{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:35.396896", "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": "2018-Apr-27_to_2018-Apr-30_100.5_-1.5"}, "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": 2018040002681}, "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 27 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 30 2018"}, "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": 135925.17105819436}, "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": ["Indian Ocean"]}, "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": -1.5}, "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": 100.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "100.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 97.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 102.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.75}, "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": {"2018-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.97, 1.03], [97.5, 1.25], [97.75, 1.15], [98.0, 1.25], [98.25, 1.15], [98.32, 1.18], [98.47, 1.53], [99.0, 1.75], [99.53, 1.53], [99.75, 1.0], [99.65, 0.75], [99.68, 0.68], [100.03, 0.53], [100.18, 0.18], [100.53, 0.03], [100.68, -0.32], [101.03, -0.47], [101.25, -1.0], [101.15, -1.25], [101.18, -1.32], [101.53, -1.47], [101.75, -2.0], [101.54, -2.5], [101.68, -2.82], [102.03, -2.97], [102.25, -3.5], [102.03, -4.03], [101.5, -4.25], [101.25, -4.15], [101.0, -4.25], [100.75, -4.15], [100.5, -4.25], [99.97, -4.03], [99.8, -3.63], [99.5, -3.75], [98.97, -3.53], [98.75, -3.0], [98.85, -2.75], [98.75, -2.5], [98.85, -2.25], [98.75, -2.0], [98.85, -1.75], [98.82, -1.68], [98.47, -1.53], [98.25, -1.0], [98.35, -0.75], [98.32, -0.68], [98.25, -0.65], [98.0, -0.75], [97.75, -0.65], [97.5, -0.75], [96.97, -0.53], [96.75, 0.0], [96.85, 0.25], [96.75, 0.5], [96.97, 1.03]]]]}, "2018-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.97, 1.03], [97.5, 1.25], [97.75, 1.15], [98.0, 1.25], [98.25, 1.15], [98.32, 1.18], [98.47, 1.53], [99.0, 1.75], [99.53, 1.53], [99.75, 1.0], [99.65, 0.75], [99.68, 0.68], [100.03, 0.53], [100.18, 0.18], [100.53, 0.03], [100.68, -0.32], [101.03, -0.47], [101.25, -1.0], [101.15, -1.25], [101.18, -1.32], [101.53, -1.47], [101.68, -1.82], [102.03, -1.97], [102.25, -2.5], [102.13, -2.8], [102.53, -2.97], [102.75, -3.5], [102.53, -4.03], [102.0, -4.25], [101.75, -4.15], [101.5, -4.25], [101.25, -4.15], [101.0, -4.25], [100.75, -4.15], [100.5, -4.25], [99.97, -4.03], [99.8, -3.63], [99.5, -3.75], [98.97, -3.53], [98.82, -3.18], [98.75, -3.15], [98.68, -3.18], [98.53, -3.53], [98.0, -3.75], [97.47, -3.53], [97.25, -3.0], [97.35, -2.75], [97.25, -2.5], [97.35, -2.25], [97.25, -2.0], [97.35, -1.75], [97.25, -1.5], [97.47, -0.97], [98.0, -0.75], [97.75, -0.65], [97.5, -0.75], [96.97, -0.53], [96.75, 0.0], [96.85, 0.25], [96.75, 0.5], [96.97, 1.03]], [[98.25, -0.85], [98.32, -0.82], [98.35, -0.75], [98.32, -0.68], [98.25, -0.65], [98.0, -0.75], [98.25, -0.85]]]]}, "2018-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.97, 1.03], [97.5, 1.25], [97.75, 1.15], [98.0, 1.25], [98.25, 1.15], [98.32, 1.18], [98.47, 1.53], [99.0, 1.75], [99.53, 1.53], [99.75, 1.0], [99.65, 0.75], [99.68, 0.68], [100.03, 0.53], [100.18, 0.18], [100.53, 0.03], [100.68, -0.32], [101.03, -0.47], [101.25, -1.0], [101.15, -1.25], [101.18, -1.32], [101.53, -1.47], [101.68, -1.82], [102.03, -1.97], [102.25, -2.5], [102.13, -2.8], [102.53, -2.97], [102.75, -3.5], [102.53, -4.03], [102.0, -4.25], [101.75, -4.15], [101.5, -4.25], [101.25, -4.15], [101.0, -4.25], [100.75, -4.15], [100.5, -4.25], [99.97, -4.03], [99.8, -3.63], [99.5, -3.75], [98.97, -3.53], [98.82, -3.18], [98.75, -3.15], [98.68, -3.18], [98.53, -3.53], [98.0, -3.75], [97.47, -3.53], [97.25, -3.0], [97.35, -2.75], [97.25, -2.5], [97.35, -2.25], [97.25, -2.0], [97.35, -1.75], [97.25, -1.5], [97.47, -0.97], [98.0, -0.75], [97.75, -0.65], [97.5, -0.75], [96.97, -0.53], [96.75, 0.0], [96.85, 0.25], [96.75, 0.5], [96.97, 1.03]], [[98.25, -0.85], [98.32, -0.82], [98.35, -0.75], [98.32, -0.68], [98.25, -0.65], [98.0, -0.75], [98.25, -0.85]]]]}, "2018-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.97, -0.97], [100.5, -0.75], [101.03, -0.97], [101.18, -1.32], [101.53, -1.47], [101.68, -1.82], [102.03, -1.97], [102.25, -2.5], [102.13, -2.8], [102.53, -2.97], [102.75, -3.5], [102.53, -4.03], [102.0, -4.25], [101.47, -4.03], [101.25, -3.5], [101.38, -3.2], [100.97, -3.03], [100.82, -2.68], [100.47, -2.53], [100.32, -2.18], [99.97, -2.03], [99.75, -1.5], [99.97, -0.97]]], [[[97.25, -2.0], [97.35, -1.75], [97.25, -1.5], [97.47, -0.97], [98.0, -0.75], [98.25, -0.85], [98.5, -0.75], [99.03, -0.97], [99.18, -1.32], [99.53, -1.47], [99.75, -2.0], [99.65, -2.25], [99.75, -2.5], [99.53, -3.03], [99.0, -3.25], [98.75, -3.15], [98.68, -3.18], [98.53, -3.53], [98.0, -3.75], [97.47, -3.53], [97.25, -3.0], [97.35, -2.75], [97.25, -2.5], [97.35, -2.25], [97.25, -2.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9020490863670716}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2328734460481836}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.381329501325467, 28.552049801964756, 28.249845715378683, 27.817318587635555]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.37700274337675, 29.22155527248725, 28.77552970251861, 28.498574912691538]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2682650757050342, 1.4375661740500774, 1.1022121299581664, 0.8924652996790576]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9020490863670716, 1.8444669559129352, 1.4547998728539824, 1.1078710259247941]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.004804308820352, 2.360626195255291, 1.8176545947473068, 1.4889386431802245]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [3.1170593673925127, 2.778488181224174, 2.4649246378131426, 1.7116587361269338]}}