Results 21 to 30 of about 6,317 (256)

A global coupled Eulerian-Lagrangian model and 1 × 1 km CO2 surface flux dataset for high-resolution atmospheric CO2 transport simulations [PDF]

, 2012
We designed a method to simulate atmospheric CO2 concentrations at several continuous observation sites around the globe using surface fluxes at a very high spatial resolution.
Lukyanov, A, M. Rigby, Nisbet, Euan, Maksyutov, S., Tsuboi, K, Lowry, David, A. Lukyanov, Matsueda, H, A. Varlagin, Andres, R. J., Fisher, R. E., Nisbet, E., Sawa, Y., V. Valsala, Saito, M, Nisbet, EG, Lukyanov, A., Varlagin, A, Nisbet, E. G., Oda, T, T. Oda, Maksyutov, S, Valsala, V, Andres, R.J., Varlagin, A., R. Toumi, H. Matsueda, R. Zhuravlev, Fisher, R., Toumi, R, Oda, T., Fisher, RE, Ganshin, A., Sawa, Y, Toumi, R., E. G. Nisbet, Lowry, D, Andres, R., Tsuboi, K., R. E. Fisher, R. J. Andres, Rigby, M, Rigby, M., S. Maksyutov, A. Ganshin, M. Saito, Lowry, D., Zhuravlev, R, D. Lowry, K. Tsuboi, Fisher, Rebecca, Matsueda, H., Y. Sawa, Valsala, V., Zhuravlev, R., Ganshin, A, Saito, M., Andres, RJ   +57 more
core   +1 more source

A Shallow-water Model Exploration of Atmospheric Circulation on Sub-Neptunes: Effects of Radiative Forcing and Rotation Period

The Planetary Science Journal, 2023
Sub-Neptune-type exoplanets are abundant in our Galaxy yet have no solar system analogs. They exist in a broad range of stellar forcing and rotational regimes that are distinctly different from solar system planets and more commonly studied hot Jupiters.
Ekaterina Landgren, Alice Nadeau, Nikole Lewis, Tiffany Kataria, Peter Hitchcock   +4 more
doaj   +1 more source

Forecast Assessment of CMA-GFS on the Meteorological Elements in the Northeast Hemisphere

Gaoyuan qixiang, 2023
Based on the daily forecast data initialized at 20:00 （Beijing time） of the CMA global forecast system （CMA-GFS） during the period from October， 2019 to December， 2020， the forecasting quality of the upper air meteorological elements in the Northeast ...
Chunjuan QI, Liujie PAN
doaj   +1 more source

ANALYSIS OF ISOSTATICALLY-BALANCED CORTICAL MODELS USING MODERN GLOBAL GEOPOTENTIAL MODELS [PDF]

Boletim de Ciências Geodésicas, 2017
Abstract: The knowledge of the Earth's gravity field and its temporal variations is the main goal of the dedicated gravity field missions CHAMP, GRACE and GOCE. Since then, several global geopotential models (GGMs) have been released. This paper uses geoid heights derived from global geopotential models to analyze the cortical features of the Tandilia ...
Claudia Infante, Cláudia Tocho, D. Del Cogliano   +2 more
openaire   +3 more sources

Spectrally Consistent Mean Dynamic Topography by Combining Mean Sea Surface and Global Geopotential Model Through a Least Squares-Based Approach

Frontiers in Earth Science, 2022
The filtering procedure is usually mandatory for modeling mean dynamic topography (MDT) when a geodetic approach based on the Mean Sea Surface (MSS) and the Global Geopotential Model (GGM) is used.
Hongkai Shi, Hongkai Shi, Xiufeng He, Yihao Wu, Ole Baltazar Andersen, Per Knudsen, Yanxiong Liu, Zhetao Zhang   +7 more
doaj   +1 more source

Research on gravity field modelling and gravimetry in Poland in 2015–2018 [PDF]

Geodesy and Cartography, 2019
Activities of the Polish research gSDroups concerning gravity field modelling and gravimetry in a period of 2015–2018 are reviewed and summarised in this paper.
Jan Krynski, Przemyslaw Dykowski, Tomasz Olszak   +2 more
doaj   +1 more source

Computing the Deflection of the Vertical for Improving Aerial Surveys: A Comparison between EGM2008 and ITALGEO05 Estimates

Sensors, 2016
Recent studies on the influence of the anomalous gravity field in GNSS/INS applications have shown that neglecting the impact of the deflection of vertical in aerial surveys induces horizontal and vertical errors in the measurement of an object that is ...
Riccardo Barzaghi, Daniela Carrion, Massimiliano Pepe, Giuseppina Prezioso   +3 more
doaj   +1 more source

A High-Resolution Gravimetric Geoid Model for Kuwait Using the Least-Squares Collocation

Frontiers in Earth Science, 2022
A new gravimetric geoid model, the KW-FLGM2021, is developed for Kuwait in this study. This new geoid model is driven by a combination of the XGM2019e-combined global geopotential model (GGM), terrestrial gravity, and the SRTM 3 global digital elevation ...
Hamad Al-Ajami, Hamad Al-Ajami, Ahmed Zaki, Mostafa Rabah, Mohamed El-Ashquer   +4 more
doaj   +1 more source

Global Geopotential Model Evaluations and Local Geoid in Indonesia: A Review

IOP Conference Series: Earth and Environmental Science, 2021
Abstract Geoid model was chosen as a vertical reference in Indonesia based on the Head of the Geospatial Information Agency Regulation (Perka BIG) No. 15 of 2013 concerning the Indonesian Geospatial Reference System (SRGI2013). Therefore, the development of local geoid models continues to be carried out to obtain good accuracy. The geoid
Hamidatul Aminah, Ira Mutiara Anjasmara
openaire   +1 more source

Compilation of the regional quasigeoid model for New Zealand using the discretised integral-equation approach

Journal of Geodetic Science, 2012
We evaluate the new regional quasigeoid model (OTG12) for New Zealand using the method which utilises the discretised integral equation approach for computing the near-zone contribution.
Abdalla A., Tenzer R.
doaj   +1 more source