{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:20.784714", "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": "2025-Apr-21_to_2025-Apr-28_92.0_25.5"}, "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": 2025040002122}, "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": "April 21 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 210591.9555527551}, "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": ["Bangladesh", "China", "India", "Myanmar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "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": 25.5}, "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": 92.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "92.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 89.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 99.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[90.97, 24.97], [90.75, 25.5], [90.97, 26.03], [91.5, 26.25], [91.75, 26.15], [92.0, 26.25], [92.53, 26.03], [92.75, 25.5], [92.53, 24.97], [92.0, 24.75], [91.75, 24.85], [91.5, 24.75], [90.97, 24.97]]]]}, "2025-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[90.97, 24.97], [90.75, 25.5], [90.97, 26.03], [91.5, 26.25], [91.75, 26.15], [92.0, 26.25], [92.25, 26.15], [92.5, 26.25], [93.03, 26.03], [93.25, 25.5], [93.03, 24.97], [92.5, 24.75], [92.25, 24.85], [92.0, 24.75], [91.75, 24.85], [91.5, 24.75], [90.97, 24.97]]]]}, "2025-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.25, 25.5], [89.47, 26.03], [90.0, 26.25], [90.25, 26.15], [90.5, 26.25], [90.75, 26.15], [91.0, 26.25], [91.25, 26.15], [91.5, 26.25], [91.75, 26.15], [91.82, 26.18], [91.97, 26.53], [92.5, 26.75], [92.75, 26.65], [93.0, 26.75], [93.25, 26.65], [93.5, 26.75], [93.75, 26.65], [94.0, 26.75], [94.25, 26.65], [94.32, 26.68], [94.47, 27.03], [95.0, 27.25], [95.53, 27.03], [95.75, 26.5], [95.63, 26.2], [96.03, 26.03], [96.25, 25.5], [96.15, 25.25], [96.25, 25.0], [96.07, 24.57], [96.5, 24.75], [96.75, 24.65], [96.82, 24.68], [96.85, 24.75], [96.75, 25.0], [96.97, 25.53], [97.5, 25.75], [98.03, 25.53], [98.2, 25.13], [98.5, 25.25], [99.03, 25.03], [99.25, 24.5], [99.15, 24.25], [99.25, 24.0], [99.03, 23.47], [98.68, 23.32], [98.53, 22.97], [98.18, 22.82], [98.03, 22.47], [97.5, 22.25], [97.25, 22.35], [97.0, 22.25], [96.47, 22.47], [96.25, 23.0], [96.35, 23.25], [96.32, 23.32], [95.97, 23.47], [95.75, 24.0], [95.93, 24.43], [95.5, 24.25], [95.25, 24.35], [95.13, 24.3], [95.25, 24.0], [95.15, 23.75], [95.25, 23.5], [95.03, 22.97], [94.68, 22.82], [94.65, 22.75], [94.75, 22.5], [94.53, 21.97], [94.0, 21.75], [93.47, 21.97], [93.25, 22.5], [93.35, 22.75], [93.25, 23.0], [93.47, 23.53], [93.82, 23.68], [93.85, 23.75], [93.8, 23.88], [93.5, 23.75], [93.25, 23.85], [93.0, 23.75], [92.75, 23.85], [92.5, 23.75], [92.25, 23.85], [92.0, 23.75], [91.75, 23.85], [91.5, 23.75], [91.25, 23.85], [91.0, 23.75], [90.75, 23.85], [90.5, 23.75], [90.25, 23.85], [90.0, 23.75], [89.75, 23.85], [89.5, 23.75], [88.97, 23.97], [88.75, 24.5], [88.97, 25.03], [89.32, 25.18], [89.35, 25.25], [89.25, 25.5]], [[94.32, 24.82], [94.25, 24.85], [94.13, 24.8], [94.2, 24.63], [94.38, 24.7], [94.32, 24.82]]]]}, "2025-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.25, 25.5], [89.47, 26.03], [90.0, 26.25], [90.25, 26.15], [90.32, 26.18], [90.47, 26.53], [91.0, 26.75], [91.5, 26.54], [92.0, 26.75], [92.25, 26.65], [92.5, 26.75], [92.75, 26.65], [93.0, 26.75], [93.25, 26.65], [93.5, 26.75], [93.75, 26.65], [94.0, 26.75], [94.25, 26.65], [94.32, 26.68], [94.47, 27.03], [95.0, 27.25], [95.53, 