Results 11 to 20 of about 1,084 (256)

GLOBAL POSITIONING SYSTEM PRECIPITABLE WATER VAPOR INTERPOLATION USING INVERSE MULTIQUADRIC, ARTIFICIAL NEURAL NETWORK AND INVERSE DISTANCE WEIGHTED [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Precipitable water vapor (PWV) is one of the most critical data in many meteorological departments. This component has great spatial and temporal changes, so the global positioning system (GPS) always seeks to increase the accuracy of estimating the ...
S. Chamankar   +2 more
doaj   +1 more source

Satellite imagery and products of the 16–17 February 2020 Saharan Air Layer dust event over the eastern Atlantic: impacts of water vapor on dust detection and morphology [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
On 16–17 February 2020, dust within the Saharan Air Layer (SAL) from western Africa moved over the eastern Atlantic Ocean. Satellite imagery and products from the ABI on GOES-16, VIIRS on NOAA-20, and CALIOP on CALIPSO, along with retrieved values of ...
L. Grasso   +11 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

Precipitation Extremes and Water Vapor

open access: yesCurrent Climate Change Reports, 2022
AbstractPurpose of Review:Review our current understanding of how precipitation is related to its thermodynamic environment, i.e., the water vapor and temperature in the surroundings, and implications for changes in extremes in a warmer climate.Recent Findings:Multiple research threads have i) sought empirical relationships that govern onset of strong ...
J. David Neelin   +7 more
openaire   +1 more source

Analysis and Evaluation of the Layered Precipitable Water Vapor Data from the FENGYUN-4A/AGRI over the Southeastern Tibetan Plateau

open access: yesAtmosphere, 2023
The Layered Precipitable Water Vapor (LPW) product derived from the Advanced Geosynchronous Radiation Imager (AGRI) onboard the first of the Chinese new generation geostationary satellite Fengyun-4A (FY-4A) has great significance for weather forecasting ...
Yunfan Song   +3 more
doaj   +1 more source

GNSS-DERIVED PRECIPITABLE WATER VAPOR MODELING USING MACHINE LEARNING METHODS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Atmospheric water vapor plays a vital role in phenomena related to the global hydrological cycle and climate changes, and its Spatio-temporal modeling and prediction help to identify and predict climatic phenomena.
S. Izanlou   +2 more
doaj   +1 more source

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

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

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

Tracking Hurricanes Using GPS Atmospheric Precipitable Water Vapor Field [PDF]

open access: yes, 2020
AbstractTropical cyclones are one of the most powerful severe weather events that produce devastating socioeconomic and environmental impacts in the areas they strike. Therefore, monitoring and tracking of the arrival times and path of the tropical cyclones are extremely valuable in providing early warning to the public and governments.
Ejigu, Yohannes Getachew   +4 more
openaire   +2 more sources

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