{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:39.362871", "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": "2013-Feb-04_to_2013-Feb-09_10.5_2.0"}, "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": 2013020001324}, "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": "February 04 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 09 2013"}, "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": 52484.31918626992}, "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": ["Cameroon", "Equatorial Guinea", "Gabon"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "Western-Africa"]}, "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": 2.0}, "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": 10.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "10.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 9.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 11.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.25, 2.5], [9.47, 3.03], [10.0, 3.25], [10.53, 3.03], [10.68, 2.68], [10.75, 2.65], [11.0, 2.75], [11.53, 2.53], [11.75, 2.0], [11.53, 1.47], [11.0, 1.25], [10.75, 1.35], [10.5, 1.25], [9.97, 1.47], [9.82, 1.82], [9.47, 1.97], [9.25, 2.5]]]]}, "2013-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.35, 1.25], [9.25, 1.5], [9.35, 1.75], [9.25, 2.0], [9.35, 2.25], [9.25, 2.5], [9.47, 3.03], [10.0, 3.25], [10.25, 3.15], [10.5, 3.25], [10.75, 3.15], [11.0, 3.25], [11.53, 3.03], [11.75, 2.5], [11.65, 2.25], [11.75, 2.0], [11.53, 1.47], [11.18, 1.32], [11.15, 1.25], [11.25, 1.0], [11.03, 0.47], [10.68, 0.32], [10.53, -0.03], [10.0, -0.25], [9.47, -0.03], [9.25, 0.5], [9.35, 0.75], [9.25, 1.0], [9.35, 1.25]]]]}, "2013-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.35, 1.25], [9.25, 1.5], [9.35, 1.75], [9.25, 2.0], [9.35, 2.25], [9.25, 2.5], [9.47, 3.03], [9.82, 3.18], [9.97, 3.53], [10.5, 3.75], [11.03, 3.53], [11.18, 3.18], [11.53, 3.03], [11.75, 2.5], [11.65, 2.25], [11.75, 2.0], [11.53, 1.47], [11.18, 1.32], [11.15, 1.25], [11.25, 1.0], [11.03, 0.47], [10.68, 0.32], [10.53, -0.03], [10.0, -0.25], [9.47, -0.03], [9.25, 0.5], [9.35, 0.75], [9.25, 1.0], [9.35, 1.25]]]]}, "2013-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.35, 1.25], [9.25, 1.5], [9.35, 1.75], [9.25, 2.0], [9.35, 2.25], [9.25, 2.5], [9.47, 3.03], [9.82, 3.18], [9.85, 3.25], [9.82, 3.32], [9.47, 3.47], [9.25, 4.0], [9.35, 4.25], [9.25, 4.5], [9.47, 5.03], [9.82, 5.18], [9.97, 5.53], [10.5, 5.75], [11.03, 5.53], [11.25, 5.0], [11.04, 4.5], [11.25, 4.0], [11.15, 3.75], [11.25, 3.5], [11.15, 3.25], [11.18, 3.18], [11.53, 3.03], [11.75, 2.5], [11.65, 2.25], [11.75, 2.0], [11.53, 1.47], [11.18, 1.32], [11.15, 1.25], [11.25, 1.0], [11.03, 0.47], [10.68, 0.32], [10.53, -0.03], [10.0, -0.25], [9.47, -0.03], [9.25, 0.5], [9.35, 0.75], [9.25, 1.0], [9.35, 1.25]]]]}, "2013-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.47, 5.03], [9.82, 5.18], [9.97, 5.53], [10.5, 5.75], [11.03, 5.53], [11.25, 5.0], [11.04, 4.5], [11.25, 4.0], [11.15, 3.75], [11.25, 3.5], [11.15, 3.25], [11.25, 3.0], [11.04, 2.5], [11.25, 2.0], [11.03, 1.47], [10.5, 1.25], [9.97, 1.47], [9.75, 2.0], [9.96, 2.5], [9.75, 3.0], [9.85, 3.25], [9.82, 3.32], [9.47, 3.47], [9.25, 4.0], [9.35, 4.25], [9.25, 4.5], [9.47, 5.03]]]]}, "2013-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.47, 5.03], [9.82, 5.18], [9.97, 5.53], [10.5, 5.75], [11.03, 5.53], [11.25, 5.0], [11.04, 4.5], [11.25, 4.0], [11.15, 3.75], [11.25, 3.5], [11.03, 2.97], [10.5, 2.75], [9.97, 2.97], [9.82, 3.32], [9.47, 3.47], [9.25, 4.0], [9.35, 4.25], [9.25, 4.5], [9.47, 5.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.063932712436838}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4569584072832413}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.985803746807903, 26.00370484245275, 26.26140560775599, 26.643340740784538, 26.999239622048435, 27.59314259550206]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.973051003664352, 27.292064650033865, 27.68046997816805, 29.063063970498717, 29.285815971206546, 29.15643709504144]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1525373823441025, 1.38970707241317, 1.6440107037186824, 1.532568454851103, 1.2614359731208051, 1.3552956936125042]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3971212873328795, 1.6889846148783931, 2.063932712436838, 1.9423448795885179, 1.6176580754005272, 1.5162702044648313]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3344349604054295, 1.5835690491218424, 1.8829890911074865, 1.7549729012020137, 1.405675139794433, 1.5971573167378743]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4411518107177728, 2.0418514295231716, 2.4023227219411583, 2.2236656428407477, 1.682933553611666, 1.827709345823666]}}