{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:11.842516", "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-Mar-31_to_2026-Apr-20_126.0_8.5"}, "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": 2026030002496}, "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": "March 31 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 20 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 21}, "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": 139591.39371646976}, "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": ["Philippines"]}, "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": ["Philippine 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": 8.5}, "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": 126.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 127.75}, "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": 13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, 11.0], [125.47, 11.53], [126.0, 11.75], [126.53, 11.53], [126.68, 11.18], [127.03, 11.03], [127.25, 10.5], [127.03, 9.97], [126.5, 9.75], [125.97, 9.97], [125.82, 10.32], [125.47, 10.47], [125.25, 11.0]]]]}, "2026-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, 10.53], [125.0, 10.75], [125.25, 10.65], [125.32, 10.68], [125.35, 10.75], [125.25, 11.0], [125.47, 11.53], [126.0, 11.75], [126.53, 11.53], [126.68, 11.18], [127.03, 11.03], [127.25, 10.5], [127.15, 10.25], [127.18, 10.18], [127.53, 10.03], [127.75, 9.5], [127.65, 9.25], [127.75, 9.0], [127.53, 8.47], [127.18, 8.32], [127.15, 8.25], [127.25, 8.0], [127.03, 7.47], [126.5, 7.25], [125.97, 7.47], [125.82, 7.82], [125.47, 7.97], [125.25, 8.5], [125.43, 8.93], [125.0, 8.75], [124.47, 8.97], [124.25, 9.5], [124.35, 9.75], [124.25, 10.0], [124.47, 10.53]]]]}, "2026-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, 10.53], [124.82, 10.68], [124.97, 11.03], [125.32, 11.18], [125.47, 11.53], [126.0, 11.75], [126.25, 11.65], [126.5, 11.75], [127.03, 11.53], [127.25, 11.0], [127.15, 10.75], [127.18, 10.68], [127.25, 10.65], [127.5, 10.75], [128.03, 10.53], [128.25, 10.0], [128.03, 9.47], [127.68, 9.32], [127.65, 9.25], [127.75, 9.0], [127.53, 8.47], [127.18, 8.32], [127.15, 8.25], [127.25, 8.0], [127.03, 7.47], [126.5, 7.25], [125.97, 7.47], [125.82, 7.82], [125.47, 7.97], [125.25, 8.5], [125.43, 8.93], [125.0, 8.75], [124.47, 8.97], [124.25, 9.5], [124.35, 9.75], [124.25, 10.0], [124.47, 10.53]]]]}, "2026-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, 10.53], [124.82, 10.68], [124.85, 10.75], [124.75, 11.0], [124.97, 11.53], [125.32, 11.68], [125.47, 12.03], [125.82, 12.18], [125.85, 12.25], [125.75, 12.5], [125.85, 12.75], [125.75, 13.0], [125.97, 13.53], [126.5, 13.75], [127.03, 13.53], [127.25, 13.0], [127.15, 12.75], [127.25, 12.5], [127.15, 12.25], [127.25, 12.0], [127.15, 11.75], [127.25, 11.5], [127.15, 11.25], [127.25, 11.0], [127.15, 10.75], [127.18, 10.68], [127.25, 10.65], [127.5, 10.75], [128.03, 10.53], [128.25, 10.0], [128.03, 9.47], [127.68, 9.32], [127.65, 9.25], [127.75, 9.0], [127.53, 8.47], [127.18, 8.32], [127.15, 8.25], [127.25, 8.0], [127.03, 7.47], [126.5, 7.25], [125.97, 7.47], [125.82, 7.82], [125.47, 7.97], [125.25, 8.5], [125.43, 8.93], [125.0, 8.75], [124.47, 8.97], [124.25, 9.5], [124.35, 9.75], [124.25, 10.0], [124.47, 10.53]]]]}, "2026-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.75, 10.0], [123.97, 