 34.47275521351918, 34.39967537073653]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.781284304637154, 35.03591169430325, 35.049370925703386]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.2011208814596634, 3.602806171658025, 3.49768898989662]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5746978707250037, 4.3266064014428025, 4.023539961496795]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4409389382966873, 2.408833048520283, 2.373639818485475]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6844644618070668, 2.764348770493179, 2.754695571015081]}}