Results 21 to 30 of about 2,451 (297)

Probing the Atmospheric Precipitable Water Vapor with SOFIA, Part I, Measurements of the Water Vapor Overburden with FIFI-LS [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2021
Abstract We report on the measurements of telluric water vapor made with the instrument FIFI-LS on SOFIA. Since November 2018, FIFI-LS has measured the water vapor overburden with the same measurement setup on each science flight with about 10 data points throughout the flight. This created a large sample of 469 measurements at different
C. Fischer   +6 more
openaire   +2 more sources

CONSTRUCTION OF REGIONAL WEIGHTED MEAN TEMPERATURE MODEL BASED ON OPTIMIZATION BP NEURAL NETWORK [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The tropospheric weighted mean temperature (Tm) is one of the key characteristic parameters in the troposphere, which plays an important role in the conversion of Zenith Wet Delay (ZWD) to atmospheric Precipitable Water Vapor (PWV).
Z. X. Chen   +10 more
doaj   +1 more source

Forecasting Precipitable Water Vapor Using LSTMs [PDF]

open access: yes2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium), 2020
Long-Short-Term-Memory (LSTM) networks have been used extensively for time series forecasting in recent years due to their ability of learning patterns over different periods of time. In this paper, this ability is applied to learning the pattern of Global Positioning System (GPS)-based Precipitable Water Vapor (PWV) measurements over a period of 4 ...
Jain, Mayank   +4 more
openaire   +2 more sources

Calibration of Raman lidar water vapor profiles by means of AERONET photometer observations and GDAS meteorological data [PDF]

open access: yesAtmospheric Measurement Techniques, 2018
We present a practical method to continuously calibrate Raman lidar observations of water vapor mixing ratio profiles. The water vapor profile measured with the multiwavelength polarization Raman lidar PollyXT is calibrated by means of co-located ...
G. Dai   +10 more
doaj   +1 more source

Deep-learning-based prediction of precipitable water vapor in the Chajnantor area

open access: yesAstronomy & Astrophysics
Context. Astronomical observations at millimeter and submillimeter wavelengths strongly depend on the amount of precipitable water vapor (PWV) in the atmosphere, which directly affects the sky transparency and decreases the signal-to-noise ratio of the ...
Matus-Bello Alison   +9 more
doaj   +3 more sources

Observed HIRS and Aqua MODIS Thermal Infrared Moisture Determinations in the 2000s

open access: yesRemote Sensing, 2021
This paper compares the tropospheric moisture data records derived from High-resolution Infrared Radiation Sounder (HIRS) and Moderate Resolution Imaging Spectro-radiometer (MODIS) measurements from the years 2003 through 2013.
Eva E. Borbas, Paul W. Menzel
doaj   +1 more source

A Novel Global Grid Model for Atmospheric Weighted Mean Temperature in Real-Time GNSS Precipitable Water Vapor Sounding

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The atmospheric weighted mean temperature (Tm) is an important parameter in calculating the precipitable water vapor from Global Navigation Satellite System (GNSS) signals. As both GNSS positioning and GNSS precipitable water vapor detection require high
Liangke Huang   +7 more
doaj   +1 more source

A New Typhoon-Monitoring Method Using Precipitation Water Vapor [PDF]

open access: yesRemote Sensing, 2019
Some seasonal natural floods can be attributed to typhoons that bring a large amount of atmospheric water vapor, and variations in atmospheric water vapor can be reflected in the precipitable water vapor (PWV). Therefore, monitoring typhoons based on the anomalous variations of the PWV is the focus of this paper.
Qingzhi Zhao   +3 more
openaire   +1 more source

Assessment of the potential of MERIS near-infrared water vapour products to correct ASAR interferometric measurements [PDF]

open access: yes, 2006
Atmospheric water vapour is a major limitation for high precision Interferometric Synthetic Aperture Radar (InSAR) applications due to its significant impact on microwave signals.
Li, Z.   +5 more
core   +1 more source

Spatial-temporal characteristics and changes of atmospheric water vapor in the Three River Headwaters Region

open access: yesShui kexue jinzhan, 2019
The spatial-temporal characteristics of precipitable water vapor and water-vapor flux as well as precipitation conversion efficiency in the Three River Headwaters Region were discussed through correlation analysis,trend analysis,accumulative anomaly and ...
QIANG Anfeng   +3 more
doaj   +1 more source

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