{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:02.326724", "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": "2022-May-04_to_2022-May-13_94.5_33.0"}, "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": 2022050001554}, "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": "May 04 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 13 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 370965.6026990134}, "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": ["China"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "E.C.Asia", "Tibetan-Plateau"]}, "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": []}, "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": 33.0}, "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": 94.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "94.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 93.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 105.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.75, 34.0], [93.97, 34.53], [94.5, 34.75], [94.75, 34.65], [94.82, 34.68], [94.85, 34.75], [94.75, 35.0], [94.97, 35.53], [95.5, 35.75], [96.0, 35.54], [96.5, 35.75], [97.03, 35.53], [97.18, 35.18], [97.53, 35.03], [97.75, 34.5], [97.65, 34.25], [97.75, 34.0], [97.65, 33.75], [97.75, 33.5], [97.53, 32.97], [97.0, 32.75], [96.75, 32.85], [96.5, 32.75], [96.2, 32.88], [96.03, 32.47], [95.5, 32.25], [94.97, 32.47], [94.75, 33.0], [94.88, 33.3], [94.75, 33.35], [94.5, 33.25], [93.97, 33.47], [93.75, 34.0]]], [[[99.53, 36.53], [99.75, 36.0], [99.54, 35.5], [99.75, 35.0], [99.53, 34.47], [99.0, 34.25], [98.47, 34.47], [98.25, 35.0], [98.46, 35.5], [98.25, 36.0], [98.47, 36.53], [99.0, 36.75], [99.53, 36.53]]], [[[102.47, 38.03], [103.0, 38.25], [103.53, 38.03], [103.68, 37.68], [104.03, 37.53], [104.18, 37.18], [104.53, 37.03], [104.68, 36.68], [105.03, 36.53], [105.25, 36.0], [105.03, 35.47], [104.68, 35.32], [104.65, 35.25], [104.68, 35.18], [105.03, 35.03], [105.25, 34.5], [105.15, 34.25], [105.25, 34.0], [105.03, 33.47], [104.5, 33.25], [104.25, 33.35], [104.0, 33.25], [103.47, 33.47], [103.25, 34.0], [103.35, 34.25], [103.32, 34.32], [103.25, 34.35], [103.0, 34.25], [102.47, 34.47], [102.25, 35.0], [102.38, 35.3], [101.97, 35.47], [101.75, 36.0], [101.96, 36.5], [101.75, 37.0], [101.97, 37.53], [102.32, 37.68], [102.47, 38.03]], [[103.38, 35.8], [103.2, 35.88], [103.13, 35.7], [103.25, 35.65], [103.32, 35.68], [103.38, 35.8]]]]}, "2022-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.35, 33.75], [93.25, 34.0], [93.47, 34.53], [93.82, 34.68], [93.85, 34.75], [93.75, 35.0], [93.97, 35.53], [94.32, 35.68], [94.47, 36.03], [95.0, 36.25], [95.25, 36.15], [95.5, 36.25], [95.75, 36.15], [96.0, 36.25], [96.25, 36.15], [96.5, 36.25], [96.75, 36.15], [97.0, 36.25], [97.25, 36.15], [97.5, 36.25], [97.75, 36.15], [98.0, 36.25], [98.25, 36.15], [98.32, 36.18], [98.35, 36.25], [98.25, 36.5], [98.47, 37.03], [98.82, 37.18], [98.97, 37.53], [99.5, 37.75], [99.75, 37.65], [100.0, 37.75], [100.53, 37.53], [100.68, 