{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:31:08Z","timestamp":1760239868157,"version":"build-2065373602"},"reference-count":15,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2019,1,4]],"date-time":"2019-01-04T00:00:00Z","timestamp":1546560000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100007532","name":"National Space Organization","doi-asserted-by":"publisher","award":["NSPO-S-106118"],"award-info":[{"award-number":["NSPO-S-106118"]}],"id":[{"id":"10.13039\/501100007532","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004663","name":"Ministry of Science and Technology, Taiwan","doi-asserted-by":"publisher","award":["MOST 107-2111-M-003-002"],"award-info":[{"award-number":["MOST 107-2111-M-003-002"]}],"id":[{"id":"10.13039\/501100004663","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper estimates marine boundary layer height (MBLH) over the western North Pacific (WNP) based on Global Positioning System Radio Occultation (GPS-RO) profiles from the Formosa Satellite Mission 3 (FORMOSAT-3)\/Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) satellites, island soundings, and numerical models. The seasonally-averaged MBLHs computed from nine years (2007\u20132015) of GPS-RO data are inter-compared with those obtained from sounding observations at 15 island stations and from the European Centre for Medium-Range Weather Forecasts (ECMWF) Reanalysis (ERA-Interim) and National Centers for Environmental Prediction Global Forecast System (NCEP GFS) data over the WNP from 2012 to 2015. It is found that the MBLH using nine years of GPS-RO data is smoother and more consistent with that obtained from sounding observations than is the MBLH using four years of GPS-RO data in a previous study. In winter, higher MBLHs are found around the subtropical latitudes and over oceans east of Japan, which are approximately located within the paths of the North Equatorial Current and the Kuroshio Current. The MBLH is also significantly higher in winter than in summer over the WNP. The above MBLH pattern is generally similar to those obtained from the analysis data of the ERA-Interim and NCEP GFS, but the heights are about 200 m higher. The verification with soundings suggests that the ERA-Interim has a better MBLH estimation than the NCEP GFS. Thus, the MBLH distributions obtained from both the nine-year GPS-RO and the ERA-Interim data can represent well the climatological MBLH over the WNP, but the heights should be adjusted about 30 m lower for the former and ~200 m higher for the latter. A positive correlation between the MBLH and the instability of the lower atmosphere exists over large near-shore areas of the WNP, where cold air can move over warm oceans from the land in winter, resulting in an increase in lower-atmospheric instability and providing favorable conditions for convection to yield a higher MBLH. During summer, the lower-atmospheric instability becomes smaller and the MBLH is thus lower over near-shore oceans.<\/jats:p>","DOI":"10.3390\/s19010155","type":"journal-article","created":{"date-parts":[[2019,1,4]],"date-time":"2019-01-04T11:34:26Z","timestamp":1546601666000},"page":"155","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["The Marine Boundary Layer Height over the Western North Pacific Based on GPS Radio Occultation, Island Soundings, and Numerical Models"],"prefix":"10.3390","volume":"19","author":[{"given":"Fang-Ching","family":"Chien","sequence":"first","affiliation":[{"name":"Department of Earth Sciences, National Taiwan Normal University, No. 88, Section 4, Ting-Chou Road, Taipei 11677, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing-Shan","family":"Hong","sequence":"additional","affiliation":[{"name":"Central Weather Bureau, Taipei 10048, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ying-Hwa","family":"Kuo","sequence":"additional","affiliation":[{"name":"UCAR Community Programs, University Corporation for Atmospheric Research, Boulder, CO 80301, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,1,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"369","DOI":"10.1175\/1520-0442(1998)011<0369:LCTOTO>2.0.CO;2","article-title":"Low cloud type over the ocean from surface observations. Part I: Relationship to surface meteorology and the vertical distribution of temperature and moisture","volume":"11","author":"Norris","year":"1998","journal-title":"J. Clim."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2373","DOI":"10.1175\/MWR-D-11-00121.1","article-title":"Stratocumulus clouds","volume":"140","author":"Wood","year":"2012","journal-title":"Mon. Weather Rev."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"L12813","DOI":"10.1029\/2006GL025955","article-title":"Monitoring the atmospheric boundary layer by GPS radio occultation signals recorded in the open-loop mode","volume":"33","author":"Sokolovskiy","year":"2006","journal-title":"Geophys. Res. Lett."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"L18802","DOI":"10.1029\/2007GL030458","article-title":"Observing the moist troposphere with radio occultation signals from COSMIC","volume":"34","author":"Sokolovskiy","year":"2007","journal-title":"Geophys. Res. Lett."},{"key":"ref_5","first-page":"D16101","article-title":"Identification of atmospheric boundary layer height over a tropical station using high-resolution radiosonde refractivity profiles: Comparison with GPS radio occultation measurements","volume":"114","author":"Basha","year":"2009","journal-title":"J. Geophys. Res."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1703","DOI":"10.1175\/2011JAS3612.1","article-title":"Estimating atmospheric boundary layer depth using COSMIC radio occultation data","volume":"68","author":"Guo","year":"2011","journal-title":"J. Atmos. Sci."},{"key":"ref_7","first-page":"D16117","article-title":"Planetary boundary layer heights from GPS radio occultation refractivity and humidity profiles","volume":"117","author":"Ao","year":"2012","journal-title":"J. Geophys. Res."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"903","DOI":"10.5194\/acp-12-903-2012","article-title":"Advances and limitations of atmospheric boundary layer observations with GPS occultation over southeast Pacific Ocean","volume":"12","author":"Xie","year":"2012","journal-title":"Atmos. Chem. Phys."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2856","DOI":"10.1175\/JCLI-D-14-00238.1","article-title":"Marine boundary layer heights and their longitudinal, diurnal, and interseasonal variability in the Southeastern Pacific using COSMIC, CALIOP, and radiosonde data","volume":"28","author":"Ho","year":"2015","journal-title":"J. Clim."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"23429","DOI":"10.1029\/97JD01569","article-title":"Observing Earth\u2019s atmosphere with radio occultation measurements using the Global Positioning System","volume":"102","author":"Kursinski","year":"1997","journal-title":"J. Geophys. Res."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"302","DOI":"10.2151\/sola.2016-059","article-title":"Estimation of marine boundary layer heights over the western North Pacific using GPS radio occultation profiles","volume":"12","author":"Chien","year":"2016","journal-title":"SOLA"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1175\/WAF-D-15-0085.1","article-title":"An impact study of GPS Radio Occultation observations on frontal rainfall prediction with a local bending angle operator","volume":"31","author":"Huang","year":"2016","journal-title":"Weather Forecast."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1016\/S0146-664X(78)80032-X","article-title":"A piecewise c1 interpolant to arbitrarily spaced data","volume":"8","author":"Klucewicz","year":"1978","journal-title":"Comput. Gr. Image Process."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Qiu, B. (2001). Kuroshio and Oyashio currents. Encyclopedia of Ocean Sciences, Academic Press.","DOI":"10.1016\/B978-012374473-9.00350-7"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"362","DOI":"10.1016\/j.atmosres.2016.08.005","article-title":"Estimation of the marine boundary layer height over the central North Pacific using GPS radio occultation","volume":"183","author":"Winning","year":"2017","journal-title":"Atmos. 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