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Quasi‐4‐Day Wave: Atmospheric Manifestation of the First Symmetric Rossby Normal Mode of Zonal Wavenumber 2
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- Journal of Geophysical Research: Atmospheres
, 2021-07-07)
This paper describes global characteristics of the westward‐propagating planetary wave with a period of ∼4 days and zonal wavenumber 2, here referred to as quasi‐4‐day wave (Q4DW), which is considered to be a manifestation ...
A Stochastic Representation of Temperature Fluctuations Induced by Mesoscale Gravity Waves
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- Journal of Geophysical Research: Atmospheres
, 2019)
Ubiquitous mesoscale gravity waves generate high cooling rates important for cirrus formation. We make use of long-duration balloon observations to devise a probabilistic model describing mesoscale temperature uctuations ...
Fast EVP Solutions in a High-Resolution Sea Ice Model
(
- Journal of Advances in Modeling Earth Systems
, 2019)
Sea ice dynamics determine the drift and deformation of sea ice. Nonlinear physics, usually expressed in a viscous-plastic rheology, makes the sea ice momentum equations notoriously difficult to solve. At increasing sea ...
Architecture of tunnel valleys in the southeastern North Sea: new insights from high-resolution seismic imaging
(
- Journal of Quaternary Science
, 2020)
Tunnel valleys are assumed to form near the margin of ice sheets. Hence, they can be used to reconstruct the dynamics of former ice margins. The detailed formation and infill of tunnel valleys, however, are still not well ...
Interannual to millennial-scale variability of River Ammer floods and its relationship with solar forcing
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- International Journal of Climatology
, 2020)
The relationship between River Ammer flood frequency variability, extreme summer climate over Europe, and solar forcing is investigated. First, we used observational data to evaluate extreme weather and climate anomaly ...
Opportunistic Constant Target Matching—A New Method for Satellite Intercalibration
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- Earth and Space Science
, 2020)
Opportunistic constant target matching is a new method for satellite intercalibration. It solves a long-standing issue with the traditional simultaneous nadir overpass (SNO) method, namely, that it typically provides only ...
Stronger Global Warming on Nonrainy Days in Observations From China
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- Journal of Geophysical Research: Atmospheres
, 2020)
Nonrainy days have rather different hydrologic and radiative conditions than rainy days, but few investigations considered how these different conditions contribute to the observed global warming. Here, we show that global ...
New Methods for Linking Science Objectives to Remote Sensing Observations: A Concept Study Using Single- and Dual-Pair Satellite Gravimetry Architectures
(
- Earth and Space Science
, 2020)
In this manuscript, we present a new analysis tool, called space-time-accuracy grid (STAG) analysis, to simultaneously assess the performance of an observing system architecture across space and time. Such an analysis tool ...
Broad Consistency Between Observed and Simulated Trends in Sea Surface Temperature Patterns
(
- Geophysical Research Letters
, 2020)
Using seven single-model ensembles and the two multimodel ensembles CMIP5 and CMIP6, we show that observed and simulated trends in sea surface temperature (SST) patterns are globally consistent when accounting for internal ...
The Geomagnetic Kp Index and Derived Indices of Geomagnetic Activity
(
- Space Weather
, 2021-05-07)
The geomagnetic Kp index is one of the most extensively used indices of geomagnetic activity, both for scientific and operational purposes. This article reviews the properties of the Kp index and provides a reference for ...