Results 71 to 80 of about 11,790 (229)

Dominant Role of Soil Moisture Regulating Vegetation Water Content During Flash Drought Evolution

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Increasing flash drought exposure raises global concerns regarding terrestrial ecosystem responses. We investigate the effect of concurrent and past rootzone soil moisture (SM) and vapor pressure deficit (VPD) on vegetation optical depth (VOD), a satellite‐based proxy of vegetation‐water content, during flash drought evolution.
Amitesh Gupta, Lanka Karthikeyan, Ashok Mishra, Lixin Wang   +3 more
wiley   +1 more source

Results from the Wilkinson Microwave Anisotropy Probe

, 2014
The Wilkinson Microwave Anisotropy Probe (WMAP) mapped the distribution of temperature and polarization over the entire sky in five microwave frequency bands. These full-sky maps were used to obtain measurements of temperature and polarization anisotropy
Bennett, Charles L., Komatsu, Eiichiro
core   +1 more source

Process‐Oriented Calibration of a Turbulence Scheme in the DOE's Global Storm‐Resolving Model Using Machine Learning

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract A process‐oriented calibration framework is developed for the Simplified Higher‐Order Closure (SHOC) turbulence scheme in DOE's Simple Cloud Resolving E3SM Atmospheric Model (SCREAM). This framework leverages machine learning surrogates and observational constraints to efficiently calibrate SHOC adjustable parameters across two convective ...
Yunyan Zhang, Tianning Su, Hewei Tang, Peter Bogenschutz, Stephen A. Klein, Charles Jackson, Peter Caldwell   +6 more
wiley   +1 more source

Long‐Term Observations Reveal Non‐Negligible Temperature Contributions to Moist Static Energy During the MJO Transition From Suppressed to Active Phases

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The evolution of moist static energy (MSE) is widely used to understand the organization and propagation of the Madden‐Julian Oscillation (MJO). Past studies, largely based on reanalysis or short‐term observations, have highlighted humidity as the dominant driver of MJO evolution.
Nirmal Alex, Pallav Ray, Mike Splitt, Steven Lazarus, Samson Hagos   +4 more
wiley   +1 more source

Influence of meter-scale wind-formed features on the variability of the microwave brightness temperature around Dome C in Antarctica [PDF]

The Cryosphere, 2014
Space-borne passive microwave radiometers are widely used to retrieve information in snowy regions by exploiting the high sensitivity of microwave emission to snow properties.
G. Picard, A. Royer, L. Arnaud, M. Fily
doaj   +1 more source

The Anisotropy in the Cosmic Microwave Background At Degree Angular Scales

, 1994
We detect anisotropy in the cosmic microwave background (CMB) at degree angular scales and confirm a previous detection reported by Wollack et al. (1993). The root-mean-squared amplitude of the fluctuations is $44^{+13}_{-7} \mu$K.
Jarosik, N., Netterfield, C. B., Page, L., Wilkinson, D., Wollack, E.   +4 more
core   +1 more source

Anomalous Opaque Clouds Revealed by Collocated MODIS and CALIOP Retrievals

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract This paper examines discrepancies between cloud optical thickness (COT) retrievals from the Moderate Resolution Imaging Spectroradiometer (MODIS) cloud product, and cloud opacity measurements from the Cloud‐Aerosol Lidar with Orthogonal Polarization (CALIOP) lidar.
Adeleke Segun Ademakinwa, Chamara Rajakapshe, Zhibo Zhang   +2 more
wiley   +1 more source

Ground‐Based Microwave Measurements of ClO and O3 Over Scott Base, Antarctica

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract We present measurements from a new microwave instrument that has been deployed at Scott Base, Antarctica, primarily to measure ClO. The new instrument allows for the extension of the time series of lower stratospheric ClO measurements begun in 1996 at this site, while some of the technical improvements offer the possibility of making ...
Gerald E. Nedoluha, R. Michael Gomez, Ian Boyd, Helen Neal, Douglas R. Allen, Alan Parrish, Brian J. Connor, Michael Kotkamp, Kate McKenzie, Eric L. Fleming, Thomas F. Hanisco, Michelle L. Santee   +11 more
wiley   +1 more source

Improving Air Quality Simulations in California's San Joaquin Valley Using Land Surface Remote Sensing

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract Accurate regional air quality modeling is crucial for the development of effective air pollution mitigation plans. Precisely simulating meteorological conditions, especially planetary boundary layer (PBL) properties, is challenging due to complex land surface conditions.
Yueqi Jiang, Li Zhang, Fan Wu, Sarika Kulkarni, Yu Yan Cui, Chenxia Cai, Wei Peng, Kenneth J. Davis   +7 more
wiley   +1 more source

Simulating Passive Microwave Radiometer Designs Using Simulink [PDF]

SIMULATION, 2002
The authors have developed a simulation system for a passive microwave radiometer using MATLAB and SIMULINK from The MathWorks, Inc. The system comprises a high-level block diagram simulation for a modern instrument, the Scanning Low Frequency Microwave Radiometer, or SLFMR. The hardware prototype SLFMR, which was designed to map sea surface salinity,
Burrage, Derek M., Goodberlet, Mark A., Heron, Malcom   +2 more
openaire   +2 more sources