{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:34.206672", "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": "2026-Apr-26_to_2026-Apr-29_106.5_-3.0"}, "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": 2026040002670}, "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 26 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 29 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 83352.26066061675}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": ["Java Sea", "South China Sea"]}, "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": -3.0}, "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": 106.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "106.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 105.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 108.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.25}, "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": {"2026-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.97, -1.97], [105.32, -1.82], [105.47, -1.47], [106.0, -1.25], [106.25, -1.35], [106.5, -1.25], [106.75, -1.35], [107.0, -1.25], [107.25, -1.35], [107.5, -1.25], [108.03, -1.47], [108.18, -1.82], [108.53, -1.97], [108.75, -2.5], [108.65, -2.75], [108.75, -3.0], [108.53, -3.53], [108.18, -3.68], [108.03, -4.03], [107.5, -4.25], [107.25, -4.15], [107.0, -4.25], [106.75, -4.15], [106.68, -4.18], [106.53, -4.53], [106.0, -4.75], [105.47, -4.53], [105.25, -4.0], [105.35, -3.75], [105.32, -3.68], [104.97, -3.53], [104.75, -3.0], [104.85, -2.75], [104.75, -2.5], [104.97, -1.97]]]]}, "2026-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.97, -1.97], [105.32, -1.82], [105.46, -1.5], [105.25, -1.0], [105.47, -0.47], [106.0, -0.25], [106.25, -0.35], [106.5, -0.25], [107.03, -0.47], [107.25, -1.0], [107.15, -1.25], [107.18, -1.32], [107.25, -1.35], [107.5, -1.25], [108.03, -1.47], [108.18, -1.82], [108.53, -1.97], [108.75, -2.5], [108.65, -2.75], [108.68, -2.82], [109.03, -2.97], [109.25, -3.5], [109.03, -4.03], [108.68, -4.18], [108.53, -4.53], [108.0, -4.75], [107.75, -4.65], [107.5, -4.75], [106.97, -4.53], [106.82, -4.18], [106.75, -4.15], [106.68, -4.18], [106.53, -4.53], [106.0, -4.75], [105.47, -4.53], [105.25, -4.0], [105.35, -3.75], [105.32, -3.68], [104.97, -3.53], [104.75, -3.0], [104.85, -2.75], [104.75, -2.5], [104.97, -1.97]]]]}, "2026-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.97, -1.97], [105.32, -1.82], [105.46, -1.5], [105.25, -1.0], [105.47, -0.47], [106.0, -0.25], [106.25, -0.35], [106.5, -0.25], [107.03, -0.47], [107.25, -1.0], [107.15, -1.25], [107.18, -1.32], [107.25, -1.35], [107.5, -1.25], [108.03, -1.47], [108.18, -1.82], [108.53, -1.97], [108.75, -2.5], [108.65, -2.75], [108.68, -2.82], [109.03, -2.97], [109.25, -3.5], [109.03, -4.03], [108.68, -4.18], [108.53, -4.53], [108.0, -4.75], [107.75, -4.65], [107.5, -4.75], [106.97, -4.53], [106.82, -4.18], [106.75, -4.15], [106.68, -4.18], [106.53, -4.53], [106.0, -4.75], [105.47, -4.53], [105.25, -4.0], [105.35, -3.75], [105.32, -3.68], [104.97, -3.53], [104.75, -3.0], [104.85, -2.75], [104.75, -2.5], [104.97, -1.97]]]]}, "2026-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.46, -1.5], [105.25, -1.0], [105.47, -0.47], [106.0, -0.25], [106.25, -0.35], [106.5, -0.25], [107.03, -0.47], [107.25, -1.0], [107.15, -1.25], [107.18, -1.32], [107.25, -1.35], [107.5, -1.25], [108.03, -1.47], [108.18, -1.82], [108.53, -1.97], [108.75, -2.5], [108.65, -2.75], [108.68, -2.82], [109.03, -2.97], [109.25, -3.5], [109.03, -4.03], [108.68, -4.18], [108.53, -4.53], [108.0, -4.75], [107.75, -4.65], [107.5, -4.75], [106.97, -4.53], [106.75, -4.0], [106.88, -3.7], [106.75, -3.65], [106.5, -3.75], [106.0, -3.54], [105.5, -3.75], [104.97, -3.53], [104.75, -3.0], [104.97, -2.47], [105.38, -2.3], [105.25, -2.0], [105.46, -1.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.8417261459421752}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1583432652720846}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.58263905843097, 28.762513732910122, 28.608784352997247, 28.644173391241736]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.195578511555993, 29.336081441243493, 29.054045613606775, 29.133508300781273]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1585782902258104, 1.248860852117336, 1.0991906345160718, 1.1135246171939817]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5938880090793077, 1.8417261459421752, 1.3320480774423231, 1.4146274164221495]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.924562892652943, 2.0468385900971326, 1.8519234852444695, 1.9728164534374013]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.392858191225012, 2.746660763660402, 2.1804668076219813, 2.5885324567102606]}}