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Retrieving Precipitable Water Vapor Data Using GPS Zenith Delays and Global Reanalysis Data in China
2016
Remote Sensing
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However, GPS PWV derivation requires surface pressure to calculate the precise zenith hydrostatic delay and weighted mean temperature to map the zenith wet delay to precipitable water vapor. ...
GPS stations without collocated meteorological sensors can retrieve water vapor using standard atmosphere parameters, which lead to a decrease in accuracy. ...
GPS precipitable water vapor products from limited GPS stations that equipped meteorological sensors. ...
doi:10.3390/rs8050389
fatcat:53kpus2r3rgf7d6dxqjwzdvemm
GNSS precipitable water vapor retrieval with the aid of NWM data for China
2021
Earth and Space Science
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Water vapor is a critical component of the Earth's atmosphere, which plays an important role in atmospheric radiation, energy transport, cloud formation, and precipitation (J. Wang et al., 2007) . ...
The accurate estimation of water vapor directly affects the accuracy of precipitation forecasting in numerical weather prediction ( ...
Forecasts (ECMWF) for providing ERA5 reanalysis data, and the Crustal Movement Observation Network of China (CMONOC). ...
doi:10.1029/2020ea001550
fatcat:kpsa7czykjevvjwutwfzlccdfu
Real-Time Sensing of Precipitable Water Vapor From BeiDou Observations: Hong Kong and CMONOC Networks
2018
Journal of Geophysical Research - Atmospheres
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The development of BeiDou Navigation Satellite System (BDS) provides opportunities for real-time retrieval of precipitable water vapor (PWV), which is expected to significantly contribute to time-critical ...
In this study, observations from 17 stations of the Hong Kong Continuously Operating Reference Stations and 15 stations of the Crustal Movement Observation Network of China (CMONOC) are used to retrieve ...
Acknowledgments We acknowledge IGS, MGEX, and BETN for providing the GPS and BDS data. The data are available at ftp://cddis.gsfc. nasa.gov/gnss/data/campaign/mgex/. ...
doi:10.1029/2018jd028320
fatcat:roi5ew3llfhqnei6yljxf4yt3u
Precipitable Water Vapor Retrieval and Analysis by Multiple Data Sources: Ground-Based GNSS, Radio Occultation, Radiosonde, Microwave Satellite, and NWP Reanalysis Data
2018
Journal of Sensors
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So, in our study, we get the retrieved atmospheric profiles from GPS and Beidou radio occultation observations and derive atmosphere PWV by a variational retrieval method based on these data over a global ...
, different-level pressures, and precipitable water. ...
Acknowledgments This research was funded by Chang'an University (Xi'an, China) through the Natural Science Foundation of China (NSFC) projects (nos. 41731066, 41790445, 41604001, 41674001) and a Special ...
doi:10.1155/2018/3428303
fatcat:csn4hnz7rjbmxangz4cnthfhye
Geostationary Satellite Observation of Precipitable Water Vapor Using an Empirical Orthogonal Function (EOF) based Reconstruction Technique over Eastern China
2015
Remote Sensing
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GPS meteorology data were used to validate the retrieval and the reconstructed results. ...
Our study derived the vertically integrated precipitable water vapor over eastern China using Multi-functional Transport Satellite (MTSAT) data, which is in geostationary orbit with high temporal resolution ...
Hourly Air Temperature Data Gridded air temperature data were used as ancillary data for water vapor retrieval. ...
doi:10.3390/rs70505879
fatcat:lxwa3t5l4nhcpafwxxr6thimma
A Global Assessment of Precipitable Water Vapor Derived from GNSS Zenith Tropospheric Delays with ERA5, NCEP FNL, and NCEP GFS Products
2021
Earth and Space Science
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Acknowledgments This work was supported by the National Natural Science Foundation of China (grant no. 41904032), the Natural Science Foundation of Hunan Province, China (grant no. 2019JJ50764), the ...
GNSS-derived PWV has been presently applied in broad fields, including Abstract In precipitable water vapor (PWV) retrievals from Global Navigation Satellite System (GNSS) data, the two essential parameters ...
In this study, we perform a global assessment of the PWV retrievals from GNSS ZTD data using s P and m T generated by ERA5 reanalysis, NCEP FNL analysis, and NCEP GFS forecast. ...
doi:10.1029/2021ea001796
fatcat:a2dghrncqjaj7j2hwks2eyowta
Validation of MODIS Terra, AIRS, NCEP/DOE AMIP-II Reanalysis-2, and AERONET Sun photometer derived integrated precipitable water vapor using ground-based GPS receivers over India
2009
Journal of Geophysical Research
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2009), Validation of MODIS Terra, AIRS, NCEP/DOE AMIP-II Reanalysis-2, and AERONET Sun photometer derived integrated precipitable water vapor using ground-based GPS receivers over India, [1] Water vapor ...
Singh (2009), Validation of MODIS Terra, AIRS, NCEP/DOE AMIP-II Reanalysis-2, and AERONET Sun photometer derived integrated precipitable water vapor using ground-based GPS receivers over India, ...
vapor products and GPS and satellite orbit data and to NOAA/OAR/ESRL PSD, Boulder, Colorado, for providing NCEP-DOE AMIP Reanalysis-2 data (http://www.cdc.noaa.gov/). ...
doi:10.1029/2008jd011230
fatcat:a3x4pgnhlzhtnc4wiltqyhgyhi
Variability and Climatology of PWV From Global 13-Year GPS Observations
2009
IEEE Transactions on Geoscience and Remote Sensing
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In this paper, 13-year 2-h precipitable water vapors (PWV) are derived from globally distributed 155 Global Positioning System sites observations and global three-hourly surface weather data and six-hourly ...
