{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:24:52.278491", "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": "2021-May-22_to_2021-Jun-01_148.5_-8.0"}, "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": 2021050002629}, "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 22 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 01 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 11}, "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": 113101.88640749601}, "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": ["Papua New Guinea"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": ["Coral Sea", "Solomon Sea", "Woodlark Ridge"]}, "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": -8.0}, "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": 148.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "148.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 148.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 151.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[148.75, -9.146], [148.5, -9.25], [147.97, -9.03], [147.75, -8.5], [147.854, -8.25], [147.844, -8.226], [147.823, -8.177], [147.47, -8.03], [147.25, -7.5], [147.354, -7.25], [147.25, -7.0], [147.47, -6.47], [148.0, -6.25], [148.249, -6.354], [148.25, -6.354], [148.274, -6.344], [148.323, -6.323], [148.47, -5.97], [149.0, -5.75], [149.25, -5.854], [149.5, -5.75], [150.03, -5.97], [150.177, -6.323], [150.53, -6.47], [150.677, -6.823], [151.03, -6.97], [151.25, -7.5], [151.146, -7.749], [151.146, -7.75], [151.177, -7.823], [151.53, -7.97], [151.677, -8.323], [152.03, -8.47], [152.25, -9.0], [152.146, -9.25], [152.25, -9.5], [152.146, -9.75], [152.25, -10.0], [152.146, -10.25], [152.25, -10.5], [152.146, -10.75], [152.25, -11.0], [152.03, -11.53], [151.5, -11.75], [151.25, -11.646], [151.0, -11.75], [150.75, -11.646], [150.5, -11.75], [149.97, -11.53], [149.75, -11.0], [149.97, -10.47], [150.323, -10.323], [150.375, -10.198], [149.97, -10.03], [149.823, -9.677], [149.47, -9.53], [149.323, -9.177], [149.25, -9.146], [149.0, -9.25], [148.75, -9.146]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "N.Australia", "Equatorial.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-05-22T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[150.32322330470336, -10.323223304703363], [150.46966991411009, -9.969669914110089], [150.82322330470336, -9.823223304703363], [150.96966991411009, -9.469669914110089], [151.5, -9.25], [152.03033008588991, -9.469669914110089], [152.25, -10.0], [152.14644660940672, -10.25], [152.25, -10.5], [152.14644660940672, -10.75], [152.25, -11.0], [152.03033008588991, -11.530330085889911], [151.5, -11.75], [151.25, -11.646446609406727], [151.0, -11.75], [150.75, -11.646446609406727], [150.5, -11.75], [149.96966991411009, -11.530330085889911], [149.75, -11.0], [149.96966991411009, -10.469669914110089], [150.32322330470336, -10.323223304703363]]]}, "2021-05-23T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[148.32322330470336, -8.676776695296637], [147.96966991411009, -8.530330085889911], [147.75, -8.0], [147.96966991411009, -7.4696699141100895], [148.32322330470336, -7.3232233047033635], [148.46966991411009, -6.9696699141100895], [149.0, -6.75], [149.25, -6.853553390593273], [149.5, -6.75], [150.03033008588991, -6.9696699141100895], [150.17677669529664, -7.3232233047033635], [150.53033008588991, -7.4696699141100895], [150.67677669529664, -7.8232233047033635], [151.03033008588991, -7.9696699141100895], [151.17677669529664, -8.323223304703363], [151.53033008588991, -8.469669914110089], [151.67677669529664, -8.823223304703363], [152.03033008588991, -8.969669914110089], [152.25, -9.5], [152.14644660940672, -9.75], [152.25, -10.0], [152.14644660940672, -10.25], [152.25, -10.5], [152.14644660940672, -10.75], [152.25, -11.0], [152.03033008588991, -11.530330085889911