10.53], [124.5, 10.75], [124.75, 10.65], [124.82, 10.68], [124.85, 10.75], [124.75, 11.0], [124.96, 11.5], [124.75, 12.0], [124.85, 12.25], [124.82, 12.32], [124.75, 12.35], [124.5, 12.25], [123.97, 12.47], [123.75, 13.0], [123.97, 13.53], [124.5, 13.75], [124.75, 13.65], [124.82, 13.68], [124.97, 14.03], [125.5, 14.25], [125.75, 14.15], [126.0, 14.25], [126.53, 14.03], [126.68, 13.68], [127.03, 13.53], [127.25, 13.0], [127.15, 12.75], [127.25, 12.5], [127.15, 12.25], [127.25, 12.0], [127.15, 11.75], [127.25, 11.5], [127.15, 11.25], [127.25, 11.0], [127.15, 10.75], [127.18, 10.68], [127.25, 10.65], [127.5, 10.75], [128.03, 10.53], [128.25, 10.0], [128.03, 9.47], [127.68, 9.32], [127.65, 9.25], [127.75, 9.0], [127.53, 8.47], [127.18, 8.32], [127.03, 7.97], [126.5, 7.75], [126.25, 7.85], [126.0, 7.75], [125.47, 7.97], [125.25, 8.5], [125.43, 8.93], [125.0, 8.75], [124.47, 8.97], [124.32, 9.32], [123.97, 9.47], [123.75, 10.0]]]]}, "2026-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.47, 14.03], [124.0, 14.25], [124.25, 14.15], [124.5, 14.25], [124.75, 14.15], [125.0, 14.25], [125.25, 14.15], [125.5, 14.25], [125.75, 14.15], [126.0, 14.25], [126.53, 14.03], [126.68, 13.68], [127.03, 13.53], [127.25, 13.0], [127.15, 12.75], [127.25, 12.5], [127.15, 12.25], [127.25, 12.0], [127.15, 11.75], [127.25, 11.5], [127.15, 11.25], [127.25, 11.0], [127.15, 10.75], [127.18, 10.68], [127.25, 10.65], [127.5, 10.75], [128.03, 10.53], [128.25, 10.0], [128.03, 9.47], [127.68, 9.32], [127.65, 9.25], [127.75, 9.0], [127.53, 8.47], [127.18, 8.32], [127.03, 7.97], [126.5, 7.75], [125.97, 7.97], [125.75, 8.5], [125.85, 8.75], [125.82, 8.82], [125.5, 8.96], [125.0, 8.75], [124.47, 8.97], [124.32, 9.32], [123.97, 9.47], [123.75, 10.0], [123.97, 10.53], [124.32, 10.68], [124.47, 11.03], [124.82, 11.18], [124.96, 11.5], [124.75, 12.0], [124.85, 12.25], [124.82, 12.32], [124.75, 12.35], [124.5, 12.25], [124.25, 12.35], [124.0, 12.25], [123.47, 12.47], [123.25, 13.0], [123.35, 13.25], [123.25, 13.5], [123.47, 14.03]]]]}, "2026-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 7.97], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.0, 7.75], [125.47, 7.97]]], [[[124.0, 14.25], [124.25, 14.15], [124.5, 14.25], [124.75, 14.15], [125.0, 14.25], [125.25, 14.15], [125.5, 14.25], [125.75, 14.15], [126.0, 14.25], [126.53, 14.03], [126.68, 13.68], [127.03, 13.53], [127.25, 13.0], [127.15, 12.75], [127.25, 12.5], [127.15, 12.25], [127.25, 12.0], [127.15, 11.75], [127.25, 11.5], [127.03, 10.97], [126.5, 10.75], [126.25, 10.85], [126.0, 10.75], [125.57, 10.93], [125.75, 10.5], [125.53, 9.97], [125.18, 9.82], [125.03, 9.47], [124.5, 9.25], [123.97, 9.47], [123.75, 10.0], [123.97, 10.53], [124.32, 10.68], [124.47, 11.03], [125.0, 11.25], [125.43, 11.07], [125.32, 11.32], [124.97, 11.47], [124.75, 12.0], [124.85, 12.25], [124.82, 12.32], [124.75, 12.35], [124.5, 12.25], [124.25, 12.35], [124.0, 12.25], [123.47, 12.47], [123.25, 13.0], [123.35, 13.25], [123.25, 13.5], [123.47, 14.03], [124.0, 14.25]]]]}, "2026-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 7.97], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.0, 7.75], [125.47, 7.97]]], [[[124.0, 14.25], [124.25, 14.15], [124.5, 14.25], [124.75, 14.15], [125.0, 14.25], [125.25, 14.15], [125.5, 14.25], [125.75, 14.15], [126.0, 14.25], [126.53, 14.03], [126.75, 13.5], [126.65, 13.25], [126.75, 