Results 31 to 40 of about 123 (84)

PRISMA L1 and L2 Performances within the PRISCAV Project: The Pignola Test Site in Southern Italy

Remote Sensing, 2022
In March 2019, the PRISMA (PRecursore IperSpettrale della Missione Applicativa) hyperspectral satellite was launched by the Italian Space Agency (ASI), and it is currently operational on a global basis.
Stefano Pignatti, Aldo Amodeo, Maria Francesca Carfora, Raffaele Casa, Lucia Mona, Angelo Palombo, Simone Pascucci, Marco Rosoldi, Federico Santini, Giovanni Laneve   +9 more
doaj   +1 more source

Calibrating Geosynchronous and Polar Orbiting Satellites: Sharing Best Practices

Remote Sensing, 2020
Earth remote sensing optical satellite systems are often divided into two categories—geosynchronous and sun-synchronous. Geosynchronous systems essentially rotate with the Earth and continuously observe the same region of the Earth.
Dennis Helder, David Doelling, Rajendra Bhatt, Taeyoung Choi, Julia Barsi   +4 more
doaj   +1 more source

Retrieval of Aerosol and Surface Properties at High Spatial Resolution: Hybrid Approach and Demonstration Using Sentinel‐5p/TROPOMI and PRISMA

Journal of Geophysical Research: Atmospheres, Volume 129, Issue 15, 16 August 2024.
Abstract Satellite remote sensing of aerosol is largely conducted at moderate or coarse spatial resolution around 1–10 km. Nevertheless, at urban areas with high human activity, aerosol can originate from complex emission sources and may also vary strongly in space.
Cheng Chen, Pavel Litvinov, Oleg Dubovik, David Fuertes, Christian Matar, Franco Miglietta, Monica Pepe, Lorenzo Genesio, Lorenzo Busetto, Lukas Bindreiter, Verena Lanzinger, Martin de Graaf, Gijsbert Tilstra, Piet Stammes, Christian Retscher   +14 more
wiley   +1 more source

Implementing a Dual-Spectrometer Approach for Improved Surface Reflectance Estimation

Remote Sensing, 2023
Surface reflectance measurement is an integral part of the vicarious calibration of satellite sensors and the validation of satellite-derived top-of-atmosphere (TOA) and surface reflectance products.
Mahesh Shrestha, Joshua Mann, Emily Maddox, Terry Robbins, Jeffrey Irwin, Travis Kropuenske, Dennis Helder   +6 more
doaj   +1 more source

HYPERNETS: a network of automated hyperspectral radiometers to validate water and land surface reflectance (380–1680 nm) from all satellite missions

Frontiers in Remote Sensing
Satellites are now routinely used for measuring water and land surface reflectance and hence environmentally relevant parameters such as aquatic chlorophyll a concentration and terrestrial vegetation indices.
Kevin G. Ruddick, Agnieszka Bialek, Vittorio E. Brando, Pieter De Vis, Ana I. Dogliotti, David Doxaran, Philippe Goryl, Clémence Goyens, Joel Kuusk, Daniel Spengler, Kevin R. Turpie, Quinten Vanhellemont   +11 more
doaj   +1 more source

Method of Vicarious Calibration of the Kanopus-V Satellite Constellation Data Based on Long-Term Observation of RadCalNet Polygons

Rocket-space device engineering and information systems, 2021
The article discusses a method of vicarious data calibration of the MSS sensor of the Kanopus-V spacecraft based on the observation of RadCalNet polygons in the 2018–2020 period. The technique includes the stage of processing ground-based RadCalNet measurements for the period, with the aim of analytical approximation of the time series to ensure its ...
A.S. Stremov, A.I. Vasilyev, V.P. Kovalenko   +2 more
openaire   +1 more source

The Characterization of the Railroad Valley Playa Test Site Using the DESIS Imaging Spectrometer from the Space Station Orbit

Remote Sensing
The reflectance-based vicarious calibration approach uses measurements at well-understood test sites to provide top-of-atmosphere reference reflectance values suitable for inter-calibration approaches and does not require coincident views.
Mohammad H. Tahersima, Kurtis Thome, Brian N. Wenny, Derrick Lampkin, Norvik Voskanian, Sarah Eftekharzadeh Kay, Mehran Yarahmadi   +6 more
doaj   +1 more source

Derivation of Hyperspectral Profiles for Global Extended Pseudo Invariant Calibration Sites (EPICS) and Their Application in Satellite Sensor Cross-Calibration

Remote Sensing
This study presents the selection of 20 Extended Pseudo Invariant Calibration Sites (EPICS) for radiometric calibration and the derivation of their hyperspectral profiles using the DLR Earth Sensing Imaging Spectrometer (DESIS) and Hyperion data.
Juliana Fajardo Rueda, Larry Leigh, Morakot Kaewmanee, Harshitha Byregowda, Cibele Teixeira Pinto   +4 more
doaj   +1 more source

A curve-based radiometric calibration method for wavelength of interest hyperspectral imaging: a case study of QMX-1/CCTF-HI

Geo-spatial Information Science
Wavelength of interest (WOI) hyperspectral imaging technology offers significant advantages in optimizing mission-specific goals and improving cost-effectiveness in hyperspectral Earth observation.
Keyi Rao, Siqing Zhang, Zhengcan Li, Zhixiong Dai, Liangliang Zheng, Weixing Xu, Nan Xie, Ruixin Fang, Xuemin Zhang, Shaoju Wang, Zhaocong Wu   +10 more
doaj   +1 more source

Methods for Earth-Observing Satellite Surface Reflectance Validation

Remote Sensing, 2019
In this study an initial validation of the Landsat 8 (L8) Operational Land Imager (OLI) Surface Reflectance (SR) product was performed. The OLI SR product is derived from the L8 Top-of-Atmosphere product via the Landsat Surface Reflectance Code (LaSRC ...
Moe Badawi, Dennis Helder, Larry Leigh, Xin Jing   +3 more
doaj   +1 more source