], [151.5, -11.75], [151.25, -11.646446609406727], [151.0, -11.75], [150.75, -11.646446609406727], [150.5, -11.75], [149.96966991411009, -11.530330085889911], [149.75, -11.0], [149.96966991411009, -10.469669914110089], [150.32322330470336, -10.323223304703363], [150.375, -10.198223304703363], [149.96966991411009, -10.030330085889911], [149.82322330470336, -9.676776695296637], [149.46966991411009, -9.530330085889911], [149.32322330470336, -9.176776695296637], [149.25, -9.146446609406727], [149.0, -9.25], [148.46966991411009, -9.030330085889911], [148.32322330470336, -8.676776695296637]]]}, "2021-05-24T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[147.35355339059328, -7.25], [147.25, -7.0], [147.46966991411009, -6.4696699141100895], [148.0, -6.25], [148.25, -6.353553390593273], [148.5, -6.25], [148.75, -6.353553390593273], [149.0, -6.25], [149.25, -6.353553390593273], [149.5, -6.25], [150.03033008588991, -6.4696699141100895], [150.17677669529664, -6.8232233047033635], [150.53033008588991, -6.9696699141100895], [150.67677669529664, -7.3232233047033635], [151.03033008588991, -7.4696699141100895], [151.17677669529664, -7.8232233047033635], [151.53033008588991, -7.9696699141100895], [151.67677669529664, -8.323223304703363], [152.03033008588991, -8.469669914110089], [152.25, -9.0], [152.14644660940672, -9.25], [152.25, -9.5], [152.14644660940672, -9.75], [152.25, -10.0], [152.14644660940672, -10.25], [152.25, -10.5], [152.14644660940672, -10.75], [152.25, -11.0], [152.03033008588991, -11.530330085889911], [151.5, -11.75], [151.25, -11.646446609406727], [151.0, -11.75], [150.75, -11.646446609406727], [150.5, -11.75], [149.96966991411009, -11.530330085889911], [149.75, -11.0], [149.96966991411009, -10.469669914110089], [150.32322330470336, -10.323223304703363], [150.375, -10.198223304703363], [149.96966991411009, -10.030330085889911], [149.82322330470336, -9.676776695296637], [149.46966991411009, -9.530330085889911], [149.32322330470336, -9.176776695296637], [149.25, -9.146446609406727], [149.0, -9.25], [148.75, -9.146446609406727], [148.5, -9.25], [147.96966991411009, -9.030330085889911], [147.75, -8.5], [147.85355339059328, -8.25], [147.82322330470336, -8.176776695296637], [147.46966991411009, -8.030330085889911], [147.25, -7.5], [147.35355339059328, -7.25]]]}, "2021-05-25T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[147.35355339059328, -7.25], [147.25, -7.0], [147.46966991411009, -6.4696699141100895], [148.0, -6.25], [148.25, -6.353553390593273], [148.5, -6.25], [148.75, -6.353553390593273], [149.0, -6.25], [149.25, -6.353553390593273], [149.5, -6.25], [150.03033008588991, -6.4696699141100895], [150.17677669529664, -6.8232233047033635], [150.25, -6.853553390593273], [150.5, -6.75], [151.03033008588991, -6.9696699141100895], [151.25, -7.5], [151.14644660940672, -7.75], [151.17677669529664, -7.8232233047033635], [151.53033008588991, -7.9696699141100895], [151.67677669529664, -8.323223304703363], [152.03033008588991, -8.469669914110089], [152.25, -9.0], [152.14644660940672, -9.25], [152.25, -9.5], [152.14644660940672, -9.75], [152.25, -10.0], [152.14644660940672, -10.25], [152.25, -10.5], [152.14644660940672, -10.75], [152.25, -11.0], [152.03033008588991, -11.530330085889911], [151.5, -11.75], [151.25, -11.646446609406727], [151.0, -11.75], [150.75, -11.646446609406727], [150.5, -11.75], [149.96966991411009, -11.530330085889911], [149.75, -11.0], [149.96966991411009, -10.469669914110089], [150.32322330470336, -10.323223304703363], [150.375, -10.198223304703363], [149.96966991411009, -10.030330085889911], [149.82322330470336, -9.676776695296637], [149.46966991411009, -9.530330085889911], [149.32322330470336, -9.176776695296637], [149.25, -9.146446609406727], [149.0, -9.25], [148.75, -9.146446609406727], [148.5, -9.25], [147.96966991411009, -9.030330085889911], [147.75, -8.5], [147