13.0], [126.53, 12.47], [126.18, 12.32], [126.15, 12.25], [126.18, 12.18], [126.53, 12.03], [126.75, 11.5], [126.53, 10.97], [126.0, 10.75], [125.57, 10.93], [125.75, 10.5], [125.53, 9.97], [125.18, 9.82], [125.03, 9.47], [124.5, 9.25], [123.97, 9.47], [123.75, 10.0], [123.97, 10.53], [124.32, 10.68], [124.47, 11.03], [125.0, 11.25], [125.43, 11.07], [125.32, 11.32], [124.97, 11.47], [124.75, 12.0], [124.85, 12.25], [124.82, 12.32], [124.75, 12.35], [124.5, 12.25], [124.25, 12.35], [124.0, 12.25], [123.47, 12.47], [123.25, 13.0], [123.35, 13.25], [123.25, 13.5], [123.47, 14.03], [124.0, 14.25]]]]}, "2026-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.0, 7.75], [125.47, 7.97], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25]]]]}, "2026-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.0, 7.75], [125.47, 7.97], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25]]]]}, "2026-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, 8.5], [125.47, 9.03], [126.0, 9.25], [126.53, 9.03], [126.68, 8.68], [127.03, 8.53], [127.25, 8.0], [127.13, 7.7], [127.53, 7.53], [127.75, 7.0], [127.65, 6.75], [127.75, 6.5], [127.53, 5.97], [127.0, 5.75], [126.47, 5.97], [126.25, 6.5], [126.35, 6.75], [126.25, 7.0], [126.38, 7.3], [125.97, 7.47], [125.82, 7.82], [125.47, 7.97], [125.25, 8.5]]]]}, "2026-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.38, 7.3], [125.97, 7.47], [125.75, 8.0], [125.97, 8.53], [126.5, 8.75], [127.03, 8.53], [127.25, 8.0], [127.13, 7.7], [127.53, 7.53], [127.75, 7.0], [127.65, 6.75], [127.75, 6.5], [127.53, 5.97], [127.0, 5.75], [126.47, 5.97], [126.25, 6.5], [126.35, 6.75], [126.25, 7.0], [126.38, 7.3]]]]}, "2026-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, 8.5], [125.47, 9.03], [126.0, 9.25], [126.53, 9.03], [126.68, 8.68], [127.03, 8.53], [127.25, 8.0], [127.13, 7.7], [127.53, 7.53], [127.75, 7.0], [127.65, 6.75], [127.75, 6.5], [127.53, 5.97], [127.0, 5.75], [126.47, 5.97], [126.25, 6.5], [126.35, 6.75], [126.25, 7.0], [126.38, 7.3], [125.97, 7.47], [125.82, 7.82], [125.47, 7.97], [125.25, 8.5]]]]}, "2026-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.68, 8.68], [127.03, 8.53], [127.25, 8.0], [127.15, 7.75], [127.18, 7.68], [127.53, 7.53], [127.75, 7.0], [127.53, 6.47], [127.0, 6.25], [126.47, 6.47], [126.32, 6.82], [125.97, 6.97], [125.8, 7.37], [125.5, 7.25], [124.97, 7.47], [124.75, 8.0], [124.97, 8.53], [125.32, 8.68], [125.47, 9.03], [126.0, 9.25]]]]}, "2026-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.63, 8.2], [127.03, 8.03], [127.25, 7.5], [127.03, 6.97], [126.5, 6.75], [125.97, 6.97], [125.8, 7.37], [125.5, 7.25], [124.97, 7.47], [124.75, 8.0], [124.97, 8.53], [125.32, 8.68], [125.47, 9.03], [126.0, 9.25]]]]}, "2026-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.63, 8.2], [127.03, 8.03], [127.25, 7.5], [127.03, 6.97], [126.5, 6.75], [125.97, 6.97], [125.8, 7.37], [125.5, 7.25], [124.97, 7.47], [124.75, 8.0], [124.97, 8.53], [125.32, 8.68], [125.47, 9.03], [126.0, 9.25]]]]}, "2026-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, 8.5], [125.47, 9.03], [126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.63, 8.2], [127.03, 8.03], [127.25, 7.5], [127.03, 6.97], [126.5, 6.75], [125.97, 6.97], [125.75, 7.5], [125.88, 7.8], [125.47, 7.97], [125.25, 8.5]]]]}, "2026-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.0, 7.75], [125.47, 