Results 21 to 30 of about 11,761 (247)

SORCE and TSIS‐1 SIM Comparison: Absolute Irradiance Scale Reconciliation

Earth and Space Science, 2022
The Solar Radiation and Climate Experiment (SORCE) and Total and Spectral Irradiance Sensor (TSIS‐1) conducted an intercomparison for the two Spectral Irradiance Monitors (SIM) spanning 704 days from 23 March 2018 to 25 February 2020 and permitted 554 ...
Jerald Harder, Stéphane Béland, Steven V. Penton, Erik Richard, Elizabeth Weatherhead, Eduardo Araujo‐Pradere   +5 more
doaj   +1 more source

Evaluation of MODIS LAI/FPAR Product Collection 6. Part 2: Validation and Intercomparison

Remote Sensing, 2016
The aim of this paper is to assess the latest version of the MODIS LAI/FPAR product (MOD15A2H), namely Collection 6 (C6). We comprehensively evaluate this product through three approaches: validation with field measurements, intercomparison with other ...
Kai Yan, Taejin Park, Guangjian Yan, Zhao Liu, Bin Yang, Chi Chen, Ramakrishna R. Nemani, Yuri Knyazikhin, Ranga B. Myneni   +8 more
doaj   +1 more source

Centre For Intercomparisons [PDF]

16th International Congress of Metrology, 2013
“To measure is to know” Lord Kelvin said. But how well are you measuring and do you measure in the right way? A simple way to check the quality of your measurement is to attend in intercomparisons. Participating in an intercomparison can be a simple and powerful way to verify a measurement capability and it is the most effective way to find out how ...
Azra Hajradinovic, Viktoria Jonasson
openaire   +1 more source

Intercomparison of Ground- and Satellite-Based Total Ozone Data Products at Marambio Base, Antarctic Peninsula Region

Atmosphere, 2019
This study aims to compare the ground-based Brewer spectrophotometer total ozone column measurements with the Dobson spectrophotometer and various satellite overpass data available at Marambio Base during the period 2011−2013. This station provides
Klára Čížková, Kamil Láska, Ladislav Metelka, Martin Staněk   +3 more
doaj   +1 more source

Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer

Journal of Mathematical and Fundamental Sciences, 2023
As it impacts both environmental and health conditions, the measurement of nitrogen dioxide (NO2) in industrial and residential areas needs comprehensive and reliable instrumentation providing long-interference-free operation and minimum maintenance and
Januar Arif Fatkhurrahman, Puji Lestari
doaj   +1 more source

Feasibility study of in-house second-channel calibration of dual-channel electrometers using a battery-powered current source. [PDF]

J Appl Clin Med Phys
Abstract Background An ionization chamber and electrometer allow measurement of the absorbed dose to water. A sensitivity comparison between electrometers is essential for quality control, and an efficient method is available to accurately measure the electrometer sensitivity coefficient without using a linear accelerator (linac).
Tsuno H, Sasaki R, Sasaki K, Nishi K, Ushikawa T, Goto D, Kawashima Y, Kosugi R.   +7 more
europepmc   +2 more sources

Results of international comparison tests on determination of ¹³⁷Cs activity concentration in soil samples

Радиационная гигиена, 2020
In 2016—2019, comparison tests of different methods for quantitative determination of the content of the technogenic radionuclide 137Cs in soil samples were performed.
V. P. Ramzaev, Ch. Bernhardsson, A. A. Dvornik, Zh. V. Bakarikova, O. Karlberg, А. V. Vodovatov, M. Jonsson, V. A. Nekrasov   +7 more
doaj   +1 more source

InterComparison and Evaluation of MultiSource Soil Moisture Products in China

Earth and Space Science, 2021
Long‐term, accurate soil moisture (SM) estimates are crucial for climate, hydrology, and agriculture. Multisource SM products are available at high spatiotemporal coverage, but their uncertainties have yet to be fully evaluated in China. Ten SM products (
Huiqing Li, Aizhong Ye, Yuhang Zhang, Wenwu Zhao   +3 more
doaj   +1 more source

Firn Model Intercomparison Experiment (FirnMICE) [PDF]

Journal of Glaciology, 2017
ABSTRACTEvolution of cold dry snow and firn plays important roles in glaciology; however, the physical formulation of a densification law is still an active research topic. We forced eight firn-densification models and one seasonal-snow model in six different experiments by imposing step changes in temperature and accumulation-rate boundary conditions;
Lundin, Jessica M.D., Stevens, C. Max, Arthern, Robert, Buizert, Christo, Orsi, Anais, Ligtenberg, Stefan R.M., Simonsen, Sebastian, Cummings, Evan, Essery, Richard, Leahy, Will, Harris, Paul, Helsen, Michiel, Waddington, Edwin   +12 more
openaire   +6 more sources

Main results of the international intercomparison of passive radon detectors under field conditions in Marie Curie’s tunnel in Lurisia (Italy)

Nukleonika, 2016
In recent years a large number of radon intercomparison exercises has been organized; most of them took place in radon chambers, in reference atmosphere of the parameter to control (i.e.
Cardellini Francesco, Chiaberto Enrico, Garlati Luisella, Giuffrida Daniele, Leonardi Federica, Magnoni Mauro, Minchillo Gianfranco, Prandstatter Anna, Serena Elena, Trevisi Rosabianca, Tripodi Rosamaria, Veschetti Miriam   +11 more
doaj   +1 more source