Results 11 to 20 of about 16,120 (75)

Spectrally Dependent CLARREO Infrared Spectrometer Calibration Requirement for Climate Change Detection. [PDF]

J Clim, 2017
Detecting climate trends of atmospheric temperature, moisture, cloud, and surface temperature requires accurately calibrated satellite instruments such as the Climate Absolute Radiance and Refractivity Observatory (CLARREO).
Liu X, Wu W, Wielicki BA, Yang Q, Kizer SH, Huang X, Chen X, Kato S, Shea YL, Mlynczak MG.   +9 more
europepmc   +3 more sources

Evaluation of the Blandford Local Area Agreement 11-19 Pathfinder Project [PDF]

, 2006
This document reports on monitoring and evaluation of the Blandford Local Area Agreement 11-19 Pathfinder project. The project started in September 2005 and it aimed to develop and provide youth support services to all 11-19 young people in the catchment
Apostolakis, Christos
core   +5 more sources

Calibration and Validation for the Surface Biology and Geology (SBG) Mission Concept: Recommendations for a Multi‐Sensor System for Imaging Spectroscopy and Thermal Imagery

Journal of Geophysical Research: Biogeosciences, Volume 128, Issue 9, September 2023., 2023
Abstract The primary objective of the National Aeronautics and Space Administration (NASA) Surface Biology and Geology (SBG) mission is to measure biological, physical, chemical, and mineralogical features of the Earth's surface, realizing a key conceptual component of the envisioned NASA Earth System Observatory (ESO).
Kevin R. Turpie, Kimberly A. Casey, Christopher J. Crawford, Liane S. Guild, Hugh Kieffer, Guoqing (Gary) Lin, Raymond Kokaly, Alok K. Shrestha, Cody Anderson, Shankar N. Ramaseri Chandra, Robert Green, Simon Hook, Constantine Lukashin, Kurt Thome   +13 more
wiley   +1 more source

Development of the Ames Global Hyperspectral Synthetic Data Set: Surface Bidirectional Reflectance Distribution Function

Journal of Geophysical Research: Biogeosciences, Volume 128, Issue 6, June 2023., 2023
Abstract This study introduces the Ames Global Hyperspectral Synthetic Data set (AGHSD), in particular the surface bidirectional reflectance distribution function (BRDF) product, to support the NASA Surface Biology and Geology (SBG) mission development.
Weile Wang, Jennifer Dungan, Vanessa Genovese, Yohei Shinozuka, Qiguang Yang, Xu Liu, Benjamin Poulter, Ian Brosnan   +7 more
wiley   +1 more source

Solar Intensity Dispersing (SID) Concept for CubeSat Spectral CLARREO‐Like Radiance Measurements

Earth and Space Science, Volume 10, Issue 1, January 2023., 2023
Abstract NRC Decadal Surveys stated that the most critical goal for orbital climate measurements was improving accuracy. This is so comparisons can be better made with models, tuning theory to match the truth. That gives confidence in model predictions of future global cloud albedo warming signals, estimated to be only 0.8%/decade or less.
G. Matthews
wiley   +1 more source

A Comparison of Top‐Of‐Atmosphere Radiative Fluxes From CERES and ARISE

Journal of Geophysical Research: Atmospheres, Volume 127, Issue 24, 27 December 2022., 2022
Abstract Uncertainty in Arctic top‐of‐atmosphere (TOA) radiative flux observations stems from the low sun angles and the heterogeneous scenes. Advancing our understanding of the Arctic climate system requires improved TOA radiative fluxes. We compare Cloud and Earth's Radiant Energy System (CERES) TOA radiative fluxes with Arctic Radiation‐IceBridge ...
Patrick C. Taylor, Kyle F. Itterly, Joe Corbett, Anthony Bucholtz, Sergio Sejas, Wenying Su, Dave Doelling, Seiji Kato   +7 more
wiley   +1 more source

An Entropy Framework for Evaluating Reflectance Observations for Climate Studies

Earth and Space Science, Volume 9, Issue 7, July 2022., 2022
Abstract This study evaluated the comparative entropy represented in shortwave (300–1,750 nm) passive remote sensing measurements from conceptual instruments with varying systematic measurement uncertainties and spectral resolutions. The focus was on spectral and broadband reflectance averaged over large spatial scales typically relevant for climate ...
Yolanda L. Shea, Constantine Lukashin, Xu Liu, Daniel R. Feldman, Peter Pilewskie   +4 more
wiley   +1 more source

NASA CERES Spurious Calibration Drifts Corrected by Lunar Scans to Show the Sun Is not Increasing Global Warming and Allow Immediate CRF Detection

Geophysical Research Letters, Volume 48, Issue 15, August 2021., 2021
Abstract Orbital Earth Radiation Budget measurement comparisons to models, are critical for climate prediction confidence. Satellite systems must reduce calibration drifts for this purpose. NASA Clouds and the Earth's Radiant Energy System (CERES) measures Earth albedo reductions that if correct, would increase solar forcing and suggest greater ...
Grant Matthews
wiley   +1 more source

CLARREO Pathfinder IC-SDS Data Processing System Perspective

, 2022
Describes the science data system architectures under development for the CLARREO Pathfinder mission scheduled to launch Dec. 2022.
Chris Currey
core   +1 more source

CLARREO Pathfinder Inter-calibration: Requirements and Objecti [PDF]

, 2019
The Climate Absolute Radiance and Refractivity Observatory (CLARREO) is a Tier 1 mission recommended by the NRC Decadal Survey 2007. In 2016, NASA allocated funding for a CLARREO Pathfinder mission to demonstrate essential measurement technologies ...
Shea, Y., Wielicki, B. A., Thome, K., Lukashin, Constantine   +3 more
core   +1 more source