.85355339059328, -8.25], [147.82322330470336, -8.176776695296637], [147.46966991411009, -8.030330085889911], [147.25, -7.5], [147.35355339059328, -7.25]]]}, "2021-05-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[147.35355339059328, -7.25], [147.25, -7.0], [147.46966991411009, -6.4696699141100895], [148.0, -6.25], [148.25, -6.353553390593273], [148.32322330470336, -6.3232233047033635], [148.46966991411009, -5.9696699141100895], [149.0, -5.75], [149.25, -5.853553390593273], [149.5, -5.75], [150.03033008588991, -5.9696699141100895], [150.17677669529664, -6.3232233047033635], [150.53033008588991, -6.4696699141100895], [150.67677669529664, -6.8232233047033635], [151.03033008588991, -6.9696699141100895], [151.25, -7.5], [151.14644660940672, -7.75], [151.17677669529664, -7.8232233047033635], [151.53033008588991, -7.9696699141100895], [151.67677669529664, -8.323223304703363], [152.03033008588991, -8.469669914110089], [152.25, -9.0], [152.14644660940672, -9.25], [152.25, -9.5], [152.14644660940672, -9.75], [152.25, -10.0], [152.14644660940672, -10.25], [152.25, -10.5], [152.03033008588991, -11.030330085889911], [151.5, -11.25], [151.25, -11.146446609406727], [151.0, -11.25], [150.46966991411009, -11.030330085889911], [150.25, -10.5], [150.45710678118655, -10.0], [150.32322330470336, -9.676776695296637], [150.25, -9.646446609406727], [150.0, -9.75], [149.46966991411009, -9.530330085889911], [149.32322330470336, -9.176776695296637], [149.25, -9.146446609406727], [149.0, -9.25], [148.75, -9.146446609406727], [148.5, -9.25], [147.96966991411009, -9.030330085889911], [147.75, -8.5], [147.85355339059328, -8.25], [147.82322330470336, -8.176776695296637], [147.46966991411009, -8.030330085889911], [147.25, -7.5], [147.35355339059328, -7.25]]]}, "2021-05-27T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[147.82322330470336, -7.6767766952966365], [147.46966991411009, -7.5303300858899105], [147.25, -7.0], [147.46966991411009, -6.4696699141100895], [148.0, -6.25], [148.25, -6.353553390593273], [148.32322330470336, -6.3232233047033635], [148.46966991411009, -5.9696699141100895], [149.0, -5.75], [149.25, -5.853553390593273], [149.5, -5.75], [150.03033008588991, -5.9696699141100895], [150.17677669529664, -6.3232233047033635], [150.53033008588991, -6.4696699141100895], [150.67677669529664, -6.8232233047033635], [151.03033008588991, -6.9696699141100895], [151.25, -7.5], [151.14644660940672, -7.75], [151.25, -8.0], [151.03033008588991, -8.530330085889911], [150.67677669529664, -8.676776695296637], [150.53033008588991, -9.030330085889911], [150.0, -9.25], [149.75, -9.146446609406727], [149.5, -9.25], [149.25, -9.146446609406727], [149.0, -9.25], [148.75, -9.146446609406727], [148.5, -9.25], [147.96966991411009, -9.030330085889911], [147.75, -8.5], [147.85355339059328, -8.25], [147.75, -8.0], [147.85355339059328, -7.75], [147.82322330470336, -7.6767766952966365]]]}, "2021-05-28T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[147.85355339059328, -7.75], [147.75, -7.5], [147.85355339059328, -7.25], [147.75, -7.0], [147.96966991411009, -6.4696699141100895], [148.32322330470336, -6.3232233047033635], [148.46966991411009, -5.9696699141100895], [149.0, -5.75], [149.25, -5.853553390593273], [149.5, -5.75], [150.03033008588991, -5.9696699141100895], [150.17677669529664, -6.3232233047033635], [150.53033008588991, -6.4696699141100895], [150.67677669529664, -6.8232233047033635], [151.03033008588991, -6.9696699141100895], [151.25, -7.5], [151.14644660940672, -7.75], [151.25, -8.0], [151.03033008588991, -8.530330085889911], [150.5, -8.75], [150.25, -8.646446609406727], [150.0, -8.75], [149.75, -8.646446609406727], [149.5, -8.75], [149.25, -8.646446609406727], [149.0, -8.75], [148.75, -8.646446609406727], [148.5, -8.75], [147.96966991411009, -8.530330085889911], [147.75, -8.0], [147.85355339059328, -7.75]]]}