Short- and long-term prediction of length of day time series using a combination of MCSSA and ARMA

Authors: Shayan Shirafkan, Mohammad Ali Sharifi, Sadegh Modiri, Santiago Belda, Seyed Mohsen Khazraei, Alireza Amiri-Simkooei

Source: Earth, Planets and Space, Vol 77, Iss 1, Pp 1-15 (2025)

Subject Terms: Prediction, Length of day, Singular spectrum analysis, Monte Carlo, ARMA, Least square, Geography. Anthropology. Recreation, Geodesy, QB275-343, Geology, QE1-996.5

File Description: electronic resource

Relation: https://doaj.org/toc/1880-5981

Access URL: https://doaj.org/article/fae9bc186e904c1cb599cae9e2a7f836

Combinatorial Nonnegative Matrix-Tensor Factorization for Hyperspectral Unmixing Using a General $\ell _{q}$ Norm Regularization

Authors: Saeid Gholinejad, Alireza Amiri-Simkooei

Source: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 9533-9548 (2024)

Subject Terms: Abundance sum-to-one constraint (ASC), hyperspectral unmixing (HU), nonnegative matrix factorization (NMF), nonnegative tensor factorization (NTF), sparse regularization, Ocean engineering, TC1501-1800, Geophysics. Cosmic physics, QC801-809

File Description: electronic resource

Relation: https://ieeexplore.ieee.org/document/10506592/; https://doaj.org/toc/1939-1404; https://doaj.org/toc/2151-1535

Access URL: https://doaj.org/article/a00de170383941be949b567ea6f4ca32

Impact of Climate Change Parameters on Groundwater Level: Implications for Two Subsidence Regions in Iran Using Geodetic Observations and Artificial Neural Networks (ANN)

Authors: Saeid Haji-Aghajany, Yazdan Amerian, Alireza Amiri-Simkooei

Source: Remote Sensing, Vol 15, Iss 6, p 1555 (2023)

Subject Terms: ANN, GPS, groundwater resources, InSAR, precipitation, temperature, Science

File Description: electronic resource

Relation: https://www.mdpi.com/2072-4292/15/6/1555; https://doaj.org/toc/2072-4292

Access URL: https://doaj.org/article/304d9cdffdeb499fa45e41cdf10271cd

Multi-GNSS-Weighted Interpolated Tropospheric Delay to Improve Long-Baseline RTK Positioning

Authors: Farinaz Mirmohammadian, Jamal Asgari, Sandra Verhagen, Alireza Amiri-Simkooei

Source: Sensors, Vol 22, Iss 15, p 5570 (2022)

Subject Terms: tropospheric slant delay, tropospheric zenith delay, double-difference, real-time kinematic, weighted least-squares, interpolation, Chemical technology, TP1-1185

File Description: electronic resource

Relation: https://www.mdpi.com/1424-8220/22/15/5570; https://doaj.org/toc/1424-8220

Access URL: https://doaj.org/article/1d017ac5479543509c4c45849c5451d7

Function-Based Troposphere Tomography Technique for Optimal Downscaling of Precipitation

Authors: Saeid Haji-Aghajany, Yazdan Amerian, Alireza Amiri-Simkooei

Source: Remote Sensing, Vol 14, Iss 11, p 2548 (2022)

Subject Terms: precipitation, troposphere tomography, FUNCTION-based, ANN, SDSM, Science

File Description: electronic resource

Relation: https://www.mdpi.com/2072-4292/14/11/2548; https://doaj.org/toc/2072-4292

Access URL: https://doaj.org/article/f09a729f4fbd4a1ea66a554fac20ee82

Improvement of Multi-GNSS Precision and Success Rate Using Realistic Stochastic Model of Observations

Authors: Farinaz Mirmohammadian, Jamal Asgari, Sandra Verhagen, Alireza Amiri-Simkooei

Source: Remote Sensing, Vol 14, Iss 1, p 60 (2021)

Subject Terms: least-squares variance component estimation, double-difference, multi-GNSS observable precision, variance analysis, Science

File Description: electronic resource

Relation: https://www.mdpi.com/2072-4292/14/1/60; https://doaj.org/toc/2072-4292

Access URL: https://doaj.org/article/e6caf2b7b0054411914ec5098123d7e3

Modeling and Prediction of Regular Ionospheric Variations and Deterministic Anomalies

Authors: Mahmoud Rajabi, Alireza Amiri-Simkooei, Hossein Nahavandchi, Vahab Nafisi

Source: Remote Sensing, Vol 12, Iss 6, p 936 (2020)

Subject Terms: ionospheric anomalies, least squares harmonic estimation (ls-he), tec prediction, tec time-series, Science

File Description: electronic resource

Relation: https://www.mdpi.com/2072-4292/12/6/936; https://doaj.org/toc/2072-4292

Access URL: https://doaj.org/article/0b9c2f94b11f4165a2465d980c310993

Seafloor Classification in a Sand Wave Environment on the Dutch Continental Shelf Using Multibeam Echosounder Backscatter Data

Authors: Leo Koop, Alireza Amiri-Simkooei, Karin J. van der Reijden, Sarah O’Flynn, Mirjam Snellen, Dick G. Simons

Source: Geosciences, Vol 9, Iss 3, p 142 (2019)

Subject Terms: seafloor mapping, sediment, benthic habitats, multibeam echosounder, acoustic backscatter, Megaripples, sand waves, marine geology, Geology, QE1-996.5

File Description: electronic resource

Relation: https://www.mdpi.com/2076-3263/9/3/142; https://doaj.org/toc/2076-3263

Access URL: https://doaj.org/article/9b0934294ea4406397a5faada2baccd3

A Multispectral Bayesian Classification Method for Increased Acoustic Discrimination of Seabed Sediments Using Multi-Frequency Multibeam Backscatter Data

Authors: Timo C. Gaida, Tengku Afrizal Tengku Ali, Mirjam Snellen, Alireza Amiri-Simkooei, Thaiënne A. G. P. van Dijk, Dick G. Simons

Source: Geosciences, Vol 8, Iss 12, p 455 (2018)

Subject Terms: multibeam echosounder, underwater acoustics, seafloor mapping, habitats, marine geophysics, multi-frequency, acoustic scattering, unsupervised classification, Geology, QE1-996.5

File Description: electronic resource

Relation: https://www.mdpi.com/2076-3263/8/12/455; https://doaj.org/toc/2076-3263

Access URL: https://doaj.org/article/404909e7f1a14c16996456524f6d2fa0

Impact of Groundtrack Pattern of a Single Pair Mission on the Gravity Recovery Quality

Authors: Siavash Iran-Pour, Matthias Weigelt, Alireza Amiri-Simkooei, Nico Sneeuw

Source: Geosciences, Vol 8, Iss 9, p 315 (2018)

Subject Terms: gravity field recovery, sampling, groundtrack, Geology, QE1-996.5

File Description: electronic resource

Relation: http://www.mdpi.com/2076-3263/8/9/315; https://doaj.org/toc/2076-3263

Access URL: https://doaj.org/article/bd8c5fcf48e04d9ebfac60e349b06774