Deep Focusing in Time-Distance Helioseismology

Deep Interior Radar Imaging of Comets

Deep Interior: Multiple-Rendezvous Prospecting of NEOs

Deep Magnetic Sounding of the Moon in the Solar Wind: Accounting for Plasma Diamagnetism

Deep Sea Soundings near the Equator

Deep-mantle high-viscosity flow and thermochemical structure inferred from seismic and geodynamic data

Defining the threshold wind velocity for moistened sediments

Definition of disturbance and quietness with topside ionosonde data

Deformation of the Envelope of a Broadband Signal during Propagation through the Martian Ionosphere

Degradation-Free Spectrometers For Solar EUV Measurements: A Progress Report

Delay time of plasma oscillations with respect to the commencement of electron injection

Delay-time fluctuations of a short-wave signal in oblique sounding

Delay/Doppler Radar Altimetry for Outer Planet Applications

Delta 18O and delta 13C values of modern brachiopod shells

Demonstration of solar echoes using the Air Force OTH-B radar

Denoising using time-frequency and image processing methods

Density and frequency of electron collisions in the ionosphere from measurements made during flights of Vertikal-type rockets in 1975

Density and Sound Velocity of Iron-Sulfur Alloying Liquids at High Pressures and Implications to Planetary Cores

Density and temperature profiles measured in the mesosphere and lower thermosphere during winter anomaly conditions

Density and temperature profiles obtained by lidar between 35 and 70 km