27.03], [95.75, 26.5], [95.65, 26.25], [95.68, 26.18], [96.03, 26.03], [96.18, 25.68], [96.25, 25.65], [96.5, 25.75], [96.75, 25.65], [96.82, 25.68], [96.97, 26.03], [97.5, 26.25], [98.03, 26.03], [98.25, 25.5], [98.15, 25.25], [98.18, 25.18], [98.25, 25.15], [98.5, 25.25], [99.0, 25.04], [99.5, 25.25], [100.03, 25.03], [100.25, 24.5], [100.03, 23.97], [99.68, 23.82], [99.53, 23.47], [99.0, 23.25], [98.75, 23.35], [98.68, 23.32], [98.53, 22.97], [98.18, 22.82], [98.03, 22.47], [97.5, 22.25], [97.25, 22.35], [97.0, 22.25], [96.47, 22.47], [96.32, 22.82], [95.97, 22.97], [95.8, 23.38], [95.5, 23.25], [95.25, 23.35], [95.18, 23.32], [95.15, 23.25], [95.25, 23.0], [95.03, 22.47], [94.68, 22.32], [94.65, 22.25], [94.75, 22.0], [94.53, 21.47], [94.0, 21.25], [93.47, 21.47], [93.25, 22.0], [93.35, 22.25], [93.25, 22.5], [93.35, 22.75], [93.25, 23.0], [93.35, 23.25], [93.32, 23.32], [92.97, 23.47], [92.82, 23.82], [92.75, 23.85], [92.5, 23.75], [92.25, 23.85], [92.0, 23.75], [91.75, 23.85], [91.5, 23.75], [91.25, 23.85], [91.0, 23.75], [90.75, 23.85], [90.5, 23.75], [90.25, 23.85], [90.0, 23.75], [89.75, 23.85], [89.5, 23.75], [88.97, 23.97], [88.75, 24.5], [88.97, 25.03], [89.32, 25.18], [89.35, 25.25], [89.25, 25.5]]]]}, "2025-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.25, 25.5], [89.47, 26.03], [90.0, 26.25], [90.25, 26.15], [90.32, 26.18], [90.47, 26.53], [91.0, 26.75], [91.5, 26.54], [92.0, 26.75], [92.25, 26.65], [92.5, 26.75], [92.75, 26.65], [93.0, 26.75], [93.25, 26.65], [93.5, 26.75], [93.75, 26.65], [94.0, 26.75], [94.25, 26.65], [94.32, 26.68], [94.47, 27.03], [95.0, 27.25], [95.25, 27.15], [95.5, 27.25], [96.03, 27.03], [96.25, 26.5], [96.04, 26.0], [96.18, 25.68], [96.25, 25.65], [96.5, 25.75], [96.75, 25.65], [96.82, 25.68], [96.97, 26.03], [97.5, 26.25], [98.03, 26.03], [98.25, 25.5], [98.15, 25.25], [98.18, 25.18], [98.25, 25.15], [98.5, 25.25], [99.0, 25.04], [99.5, 25.25], [100.03, 25.03], [100.25, 24.5], [100.03, 23.97], [99.68, 23.82], [99.53, 23.47], [99.0, 23.25], [98.75, 23.35], [98.68, 23.32], [98.53, 22.97], [98.18, 22.82], [98.03, 22.47], [97.5, 22.25], [97.25, 22.35], [97.0, 22.25], [96.47, 22.47], [96.32, 22.82], [95.97, 22.97], [95.8, 23.38], [95.5, 23.25], [95.25, 23.35], [95.18, 23.32], [95.15, 23.25], [95.25, 23.0], [95.03, 22.47], [94.68, 22.32], [94.65, 22.25], [94.75, 22.0], [94.53, 21.47], [94.0, 21.25], [93.47, 21.47], [93.25, 22.0], [93.35, 22.25], [93.25, 22.5], [93.35, 22.75], [93.25, 23.0], [93.35, 23.25], [93.32, 23.32], [92.97, 23.47], [92.82, 23.82], [92.75, 23.85], [92.5, 23.75], [92.25, 23.85], [92.0, 23.75], [91.75, 23.85], [91.5, 23.75], [91.25, 23.85], [91.0, 23.75], [90.75, 23.85], [90.5, 23.75], [90.25, 23.85], [90.0, 23.75], [89.75, 23.85], [89.5, 23.75], [88.97, 23.97], [88.75, 24.5], [88.97, 25.03], [89.32, 25.18], [89.35, 25.25], [89.25, 25.5]]]]}, "2025-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.47, 25.53], [89.82, 25.68], [89.97, 26.03], [90.32, 26.18], [90.47, 26.53], [91.0, 26.75], [91.5, 26.54], [92.0, 26.75], [92.25, 26.65], [92.5, 26.75], [92.75, 26.65], [93.0, 26.75], [93.25, 26.65], [93.5, 26.75], [93.75, 26.65], [94.0, 26.75], [94.25, 26.65], [94.32, 26.68], [94.47, 27.03], [95.0, 27.25], [95.25, 27.15], [95.5, 27.25], [96.03, 27.03], [96.25, 26.5], [96.04, 26.0], [96.18, 25.68], [96.25, 25.65], [96.5, 25.75], [96.75, 25.65], [96.82, 25.68], [96.97, 26.03], [97.5, 26.25], [98.03, 26.03], [98.25, 25.5], [98.15, 25.25], [98.18, 25.18], [98.25, 25.15], [98.5, 25.25], [99.0, 25.04], [99.5, 25.25], [100.03, 25.03], [100.25, 