37.18], [100.75, 37.15], [101.0, 37.25], [101.3, 37.13], [101.47, 37.53], [102.0, 37.75], [102.25, 37.65], [102.32, 37.68], [102.47, 38.03], [103.0, 38.25], [103.53, 38.03], [103.68, 37.68], [104.03, 37.53], [104.18, 37.18], [104.25, 37.15], [104.5, 37.25], [104.75, 37.15], [105.0, 37.25], [105.53, 37.03], [105.75, 36.5], [105.65, 36.25], [105.75, 36.0], [105.65, 35.75], [105.75, 35.5], [105.54, 35.0], [105.75, 34.5], [105.53, 33.97], [105.18, 33.82], [105.15, 33.75], [105.25, 33.5], [105.03, 32.97], [104.5, 32.75], [104.25, 32.85], [104.0, 32.75], [103.47, 32.97], [103.32, 33.32], [103.25, 33.35], [103.0, 33.25], [102.75, 33.35], [102.5, 33.25], [102.25, 33.35], [102.0, 33.25], [101.47, 33.47], [101.25, 34.0], [101.35, 34.25], [101.32, 34.32], [101.25, 34.35], [101.18, 34.32], [101.04, 34.0], [101.25, 33.5], [101.03, 32.97], [100.5, 32.75], [100.2, 32.88], [100.15, 32.75], [100.25, 32.5], [100.03, 31.97], [99.5, 31.75], [99.25, 31.85], [99.0, 31.75], [98.75, 31.85], [98.5, 31.75], [98.25, 31.85], [98.0, 31.75], [97.75, 31.85], [97.5, 31.75], [97.25, 31.85], [97.0, 31.75], [96.75, 31.85], [96.5, 31.75], [96.25, 31.85], [96.0, 31.75], [95.5, 31.96], [95.0, 31.75], [94.47, 31.97], [94.32, 32.32], [94.25, 32.35], [94.0, 32.25], [93.47, 32.47], [93.25, 33.0], [93.35, 33.25], [93.25, 33.5], [93.35, 33.75]]]]}, "2022-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.35, 33.75], [93.25, 34.0], [93.47, 34.53], [93.82, 34.68], [93.85, 34.75], [93.75, 35.0], [93.97, 35.53], [94.32, 35.68], [94.47, 36.03], [95.0, 36.25], [95.25, 36.15], [95.5, 36.25], [95.75, 36.15], [96.0, 36.25], [96.25, 36.15], [96.5, 36.25], [96.75, 36.15], [97.0, 36.25], [97.25, 36.15], [97.5, 36.25], [97.75, 36.15], [98.0, 36.25], [98.25, 36.15], [98.32, 36.18], [98.35, 36.25], [98.25, 36.5], [98.47, 37.03], [98.82, 37.18], [98.97, 37.53], [99.5, 37.75], [99.75, 37.65], [100.0, 37.75], [100.53, 37.53], [100.68, 37.18], [100.75, 37.15], [101.0, 37.25], [101.3, 37.13], [101.47, 37.53], [102.0, 37.75], [102.25, 37.65], [102.32, 37.68], [102.47, 38.03], [103.0, 38.25], [103.53, 38.03], [103.68, 37.68], [104.03, 37.53], [104.18, 37.18], [104.25, 37.15], [104.5, 37.25], [104.75, 37.15], [105.0, 37.25], [105.53, 37.03], [105.75, 36.5], [105.65, 36.25], [105.75, 36.0], [105.65, 35.75], [105.75, 35.5], [105.54, 35.0], [105.75, 34.5], [105.53, 33.97], [105.18, 33.82], [105.15, 33.75], [105.25, 33.5], [105.03, 32.97], [104.5, 32.75], [104.25, 32.85], [104.0, 32.75], [103.47, 32.97], [103.32, 33.32], [103.25, 33.35], [103.0, 33.25], [102.75, 33.35], [102.5, 33.25], [102.25, 33.35], [102.0, 33.25], [101.47, 33.47], [101.25, 34.0], [101.35, 34.25], [101.32, 34.32], [101.25, 34.35], [101.18, 34.32], [101.04, 34.0], [101.25, 33.5], [101.03, 32.97], [100.5, 32.75], [100.2, 32.88], [100.15, 32.75], [100.25, 32.5], [100.03, 31.97], [99.5, 31.75], [99.25, 31.85], [99.0, 31.75], [98.75, 31.85], [98.5, 31.75], [98.25, 31.85], [98.0, 31.75], [97.75, 31.85], [97.5, 31.75], [97.25, 31.85], [97.0, 31.75], [96.75, 31.85], [96.5, 31.75], [96.25, 