7.97], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25]]]]}, "2026-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.0, 7.75], [125.47, 7.97], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25]]]]}, "2026-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.0, 7.75], [125.47, 7.97], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25]]]]}, "2026-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.0, 7.75], [125.47, 7.97], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.8040370732323936}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9257450121507962}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.55413716634115, 27.552181498209677, 27.738929239908884, 27.65399880042446, 27.826939731174036, 27.716521962483796, 27.805346194180572, 27.905966695149743, 28.26374206542971, 28.969453430175804, 27.777199045817042, 27.52076789008248, 27.772163645426474, 27.405838012695312, 27.651745520697716, 27.56094682481563, 28.195320383707724, 28.839978790283226, 29.006616210937523, 28.888269042968773, 28.666168467203818]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.63384908040365, 28.27058054606124, 28.166492716471396, 28.482317860921228, 28.56530914306643, 28.106270090738974, 28.540120697021507, 28.85016021728518, 28.26374206542971, 28.969453430175804, 28.575742340087913, 27.763172403971396, 28.560005442301474, 28.756814575195335, 29.069524383544945, 29.265346781412802, 29.135750071207724, 28.839978790283226, 29.006616210937523, 28.888269042968773, 28.666168467203818]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7130870140059073, 0.8640531656324413, 1.0052727676162163, 0.8604862701695288, 0.959366398870644, 0.8501434165023027, 0.8531616120555466, 0.9405747091947774, 0.9786663435788228, 1.658480189891577, 0.8601916073970415, 0.7302610928449743, 0.8194542949029824, 0.9864852039315111, 1.4054314901240066, 1.2909656396915352, 1.3811594959366005, 1.302508436651749, 1.4423898138794016, 1.3095144802734922, 1.0792990877414468]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.79348449943177, 1.2209837221553244, 1.4574751547327764, 1.3797624473472183, 1.4036303492504203, 1.0941409571280474, 1.3045052789116767, 1.585110949552984, 0.9786663435788228, 1.658480189891577, 1.2469077229179675, 0.7610055848082311, 1.1664369109179233, 1.3365454422049083, 1.631686971038505, 1.8040370732323936, 1.631048581616085, 1.302508436651749, 1.4423898138794016, 1.3095144802734922, 1.0792990877414468]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4936195338030287, 1.6538400770622588, 1.9667610129686082, 1.6836232194630123, 1.8798043612156283, 1.6630760205582817, 1.6026338975321088, 1.7020781107658496, 1.2742449577126946, 2.14163813858122, 1.4499915024713061, 1.4049830425207512, 1.395583214914916, 1.445954239962198, 1.772610221865432, 1.61860805543226, 1.749944684189881, 1.5856025510033975, 1.7201681667763022, 1.5316243328089691, 1.2224564862365026]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6118916585678953, 2.0298890117591957, 2.6928755283711587, 2.3138155800087357, 2.5386947986710084, 2.0146823853116023, 1.957162649244836, 2.1035349266322974, 1.2742449577126946, 2.14163813858122, 1.588771289695426, 1.478044605969336, 1.5061635613822468, 1.7013485145993381, 2.0391697977440515, 2.2306097245006953, 2.008818514355607, 1.5856025510033975, 1.7201681667763022, 1.5316243328089691, 1.2224564862365026]}}