{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:03.431784", "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": "2011-Jul-23_to_2011-Aug-03_36.0_-3.5"}, "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": 2011070002979}, "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 23 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 03 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 12}, "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": 227990.87296351523}, "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": ["Kenya", "Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-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": -3.5}, "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": 36.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.5, -1.75], [36.03, -1.97], [36.25, -2.5], [36.03, -3.03], [35.5, -3.25], [34.97, -3.03], [34.75, -2.5], [34.97, -1.97], [35.5, -1.75]]]]}, "2011-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.5, -1.75], [36.03, -1.97], [36.25, -2.5], [36.03, -3.03], [35.5, -3.25], [34.97, -3.03], [34.75, -2.5], [34.97, -1.97], [35.5, -1.75]]]]}, "2011-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.85, -4.75], [32.75, -4.5], [32.97, -3.97], [33.5, -3.75], [33.8, -3.88], [33.85, -3.75], [33.75, -3.5], [33.85, -3.25], [33.75, -3.0], [33.97, -2.47], [34.5, -2.25], [34.75, -2.35], [34.82, -2.32], [34.97, -1.97], [35.5, -1.75], [35.75, -1.85], [36.0, -1.75], [36.53, -1.97], [36.75, -2.5], [36.65, -2.75], [36.75, -3.0], [36.65, -3.25], [36.68, -3.32], [36.75, -3.35], [37.0, -3.25], [37.25, -3.35], [37.32, -3.32], [37.35, -3.25], [37.25, -3.0], [37.47, -2.47], [38.0, -2.25], [38.53, -2.47], [38.75, -3.0], [38.65, -3.25], [38.75, -3.5], [38.65, -3.75], [38.75, -4.0], [38.65, -4.25], [38.75, -4.5], [38.53, -5.03], [38.0, -5.25], [37.75, -5.15], [37.68, -5.18], [37.65, -5.25], [37.75, -5.5], [37.53, -6.03], [37.18, -6.18], [37.15, -6.25], [37.25, -6.5], [37.03, -7.03], [36.5, -7.25], [36.25, -7.15], [36.0, -7.25], [35.47, -7.03], [35.25, -6.5], [35.35, -6.25], [35.3, -6.12], [35.18, -6.18], [35.03, -6.53], [34.5, -6.75], [34.25, -6.65], [34.0, -6.75], [33.47, -6.53], [33.32, -6.18], [32.97, -6.03], [32.75, -5.5], [32.85, -5.25], [32.75, -5.0], [32.85, -4.75]]]]}, "2011-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, -4.75], [31.75, -4.5], [31.97, -3.97], [32.32, -3.82], [32.47, -3.47], [32.82, -3.32], [32.97, -2.97], [33.5, -2.75], [33.75, -2.85], [33.82, -2.82], [33.97, -2.47], [34.5, -2.25], [34.75, -2.35], [34.82, -2.32], [34.97, -1.97], [35.5, -1.75], [35.75, -1.85], [36.0, -1.75], [36.53, -1.97], [36.75, -2.5], [36.65, -2.75], [36.75, -3.0], [36.65, -3.25], [36.68, -3.32], [36.75, -3.35], [37.0, -3.25], [37.25, -3.35], [37.32, -3.32], [37.35, -3.25], [37.25, -3.0], [37.47, -2.47], [38.0, -2.25], [38.53, -2.47], [38.75, -3.0], [38.65, -3.25], [38.75, -3.5], [38.65, -3.75], [38.75, -4.0], [38.65, -4.25], [38.75, -4.5], [38.53, -5.03], [38.0, -5.25], [37.75, -5.15], [37.68, -5.18], [37.65, -5.25], [37.75, -5.5], [37.53, -6.03], [37.18, -6.18], [37.15, -6.25], [37.25, -6.5], [37.03, -7.03], [36.5, -7.25], [36.25, -7.15], [36.0, -7.25], [35.47, -7.03], [35.3, -6.62], [35.0, -6.75], [34.75, -6.65], [34.5, -6.75], [34.25, -6.65], [34.0, -6.75], [33.75, -6.65], [33.68, -6.68], [33.65, -6.75], [33.75, -7.0], [33.53, -7.53], [33.0, -7.75], [32.47, -7.53], [32.25, -7.0], [32.35, -6.75], [32.25, -6.5], [32.35, -6.25], [32.32, -6.18], [31.97, -6.03], [31.75, -5.5], [31.85, -5.25], [31.75, -5.0], [31.85, -4.75]]]]}, "2011-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, -4.75