31.85], [96.0, 31.75], [95.5, 31.96], [95.0, 31.75], [94.47, 31.97], [94.32, 32.32], [94.25, 32.35], [94.0, 32.25], [93.47, 32.47], [93.25, 33.0], [93.35, 33.25], [93.25, 33.5], [93.35, 33.75]]]]}, "2022-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.35, 33.75], [93.25, 34.0], [93.47, 34.53], [93.82, 34.68], [93.85, 34.75], [93.75, 35.0], [93.97, 35.53], [94.32, 35.68], [94.47, 36.03], [95.0, 36.25], [95.25, 36.15], [95.5, 36.25], [95.75, 36.15], [96.0, 36.25], [96.25, 36.15], [96.5, 36.25], [96.75, 36.15], [97.0, 36.25], [97.25, 36.15], [97.5, 36.25], [97.75, 36.15], [98.0, 36.25], [98.25, 36.15], [98.32, 36.18], [98.35, 36.25], [98.25, 36.5], [98.47, 37.03], [98.82, 37.18], [98.97, 37.53], [99.5, 37.75], [99.75, 37.65], [100.0, 37.75], [100.53, 37.53], [100.68, 37.18], [100.75, 37.15], [101.0, 37.25], [101.3, 37.13], [101.47, 37.53], [102.0, 37.75], [102.53, 37.53], [102.68, 37.18], [102.75, 37.15], [103.0, 37.25], [103.53, 37.03], [103.68, 36.68], [103.75, 36.65], [103.82, 36.68], [103.97, 37.03], [104.5, 37.25], [104.75, 37.15], [105.0, 37.25], [105.53, 37.03], [105.75, 36.5], [105.65, 36.25], [105.75, 36.0], [105.65, 35.75], [105.75, 35.5], [105.54, 35.0], [105.75, 34.5], [105.53, 33.97], [105.18, 33.82], [105.15, 33.75], [105.25, 33.5], [105.03, 32.97], [104.5, 32.75], [104.25, 32.85], [104.0, 32.75], [103.47, 32.97], [103.32, 33.32], [103.25, 33.35], [103.0, 33.25], [102.75, 33.35], [102.5, 33.25], [102.25, 33.35], [102.0, 33.25], [101.47, 33.47], [101.25, 34.0], [101.35, 34.25], [101.32, 34.32], [101.25, 34.35], [101.18, 34.32], [101.04, 34.0], [101.25, 33.5], [101.03, 32.97], [100.5, 32.75], [100.2, 32.88], [100.15, 32.75], [100.25, 32.5], [100.03, 31.97], [99.5, 31.75], [99.25, 31.85], [99.0, 31.75], [98.75, 31.85], [98.5, 31.75], [98.25, 31.85], [98.0, 31.75], [97.75, 31.85], [97.5, 31.75], [97.25, 31.85], [97.0, 31.75], [96.75, 31.85], [96.5, 31.75], [96.25, 31.85], [96.0, 31.75], [95.5, 31.96], [95.0, 31.75], [94.75, 31.85], [94.5, 31.75], [93.97, 31.97], [93.82, 32.32], [93.47, 32.47], [93.25, 33.0], [93.35, 33.25], [93.25, 33.5], [93.35, 33.75]]]]}, "2022-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.5, 33.75], [94.75, 33.65], [95.0, 33.75], [95.25, 33.65], [95.32, 33.68], [95.47, 34.03], [95.82, 34.18], [95.85, 34.25], [95.75, 34.5], [95.97, 35.03], [96.5, 35.25], [96.75, 35.15], [97.0, 35.25], [97.53, 35.03], [97.68, 34.68], [98.03, 34.53], [98.25, 34.0], [98.03, 33.47], [97.68, 33.32], [97.65, 33.25], [97.75, 33.0], [97.53, 32.47], [97.0, 32.25], [96.5, 32.46], [96.0, 32.25], [95.75, 32.35], [95.68, 32.32], [95.53, 31.97], [95.0, 31.75], [94.75, 31.85], [94.5, 31.75], [93.97, 31.97], [93.75, 32.5], [93.85, 32.75], [93.75, 33.0], [93.97, 33.53], [94.5, 33.75]]], [[[98.47, 34.47], [98.25, 35.0], [98.47, 35.53], [99.0, 35.75], [99.53, 35.53], [99.75, 35.0], [99.53, 34.47], [99.0, 34.25], [98.47, 34.47]]]]}, "2022-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.5, 33.75], [94.75, 33.65], [95.0, 33.75], [95.25, 33.65], [95.32, 33.68], [95.47, 