24.5], [100.03, 23.97], [99.68, 23.82], [99.53, 23.47], [99.0, 23.25], [98.75, 23.35], [98.68, 23.32], [98.53, 22.97], [98.18, 22.82], [98.03, 22.47], [97.5, 22.25], [97.25, 22.35], [97.0, 22.25], [96.47, 22.47], [96.32, 22.82], [95.97, 22.97], [95.8, 23.38], [95.5, 23.25], [95.25, 23.35], [95.18, 23.32], [95.15, 23.25], [95.25, 23.0], [95.03, 22.47], [94.68, 22.32], [94.65, 22.25], [94.75, 22.0], [94.53, 21.47], [94.0, 21.25], [93.47, 21.47], [93.25, 22.0], [93.35, 22.25], [93.25, 22.5], [93.35, 22.75], [93.25, 23.0], [93.35, 23.25], [93.32, 23.32], [92.97, 23.47], [92.82, 23.82], [92.75, 23.85], [92.5, 23.75], [92.25, 23.85], [92.0, 23.75], [91.75, 23.85], [91.5, 23.75], [91.25, 23.85], [91.0, 23.75], [90.75, 23.85], [90.5, 23.75], [90.25, 23.85], [90.0, 23.75], [89.47, 23.97], [89.25, 24.5], [89.35, 24.75], [89.25, 25.0], [89.47, 25.53]]]]}, "2025-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.47, 23.47], [97.25, 24.0], [97.47, 24.53], [98.0, 24.75], [98.53, 24.53], [98.75, 24.0], [98.53, 23.47], [98.0, 23.25], [97.47, 23.47]]], [[[91.47, 26.03], [92.0, 26.25], [92.3, 26.13], [92.47, 26.53], [93.0, 26.75], [93.53, 26.53], [93.68, 26.18], [93.75, 26.15], [93.82, 26.18], [93.97, 26.53], [94.5, 26.75], [94.75, 26.65], [94.82, 26.68], [94.97, 27.03], [95.5, 27.25], [96.03, 27.03], [96.25, 26.5], [96.04, 26.0], [96.25, 25.5], [96.15, 25.25], [96.25, 25.0], [96.03, 24.47], [95.68, 24.32], [95.53, 23.97], [95.18, 23.82], [95.15, 23.75], [95.25, 23.5], [95.15, 23.25], [95.25, 23.0], [95.03, 22.47], [94.68, 22.32], [94.65, 22.25], [94.75, 22.0], [94.53, 21.47], [94.0, 21.25], [93.47, 21.47], [93.25, 22.0], [93.35, 22.25], [93.25, 22.5], [93.35, 22.75], [93.25, 23.0], [93.35, 23.25], [93.25, 23.5], [93.47, 24.03], [93.82, 24.18], [93.88, 24.3], [93.47, 24.47], [93.32, 24.82], [93.25, 24.85], [93.13, 24.8], [93.25, 24.5], [93.03, 23.97], [92.5, 23.75], [91.97, 23.97], [91.75, 24.5], [91.88, 24.8], [91.47, 24.97], [91.25, 25.5], [91.47, 26.03]]]]}, "2025-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.0, 22.75], [94.53, 22.53], [94.75, 22.0], [94.53, 21.47], [94.0, 21.25], [93.47, 21.47], [93.25, 22.0], [93.47, 22.53], [94.0, 22.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.651690785208189}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.353828166491103}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.826427714029933, 21.98357289632162, 27.672954554136084, 28.232992940406177, 28.037393018934495, 28.56907154936772, 27.08903386433923, 30.455139414469443]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.91594594319662, 23.287202453613304, 32.252002970377646, 33.700991566975915, 33.49202626546224, 35.14214986165365, 33.4943951924642, 30.455139414469443]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8420918844790037, 2.233217032777399, 3.0815279553694173, 3.352461950351961, 3.2676760365538797, 3.8638972821512723, 2.936480907417631, 2.8416240337123213]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9022170111905439, 2.4794179719902445, 4.6792240361209565, 5.261481532890286, 5.504612392998467, 6.651690785208189, 4.021462754888489, 2.8416240337123213]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3659430079040165, 1.5870115313080078, 1.6057096936840594, 1.6678115073188666, 1.64458051509492, 1.9696279094338938, 1.521227945395108, 1.3014175153108867]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.417537535646907, 1.8157384558497214, 2.360496991396949, 2.492962267763919, 2.6431917916563954, 3.249284202332917, 1.9826685191234967, 1.3014175153108867]}}