Results 31 to 40 of about 221,330 (163)

On the Impact of Thermal Gradients Across Fluxgate Sensors on In Situ Magnetic Field Measurements

Journal of Geophysical Research: Space Physics, Volume 128, Issue 6, June 2023., 2023
Abstract Fluxgate magnetometers are an important tool for measuring space plasmas. In situ magnetic field investigations often involve measuring small perturbations of a large background field, so robust instrument calibration is critical to accurately resolving geophysical signals.
K. Greene, C. T. Hansen, D. M. Miles
wiley   +1 more source

Disappearance of the Polar Cap Ionosphere During Geomagnetic Storm on 11 May 2019

Space Weather, Volume 20, Issue 6, June 2022., 2022
Abstract Multi‐instrument data from Jang Bogo Station (JBS) in Antarctica were utilized to study ionospheric responses to the 11 May 2019 moderate geomagnetic storm. These include Vertical Incident Pulsed Ionospheric Radar (VIPIR)/Dynasonde, Fabry‐Perot Interferometer (FPI), GPS vertical total electron content (vTEC), and magnetometer.
H.‐J. Kwon, K.‐H. Kim, G. Jee, J. Seon, C. Lee, Y.‐B. Ham, J. Hong, E. Kim, T. Bullett, H.‐U. Auster, W. Magnes, S. Kraft   +11 more
wiley   +1 more source

Are Land‐Use Change Emissions in Southeast Asia Decreasing or Increasing?

Global Biogeochemical Cycles, Volume 36, Issue 1, January 2022., 2022
Abstract Southeast Asia is a region known for active land‐use changes (LUC) over the past 60 years; yet, how trends in net CO2 uptake and release resulting from LUC activities (net LUC flux) have changed through past decades remains uncertain. The level of uncertainty in net LUC flux from process‐based models is so high that it cannot be concluded that
Masayuki Kondo, Stephen Sitch, Philippe Ciais, Frédéric Achard, Etsushi Kato, Julia Pongratz, Richard A. Houghton, Josep G. Canadell, Prabir K. Patra, Pierre Friedlingstein, Wei Li, Peter Anthoni, Almut Arneth, Frédéric Chevallier, Raphael Ganzenmüller, Anna Harper, Atul K. Jain, Charles Koven, Sebastian Lienert, Danica Lombardozzi, Takashi Maki, Julia E. M. S. Nabel, Takashi Nakamura, Yosuke Niwa, Philippe Peylin, Benjamin Poulter, Thomas A. M. Pugh, Christian Rödenbeck, Tazu Saeki, Benjamin Stocker, Nicolas Viovy, Andy Wiltshire, Sönke Zaehle   +32 more
wiley   +1 more source

Impact of Assimilating High‐Resolution Atmospheric Motion Vectors on Convective Scale Short‐Term Forecasts: 2. Assimilation Experiments of GOES‐16 Satellite Derived Winds

Journal of Advances in Modeling Earth Systems, Volume 13, Issue 10, October 2021., 2021
Abstract Building on the results from the observing system simulation experiments in Part I, this study investigates the impact of assimilating Geostationary Operational Environmental Satellite‐16 (GOES‐16) derived atmospheric motion vector (AMV) data on the convective scale numerical weather prediction (NWP) by using the National Severe Storms ...
Juan Zhao, Jidong Gao, Thomas A. Jones, Junjun Hu   +3 more
wiley   +1 more source

Sensor-Level Mosaic of Multistrip KOMPSAT-3 Level 1R Products

Applied Sciences, 2021
High-resolution satellite images such as KOMPSAT-3 data provide detailed geospatial information over interest areas that are evenly located in an inaccessible area.
Changno Lee, Jaehong Oh
doaj   +1 more source

ANALYSIS OF GEOMETRIC AND ORTHOGONAL CORRECTION ACCURACY FOR CAS-500 SATELLITE IMAGES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
This paper reports on geolocation accuracy of image products generated from Precision Image Processing (PIP) system developed for CAS-500 Satellite images.
Y. Lee, T. Kim, T. Kim
doaj   +1 more source

DETERMINATION OF OPTIMAL GROUND SAMPLING DISTANCE FOR MATCHING GCP CHIPS AND SATELLITE IMAGES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Many satellites for high resolution image acquisition are being developed very actively worldwide. In Korea, the Government has started a new space program, CAS (Compact Advanced Satellites), to promote image utilization and national space industry.
Y. Lee, J. Son, T. Kim
doaj   +1 more source

Automated RPCs Bias Compensation for KOMPSAT Imagery Using Orthoimage GCP Chips in Korea

IEEE Access, 2022
High-resolution satellite images, including KOMPSAT, WorldView-3, and Pléiades, are widely used for mapping and environmental monitoring. In particular, satellite images with high spatial resolution have accurate location information and provide ...
Jaehong Oh, Doochen Seo, Changno Lee, Seonkyeong Seong, Jaewan Choi   +4 more
doaj   +1 more source

Digital Rectification of the Kompsat 3A Satellite Image and Accuracy Assessment [PDF]

, 2022
Картографические материалы, особенно крупномасштабные карты и планы, являются важными данными для управления сельским хозяйством и устойчивого развития. Одним из основных методов сбора данных для крупномасштабного сельскохозяйственного картографирования ...
Якубов, Г. З., Yakubov, G.
core   +1 more source

Object-Based High-Rise Building Detection Using Morphological Building Index and Digital Map

Remote Sensing, 2022
High-rise buildings (HRBs) as modern and visually unique land use continue to increase due to urbanization. Therefore, large-scale monitoring of HRB is very important for urban planning and environmental protection.
Sejung Jung, Kirim Lee, Won Hee Lee
doaj   +1 more source