], [31.75, -4.5], [31.97, -3.97], [32.32, -3.82], [32.47, -3.47], [32.82, -3.32], [32.97, -2.97], [33.5, -2.75], [33.75, -2.85], [33.82, -2.82], [33.97, -2.47], [34.5, -2.25], [34.75, -2.35], [35.0, -2.25], [35.25, -2.35], [35.32, -2.32], [35.47, -1.97], [36.0, -1.75], [36.53, -1.97], [36.75, -2.5], [36.65, -2.75], [36.75, -3.0], [36.65, -3.25], [36.68, -3.32], [36.75, -3.35], [37.0, -3.25], [37.25, -3.35], [37.32, -3.32], [37.35, -3.25], [37.25, -3.0], [37.47, -2.47], [38.0, -2.25], [38.53, -2.47], [38.75, -3.0], [38.65, -3.25], [38.75, -3.5], [38.65, -3.75], [38.75, -4.0], [38.65, -4.25], [38.75, -4.5], [38.53, -5.03], [38.0, -5.25], [37.75, -5.15], [37.68, -5.18], [37.65, -5.25], [37.75, -5.5], [37.53, -6.03], [37.18, -6.18], [37.15, -6.25], [37.25, -6.5], [37.03, -7.03], [36.5, -7.25], [36.25, -7.15], [36.0, -7.25], [35.47, -7.03], [35.3, -6.62], [35.0, -6.75], [34.75, -6.65], [34.5, -6.75], [34.25, -6.65], [34.0, -6.75], [33.75, -6.65], [33.68, -6.68], [33.65, -6.75], [33.75, -7.0], [33.53, -7.53], [33.0, -7.75], [32.47, -7.53], [32.25, -7.0], [32.35, -6.75], [32.25, -6.5], [32.35, -6.25], [32.32, -6.18], [31.97, -6.03], [31.75, -5.5], [31.85, -5.25], [31.75, -5.0], [31.85, -4.75]]]]}, "2011-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, -4.75], [31.75, -4.5], [31.96, -4.0], [31.75, -3.5], [31.97, -2.97], [32.5, -2.75], [32.75, -2.85], [33.0, -2.75], [33.25, -2.85], [33.5, -2.75], [33.75, -2.85], [33.82, -2.82], [33.97, -2.47], [34.32, -2.32], [34.35, -2.25], [34.25, -2.0], [34.47, -1.47], [35.0, -1.25], [35.53, -1.47], [35.68, -1.82], [35.75, -1.85], [36.0, -1.75], [36.53, -1.97], [36.75, -2.5], [36.65, -2.75], [36.68, -2.82], [37.03, -2.97], [37.18, -3.32], [37.25, -3.35], [37.5, -3.25], [38.03, -3.47], [38.25, -4.0], [38.03, -4.53], [37.5, -4.75], [37.25, -4.65], [37.0, -4.75], [36.75, -4.65], [36.68, -4.68], [36.65, -4.75], [36.68, -4.82], [37.03, -4.97], [37.25, -5.5], [37.03, -6.03], [36.5, -6.25], [36.0, -6.04], [35.68, -6.18], [35.53, -6.53], [35.0, -6.75], [34.75, -6.65], [34.5, -6.75], [34.25, -6.65], [34.0, -6.75], [33.75, -6.65], [33.68, -6.68], [33.65, -6.75], [33.75, -7.0], [33.53, -7.53], [33.0, -7.75], [32.47, -7.53], [32.25, -7.0], [32.35, -6.75], [32.25, -6.5], [32.35, -6.25], [32.32, -6.18], [31.97, -6.03], [31.75, -5.5], [31.85, -5.25], [31.75, -5.0], [31.85, -4.75]]]]}, "2011-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.97, -2.97], [32.5, -2.75], [32.75, -2.85], [33.0, -2.75], [33.25, -2.85], [33.5, -2.75], [33.75, -2.85], [33.82, -2.82], [33.97, -2.47], [34.32, -2.32], [34.35, -2.25], [34.25, -2.0], [34.47, -1.47], [35.0, -1.25], [35.53, -1.47], [35.68, -1.82], [35.75, -1.85], [36.0, -1.75], [36.53, -1.97], [36.75, -2.5], [36.65, -2.75], [36.68, -2.82], [37.03, -2.97], [37.18, -3.32], [37.25, -3.35], [37.5, -3.25], [38.03, -3.47], [38.25, -4.0], [38.03, -4.53], [37.5, -4.75], [37.25, -4.65], [37.0, -4.75], [36.75, -4.65], [36.68, -4.68], [36.65, -4.75], [36.75, -5.0], [36.53, -5.53], [36.0, -5.75], [35.75, -5.65], [35.5, -5.75], [34.97, -5.53], [34.75, -5.0], [34.85, -4.75], [34.82, -4.68], [34.75, -4.65], [34.5, -4.75], [34.25, -4.65], [34.18, -4.68], [34.03, -5.03], [33.5, -5.25], [33.25, -5.15], [33.0, -5.25], [32.75, -5.15], [32.5, -5.25], [31.97, -5.03], [31.75, -4.5], [31.96, -4.0], [31.75, -3.5], [31.97, -2.97]]]]}, "2011-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.97, -4.03], [31.75, -3.5], [31.97, -2.97], [32.5, -2.75], [32.75, -2.85], [33.0, -2.75], [33.25, -2.85], [33.5, -2.75], [33.75, -2.85], [33.82, -2.82], [33.97, -2.47], [34.32, -2.32], [34.35, -2.25], [34.25, -2.0], [34.47, -1.47], [35.0, -1.25], [35.53, -1.47], [35.68, -1.82], [36.03, -1.97], [36.18, -2.32], [36.53, -2.47], [36.68, -2.82], [37.03, -2.97], [37.18, -3.32], [37.25, -3.35], [37.5, -3.25], [38.03, -3.47], [38.25, -4.0], [38.03, -4.53], [37.5, -4.75], [37.25, -4.65], [37.0, -4.75], [36.75, -4.65], [36.5, -4.75], [36.25, -4.65], [36.0, -4.75], [35.5, -4.54], [35.0, -4.75], [34.5, -4.54], [34.0, -4.75], [33.47, -4.53], [33.32, -4.18], [33.25, -4.15], [33.0, -4.25], [32.75, -4.15], [32.5, -4.25], [31.97, -4.03]]]]}, "2011-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.47, -4.53], [33.25, -4.0], [33.47, -3.47], [34.0, -3.25], [34.53, -3.47], [34.75, -4.0], [34.53, -4.53], [34.0, -4.75], [33.47, -4.53]]], [[[34.47, -1.47], [35.0, -1.25], [35.53, -1.47], [35.68, -1.82], [36.03, -1.97], [36.25, -2.5], [36.13, -2.8], [36.53, -2.97], [36.75, -3.5], [36.53, -4.03], [36.0, -4.25], [35.47, -4.03], [35.25, -3.5], [35.38, -3.2], [34.97, -3.03], [34.82, -2.68], [34.47, -2.53], [34.25, -2.0], [34.47, -1.47]]]]}, "2011-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, -4.03], [35.25, -3.5], [35.47, -2.97], [36.0, -2.75], [36.53, -2.97], [36.75, -3.5], [36.53, -4.03], [36.0, -4.25], [35.47, -4.03]]], [[[33.97, -2.03], [33.75, -1.5], [33.97, -0.97], [34.5, -0.75], [35.03, -0.97], [35.25, -1.5], [35.03, -2.03], [34.5, -2.25], [33.97, -2.03]]]]}, "2011-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.5, -0.75], [35.03, -0.97], [35.25, -1.5], [35.03, -2.03], [34.5, -2.25], [33.97, -2.03], [33.75, -1.5], [33.97, -0.97], [34.5, -0.75]]]]}, "2011-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.5, -0.75], [35.03, -0.97], [35.25, -1.5], [35.03, -2.03], [34.5, -2.25], [33.97, -2.03], [33.75, -1.5], [33.97, -0.97], [34.5, -0.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.3307424528867386}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8219126702913024}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.83644477181764, 21.114363313662523, 21.49917101919459, 22.757910551571626, 22.356153127220978, 22.815277017657536, 22.583197313732, 22.41406281021449, 22.797878206842597, 23.096559499740465, 23.780254005372115, 23.584165561188968]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.83644477181764, 21.114363313662523, 27.885182825730112, 27.670514205569305, 27.544525011739097, 27.5780645290493, 27.500460212650125, 25.43978284348856, 25.47096595443037, 23.852429358032055, 23.780254005372115, 23.584165561188968]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.513405165822917, 1.7546548572840948, 1.6894683361157554, 2.1867843721545315, 1.715769120810534, 1.8424860633133302, 1.6344393177092158, 1.595444871559144, 1.524444285650219, 1.618785609950919, 1.4275019109751952, 1.1811329972583167]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.513405165822917, 1.7546548572840948, 3.1141798978070483, 3.3307424528867386, 2.3986796764093583, 2.795052936955983, 2.6073994453493015, 2.02991754290224, 1.713285728677647, 1.755789835633209, 1.4275019109751952, 1.1811329972583167]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.05501225131762, 1.3914701536266318, 1.83615487546457, 2.386345762906099, 1.8759314554995576, 2.0048885319626653, 1.6902481565868994, 1.617178454386502, 1.4635852082474794, 1.5488729730257662, 1.5341714096843455, 1.2741803938354965]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.05501225131762, 1.3914701536266318, 2.5151064411827386, 3.5134625985494976, 2.667922592014683, 3.1403566435597847, 2.2925652080335785, 1.846490632384135, 1.6380333172322403, 1.6086425576651286, 1.5341714096843455, 1.2741803938354965]}}