Water vapor plays the key role in the global hydrologic cycle and climate change. ...
ACKNOWLEDGMENT The authors would like to thank three reviewers for constructive comments and useful suggestions to improve the manuscript as well as IGS for providing highly precise GPS observations data ...
doi:10.1109/tgrs.2008.2010401
fatcat:qfc7z4vvffh2nmdjfvm3birgau
Spatio-Temporal Variations of Precipitable Water Vapor and Horizontal Tropospheric Gradients from GPS during Typhoon Lekima
2021
Remote Sensing
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A refined regional Tm model was used to derive the precipitable water vapor (PWV) at these GPS stations. Spatio-temporal variations of PWV with the typhoon process were analyzed. ...
Comparisons of GPS, radiosonde, the Global Data Assimilation System (GDAS) Global Forecast System (GFS) analysis products and ERA5 reanalysis products at four matched GPS-RS stations show overall overestimations ...
Acknowledgments: We acknowledge the CMA providing GPS data, IGRA for providing radiosonde data, ECMWF for providing ERA5 data, and NOAA for providing GFS data. ...
doi:10.3390/rs13204082
fatcat:mmhuovilwre3zbwvezcu4wjcua
Validation of Atmospheric Water Vapor Derived from Ship-Borne GPS Measurements in the Chinese Bohai Sea
2016
Terrestrial, Atmospheric and Oceanic Sciences
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Atmospheric water vapor (AWV) was investigated for the first time in the Chinese Bohai Sea using a Global Positioning System (GPS) receiver aboard a lightweight (300-ton) ship. ...
The GPS-derived precipitable water vapor (PWV) and slant-path water vapor (SWV) were assessed by comparing with those derived from the Fifth Generation NCAR/Penn State Mesoscale Model (MM5). ...
Acknowledgments We are thankful for funding from the China Scholarship Council. This study was supported by the National Natural Science Foundation of China (grant no. ...
doi:10.3319/tao.2015.11.04.01(a)
fatcat:cv4zxfipivhn7p2uzfxpwau2ay
Research progress and prospect of monitoring tropospheric water vapor by GNSS technique
2022
Acta Geodaetica et Cartographica Sinica
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In terms of GNSS water vapor monitoring, the current research mainly focuses on two-dimensional precipitable water vapor monitoring and three-dimensional wet refractive index or water vapor density profile ...
With the rapid development of GNSS (global navigation satellite system), GNSS water vapor monitoring has become one of the most important research and application directions. ...
Impact of GPS zenith tropospheric delay data on precipitation forecasts in Mediterranean France and Spain[J]. ...
doi:10.11947/j.agcs.2022.20220039
doaj:41a32d9bfb634cbc9e390e454df20c3f
fatcat:zbnead7u3rar5chdbggl2ifdq4
Integrated Water Vapor Field and Multiscale Variations over China from GPS Measurements
2008
Journal of Applied Meteorology and Climatology
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In this paper, continuous global positioning system (GPS) observations for 2004-07 in China are used to produce precipitable water vapor (PWV) measurements; these measurements constitute the first investigation ...
Water vapor plays a key role in the global hydrologic cycle and in climatic change. ...
The authors acknowledge the use of GPS data that were retrieved from the Crustal Movement Observation Network of China (CMONC). ...
doi:10.1175/2008jamc1920.1
fatcat:hmk64rphezag5j3hibij7svjoa
Establishment of a regional precipitable water vapor model based on the combination of GNSS and ECMWF data
2018
Atmospheric Measurement Techniques Discussions
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Many techniques are used for measuring the water vapor in the atmosphere such as radiosondes, Global Navigation Satellite System (GNSS) and water vapor radiometer (WVR). ...
In addition, the method that uses European Centre for Medium-range Weather Forecasts (ECMWF) data is an important method for studying the variations in precipitable water vapor (PWV). ...
Subsequently, the 107 precipitable water vapor can be calculated from the Zenith wet delay (ZWD) and dimensionless proportional constant . ...
doi:10.5194/amt-2018-227
fatcat:62iayhpnazhrfjlnisufmt3vxa
Multi-Year Variations in Atmospheric Water Vapor in the Baikal Natural Territory According to GPS Observations
2022
Atmosphere
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The average deviation of the difference in total moisture content data during 2020 in the form of precipitable water according to GPS and WVR observations was about 0.12 mm, or about 1.1% relative to the ...
measurements with a water vapor radiometer (WVR) during 2020. ...
Moisture data from radiosondes are retrieved from the University of Wyoming website. Water vapor levels are provided in the form of precipitable water. ...
doi:10.3390/atmos13020258
fatcat:bjell7jypva6hbi7wfwsw4pvce
Evaluation of Hourly PWV Products Derived from ERA5 and MERRA‐2 over the Tibetan Plateau Using Ground‐Based GNSS Observations by Two Enhanced Models
2021
Earth and Space Science
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As one of the most commonly used parameters to express the amount of water vapor in the atmosphere and a crucial parameter in numerical weather prediction models and climate studies, precipitable water ...
Abstract Precipitable water vapor (PWV), despite being the key factor for assessing climate change over the Tibetan Plateau (TP), is undersampled in this region due to the complex terrain and climate conditions ...
Data Availability Statement The reanalysis data, namely, the ERA5 and MERRA-2 products, are provided by the ECMWF (https://cds. climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels? ...
doi:10.1029/2020ea001516
fatcat:5od5wedsnrbbncu3y2ggdj7xea
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