{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:17.287109", "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": "2012-Aug-18_to_2012-Aug-28_11.5_-4.5"}, "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": 2012080002440}, "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": "August 18 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 28 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 11}, "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": 77108.0258308554}, "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": ["Congo"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-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": ["South Atlantic Ocean"]}, "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": -4.5}, "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": 11.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "11.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 7.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 12.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.5, -3.75], [12.03, -3.97], [12.25, -4.5], [12.03, -5.03], [11.5, -5.25], [10.97, -5.03], [10.75, -4.5], [10.97, -3.97], [11.5, -3.75]]]]}, "2012-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.5, -3.75], [12.03, -3.97], [12.25, -4.5], [12.03, -5.03], [11.5, -5.25], [10.97, -5.03], [10.75, -4.5], [10.97, -3.97], [11.5, -3.75]]]]}, "2012-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.5, -3.75], [12.03, -3.97], [12.25, -4.5], [12.15, -4.75], [12.18, -4.82], [12.53, -4.97], [12.75, -5.5], [12.65, -5.75], [12.75, -6.0], [12.53, -6.53], [12.0, -6.75], [11.47, -6.53], [11.25, -6.0], [11.35, -5.75], [11.32, -5.68], [10.97, -5.53], [10.75, -5.0], [10.85, -4.75], [10.75, -4.5], [10.97, -3.97], [11.5, -3.75]]], [[[7.25, -1.0], [7.47, -0.47], [8.0, -0.25], [8.25, -0.35], [8.5, -0.25], [9.03, -0.47], [9.25, -1.0], [9.03, -1.53], [8.5, -1.75], [8.25, -1.65], [8.0, -1.75], [7.47, -1.53], [7.25, -1.0]]]]}, "2012-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.25, -1.0], [7.47, -0.47], [8.0, -0.25], [8.25, -0.35], [8.5, -0.25], [9.03, -0.47], [9.18, -0.82], [9.53, -0.97], [9.75, -1.5], [9.65, -1.75], [9.68, -1.82], [10.03, -1.97], [10.18, -2.32], [10.53, -2.47], [10.68, -2.82], [11.03, -2.97], [11.18, -3.32], [11.53, -3.47], [11.68, -3.82], [12.03, -3.97], [12.18, -4.32], [12.53, -4.47], [12.75, -5.0], [12.65, -5.25], [12.75, -5.5], [12.65, -5.75], [12.75, -6.0], [12.53, -6.53], [12.0, -6.75], [11.47, -6.53], [11.32, -6.18], [11.25, -6.15], [11.0, -6.25], [10.47, -6.03], [10.25, -5.5], [10.35, -5.25], [10.25, -5.0], [10.35, -4.75], [10.32, -4.68], [9.97, -4.53], [9.82, -4.18], [9.47, -4.03], [9.32, -3.68], [9.25, -3.65], [9.0, -3.75], [8.47, -3.53], [8.32, -3.18], [7.97, -3.03], [7.75, -2.5], [7.85, -2.25], [7.75, -2.0], [7.85, -1.75], [7.82, -1.68], [7.47, -1.53], [7.25, -1.0]]]]}, "2012-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.25, -1.0], [7.47, -0.47], [8.0, -0.25], [8.25, -0.35], [8.5, -0.25], [9.03, -0.47], [9.18, -0.82], [9.53, -0.97], [9.75, -1.5], [9.65, -1.75], [9.68, -1.82], [10.03, -1.97], [10.18, -2.32], [10.53, -2.47], [10.68, -2.82], [11.03, -2.97], [11.18, -3.32], [11.53, -3.47], [11.68, -3.82], [12.03, -3.97], [12.18, -4.32], [12.53, -4.47], [12.75, -5.0], [12.65, -5.25], [12.75, -5.5], [12.65, -5.75], [12.75, -6.0], [12.53, -6.53], [12.0, -6.75], [11.47, -6.53], [11.32, -6.18], [11.25, -6.15], [11.0, -6.25], [10.47, -6.03], [10.25, -5.5], [10.35, -5.25], [10.25, -5.0], [10.35, -4.75], [10.32, -4.68], [9.97, -4.53], [9.82, -4.18], [9.47, -4.03], [9.32, -3.68], [9.25, -3.65], [9.0, -3.75], [8.47, -3.53], [8.32, -3.18], [7.97, -3.03], [7.75, -2.5], [7.85, -2.25], [7.75, -2.0], [7.85, -1.75], [7.82, -1.68], [7.47, -1.53], [7.25, -1.0]]]]}, "2012-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.85, -1.75], [7.75, -1.5], [7.97, -0.97], [8.5, -0.75], [8.75, -0.85], [9.0, -0.75], [9.53, -0.97], [9.75, -1.5], [9.65, -1.75], [9.68, -1.82], [10.03, -1.97], [10.18, -2.32], [10.53, -2.47], [10.68, -2.82], [11.03, -2.97], [11.18, -3.32], [11.53, -3.47], [11.68, -3.82], [12.03, -3.97], [12.18, -4.32], [12.53, -4.47], [12.75, -5.0], [12.65, -5.25], [12.75, -5.5], [12.65, -5.75], [12.75, -6.0], [12.53, -6.53], [12.0, -6.75], [11.47, -6.53], [11.32, -6.18], [11.25, -6.15], [11.0, -6.25], [10.47, -6.03], [10.25, -5.5], [10.35, -5.25], [10.25, -5.0], [10.35, -4.75], [10.32, -4.68], [9.97, -4.53], [9.82, -4.18], [9.47, -4.03], [9.32, -3.68], [9.25, -3.65], [9.0, -3.75], [8.47, -3.53], [8.32, -3.18], [7.97, -3.03], [7.75, -2.5], [7.85, -2.25], [7.75, -2.0], [7.85, -1.75]]]]}, "2012-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.0, -4.25], [11.5, -4.46], [12.0, -4.25], [12.53, -4.47], [12.75, -5.0], [12.53, -5.53], [12.0, -5.75], [11.7, -5.62], [11.53, -6.03], [11.0, -6.25], [10.47, -6.03], [10.25, -5.5], [10.35, -5.25], [10.25, -5.0], [10.47, -4.47], [11.0, -4.25]]], [[[8.97, -3.03], [8.75, -2.5], [8.97, -1.97], [9.5, -1.75], [10.03, -1.97], [10.25, -2.5], [10.03, -3.03], [9.5, -3.25], [8.97, -3.03]]]]}, "2012-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, -3.97], [11.5, -3.75], [12.03, -3.97], [12.25, -4.5], [12.15, -4.75], [12.25, -5.0], [12.03, -5.53], [11.5, -5.75], [10.97, -5.53], [10.75, -5.0], [10.85, -4.75], [10.75, -4.5], [10.97, -3.97]]]]}, "2012-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, -3.97], [11.5, -3.75], [12.03, -3.97], [12.18, -4.32], [12.53, -4.47], [12.75, -5.0], [12.65, -5.25], [12.75, -5.5], [12.53, -6.03], [12.0, -6.25], [11.47, -6.03], [11.32, -5.68], [10.97, -5.53], [10.75, -5.0], [10.85, -4.75], [10.75, -4.5], [10.97, -3.97]]]]}, "2012-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, -3.97], [11.5, -3.75], [12.03, -3.97], [12.18, -4.32], [12.53, -4.47], [12.75, -5.0], [12.65, -5.25], [12.75, -5.5], [12.53, -6.03], [12.0, -6.25], [11.47, -6.03], [11.32, -5.68], [10.97, -5.53], [10.75, -5.0], [10.85, -4.75], [10.75, -4.5], [10.97, -3.97]]]]}, "2012-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.47, -4.47], [12.0, -4.25], [12.53, -4.47], [12.75, -5.0], [12.65, -5.25], [12.75, -5.5], [12.53, -6.03], [12.0, -6.25], [11.47, -6.03], [11.25, -5.5], [11.35, -5.25], [11.25, -5.0], [11.47, -4.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6055673708029303}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0995531698333971}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.58572751621608, 22.65029464503283, 23.27709909560133, 23.85031560992087, 23.911469189756588, 23.727048176514472, 23.427102272346133, 23.398155510460583, 23.37803042024484, 23.575506564548732, 23.25066883895181]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.58572751621608, 22.65029464503283, 24.58263698599984, 24.923324523580163, 24.767412425701195, 24.405703032227166, 23.801992035785418, 23.40049127222659, 23.493170962298052, 23.684536586981892, 23.34977187387966]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.846382775166262, 0.8243748259355925, 0.7949617529769645, 1.1608021242238737, 1.1777057201538172, 1.0366295908761582, 0.9112788237011955, 1.1381691722959886, 1.1610782661360162, 1.3225966855770253, 1.0273996045165177]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.846382775166262, 0.8243748259355925, 0.89168912414641, 1.520972753512126, 1.6055673708029303, 1.3933310358415838, 1.0883486633076132, 1.1633897494421603, 1.2201034918571736, 1.3504808131363575, 1.0782314049369006]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3141914595238382, 1.2344054566553113, 1.2759486955653412, 1.8151637489782797, 1.7788285779783206, 1.5126045312145104, 1.3305137471288613, 1.5198994178395748, 1.6216070248884686, 1.9018627361876017, 1.5462835857640413]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3141914595238382, 1.2344054566553113, 1.3762855765092255, 2.326163778235323, 2.170704274202874, 1.820916931147585, 1.4866915161763106, 1.5353989730970607, 1.6433824945162232, 2.008807762688191, 1.6109505537245237]}}