34.03], [95.82, 34.18], [95.85, 34.25], [95.75, 34.5], [95.97, 35.03], [96.5, 35.25], [96.75, 35.15], [97.0, 35.25], [97.53, 35.03], [97.68, 34.68], [98.03, 34.53], [98.25, 34.0], [98.03, 33.47], [97.68, 33.32], [97.65, 33.25], [97.75, 33.0], [97.53, 32.47], [97.0, 32.25], [96.5, 32.46], [96.0, 32.25], [95.75, 32.35], [95.68, 32.32], [95.53, 31.97], [95.0, 31.75], [94.75, 31.85], [94.5, 31.75], [93.97, 31.97], [93.75, 32.5], [93.85, 32.75], [93.75, 33.0], [93.97, 33.53], [94.5, 33.75]]], [[[98.47, 34.47], [98.25, 35.0], [98.47, 35.53], [99.0, 35.75], [99.53, 35.53], [99.75, 35.0], [99.53, 34.47], [99.0, 34.25], [98.47, 34.47]]]]}, "2022-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.5, 33.75], [95.03, 33.53], [95.25, 33.0], [95.03, 32.47], [94.5, 32.25], [93.97, 32.47], [93.75, 33.0], [93.97, 33.53], [94.5, 33.75]]]]}, "2022-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.5, 33.75], [95.03, 33.53], [95.25, 33.0], [95.03, 32.47], [94.5, 32.25], [93.97, 32.47], [93.75, 33.0], [93.97, 33.53], [94.5, 33.75]]]]}, "2022-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.5, 33.75], [95.03, 33.53], [95.25, 33.0], [95.03, 32.47], [94.5, 32.25], [93.97, 32.47], [93.75, 33.0], [93.97, 33.53], [94.5, 33.75]]]]}, "2022-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.5, 33.75], [95.03, 33.53], [95.25, 33.0], [95.03, 32.47], [94.5, 32.25], [93.97, 32.47], [93.75, 33.0], [93.97, 33.53], [94.5, 33.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.504191047684401}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.043163206380925}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.6517928245705775, 8.409233887512471, 9.17546821789523, 8.794204960323782, 1.2139642958067611, 3.6400686539543017, -0.6889490855435838, -0.27822047133122396, 2.387539173228447, 1.3090251160381854]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.265391026489453, 23.31156338346466, 21.329333912644927, 21.231812978231858, 4.165408465179496, 5.700760705241919, -0.6889490855435838, -0.27822047133122396, 2.387539173228447, 1.3090251160381854]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.89862272402228, 5.870375155933168, 6.4655273054715705, 6.352024730168808, 3.8102513863690817, 6.0804109376773035, 3.28058012223363, 3.570794014606747, 6.042159258197273, 4.75044038424744]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.803863754141389, 8.963496039546726, 9.309803253231962, 9.504191047684401, 4.340321824020293, 7.27733992460378, 3.28058012223363, 3.570794014606747, 6.042159258197273, 4.75044038424744]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.552806750367018, 1.9159762521879233, 2.1578925509757494, 2.1729225405827286, 1.436370977359581, 2.2906119936353777, 1.2865010859835426, 1.4329486641092906, 2.4523543257602474, 1.9397115214145204]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0993411572561524, 3.0787593489335863, 3.3258658494095026, 3.638302639798775, 1.6499687773169167, 2.6966665264736855, 1.2865010859835426, 1.4329486641092906, 2.4523543257602474, 1.9397115214145204]}}