, "2021-05-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[147.85355339059328, -7.75], [147.75, -7.5], [147.85355339059328, -7.25], [147.75, -7.0], [147.96966991411009, -6.4696699141100895], [148.32322330470336, -6.3232233047033635], [148.46966991411009, -5.9696699141100895], [149.0, -5.75], [149.25, -5.853553390593273], [149.5, -5.75], [150.03033008588991, -5.9696699141100895], [150.17677669529664, -6.3232233047033635], [150.53033008588991, -6.4696699141100895], [150.75, -7.0], [150.53033008588991, -7.5303300858899105], [150.0, -7.75], [149.75, -7.646446609406727], [149.67677669529664, -7.6767766952966365], [149.53033008588991, -8.030330085889911], [149.17677669529664, -8.176776695296637], [149.03033008588991, -8.530330085889911], [148.5, -8.75], [147.96966991411009, -8.530330085889911], [147.75, -8.0], [147.85355339059328, -7.75]]]}, "2021-05-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[147.85355339059328, -7.75], [147.75, -7.5], [147.85355339059328, -7.25], [147.75, -7.0], [147.96966991411009, -6.4696699141100895], [148.5, -6.25], [149.03033008588991, -6.4696699141100895], [149.17677669529664, -6.8232233047033635], [149.53033008588991, -6.9696699141100895], [149.75, -7.5], [149.54289321881345, -8.0], [149.75, -8.5], [149.53033008588991, -9.030330085889911], [149.0, -9.25], [148.46966991411009, -9.030330085889911], [148.32322330470336, -8.676776695296637], [147.96966991411009, -8.530330085889911], [147.75, -8.0], [147.85355339059328, -7.75]]]}, "2021-05-31T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[148.25, -8.5], [148.46966991411009, -7.9696699141100895], [149.0, -7.75], [149.53033008588991, -7.9696699141100895], [149.75, -8.5], [149.53033008588991, -9.030330085889911], [149.0, -9.25], [148.46966991411009, -9.030330085889911], [148.25, -8.5]]]}, "2021-06-01T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[148.25, -8.5], [148.46966991411009, -7.9696699141100895], [149.0, -7.75], [149.53033008588991, -7.9696699141100895], [149.75, -8.5], [149.53033008588991, -9.030330085889911], [149.0, -9.25], [148.46966991411009, -9.030330085889911], [148.25, -8.5]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.630865767709281}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.08295464084024}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.06814335012433, 27.689694373849477, 27.800265905049116, 27.613848687715972, 27.77266405662425, 27.87330448743387, 27.677492118496616, 27.714120060319374, 27.81066371175018, 27.640624556186992, 27.762075632725043]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.225998639813895, 28.137983067834227, 28.298071843364426, 28.234838783155055, 28.28820170833177, 28.160210932907887, 27.79060246168376, 27.934241012159532, 27.936407627166716, 27.640624556186992, 27.762075632725043]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7427396348729, 1.0951558164532313, 1.1726182608180657, 1.008602324329903, 1.0935310433856653, 1.1618220758544102, 1.0217485304408491, 1.1256933211342104, 1.154555657456865, 0.8044906527827038, 0.9347692446639826]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8437413161619816, 1.369810426444758, 1.5497194384008708, 1.4403844224893305, 1.630865767709281, 1.4319453170647876, 1.1627502807285168, 1.3855421058246975, 1.283554624813803, 0.8044906527827038, 0.9347692446639826]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5432804524784534, 2.131483896698899, 2.1985836159167613, 1.81923468467716, 1.8891429681003111, 1.9426973861005892, 1.6842005180409987, 1.907676726117053, 1.967025341793019, 1.4531326719984674, 1.7459746035989718]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7442638117284435, 2.7519610484885915, 2.8297102189185357, 2.4488994656500784, 2.674273946915747, 2.3488502361548194, 1.9799361077514688, 2.345361052540514, 2.2087399203437688, 1.4531326719984674, 1.7459746035989718]}}