An Updated Database of Coronae on Venus
We present an updated database of coronae on Venus, increasing the number of features from 336 to 523. Additional information is contained in the original extended abstract.
Stofan, E. R.↗
Engineering topics
Stofan, E. R.
Publications and source records attributed to Stofan, E. R..
Implications of a Gravity Survey for the Formation Mechanisms and Stage of Evolution of Topographic (Stealth) Coronae
Gravity/topography admittance spectra for 34 topographic (stealth) coronae show a range of bottom and top loading signatures. Here we interpret these loading signatures in the context of possible models of their formation. Additional information is contained in the original extended abstract.
Smrekar, S. E.↗
Pressure Distribution in Inflated Lava Flows
There has been considerable debate regarding the role of inflation in terrestrial and planetary lava flow emplacement. We used a tumuli growth model to estimate the pressure within Hawaiian lava flows to better understand inflation processes. Additional information is contained in the original extended abstract.
Anderson, S. W.↗
Topographic Feature Names on Venus: Progress in 2000, Review of 1997-2000 Development, Current State, and Prospective
12 names assigned on Venus in 2000. The current list includes 1821 names of 21 feature types. 95% of names present 11 types of features. The main named types are craters - 872, and coronae - 267. These two types possess 62% of the names. Additional information is contained in the original extended abstract.
Burba, G. A.↗
Sources of Magnetic Anomalies on Mars and Their Implications
The sources of intense magnetic anomalies on Mars are investigated with models including constraints from geology, gravity and topography. Implications of the derived sources for the early evolution of Mars are examined.
Raymond, C. A.↗
Geology of the V28 Quadrangle: Hecate Chasma, Venus
The Hecate Chasma Quadrangle (V28), mapped at 1:5,000,000 scale, extends from 0-25 N and 240-270 Longitude. The quadrangle has thirteen impact craters, several large volcanoes, many coronae, three chasmata, and northern Hinemoa Planitia.
Stofan, E. R.↗
Geology of the V39 Quadrangle: Taussig, Venus
Geologic mapping of the V39 quadrangle has revealed a complex and varied stratigraphy, which from initial analysis supports a non-directional history of Venus.
Brian, A. W.↗
More New Names for the Features on Venus: A Review of the 1999 Progress
Sixty-five features of 13 different types were named on Venus in 1999. Eleven of the names are in the Northern hemisphere, and 54 are in Southern hemisphere to support the NASA program of Venus geologic mapping at 1:5,000,000 scale after the Magellan Synthetic Aperture Radar (SAR) image data.
Burba, G. A.↗
New Insights into Coronae Evolution: Mapping on Venus
Coronae are geologically and geophysically important features on Venus, since they are thought to contribute to planetary heat loss. It is thus necessary to understand their role in space and time in the evolution of Venus. We show that the formation of corona annuli can be multistaged and that the position of the annulus does not always coincide with the main topographic ridges and troughs that outline the feature. We demonstrate that coronae do not all have the same relative ages with respect to adjacent units.
coronae↗
Mission to the Solar System: Exploration and Discovery. A Mission and Technology Roadmap
Solar System exploration addresses some of humanity's most fundamental questions: How and when did life form on Earth? Does life exist elsewhere in the Solar System or in the Universe? - How did the Solar System form and evolve in time? - What can the other planets teach us about the Earth? This document describes a Mission and Technology Roadmap for addressing these and other fundamental Solar System Questions. A Roadmap Development Team of scientists, engineers, educators, and technologists worked to define the next evolutionary steps in in situ exploration, sample return, and completion of the overall Solar System survey. Guidelines were to "develop aa visionary, but affordable, mission and technology development Roadmap for the exploration of the Solar System in the 2000 to 2012 timeframe." The Roadmap provides a catalog of potential flight missions. (Supporting research and technology, ground-based observations, and laboratory research, which are no less important than flight missions, are not included in this Roadmap.)
Gulkis, S.↗
The Millennium Program: Technology for Exploration in the 21st Century
Explore the source record for details and available documents.
planetary surfaces atmospheres interplanetary envi↗
Large-Scale Volcanic Provinces on Venus: Implications for Plains Emplacement
Explore the source record for details and available documents.
volcanism plains terrains thermal Magellan radar d↗
Overview of the Spaceborne Imaging Radar-C / X-band Synthetic Aperture Radar (SIR-C/X-SAR) Missions
The Spaceborne Imaging Radar-C / X-band Synthetic Aperture Radar (SIR-C/X-SAR, the most advanced imaging radar system to have flown in Earth orbit, was carried in the cargo bay of the Space Shuttle Endeavour in April and October, 1994. SIR-C/X-SAR simultaneously recorded data at three wavelengths (L-, C-, and X-bands; 23.5, 5.8 and 3.1 cm respectively).
SIR-C↗
Large Topographic Rises on Venus: Implications for Mantle
Topographic rises on Venus have been identified that are.
Venus mantle upwelling topographic rises tectonics↗
The Spaceborne Imaging Radar-C, X-Band Synthetic Aperture radar (SIR-C/X-SAR) Mission Overview
The Spaceborne Imaging Radar-C, X-Band Synthetic Aperture Radar (SIR-C/X-SAR) was launched on space shuttle Endeavour at 7:05 AM EDT, Saturday, April 9, 1994. Soon after launch, the radars were activated and began around the clock operations which lasted for the next 10 days.
SIR-C/X-SAR global environment radar interferometr↗
Earth Surface Change as Viewed by the Spaceborne Imaging Radar-C. X-Band Synthetic Aperture Radar (SIR-C/X-SAR) and shuttle Hand-Held Photographs
The Spaceborne Imaging Radar-C, X-Band Synthetic Aperture Radar (SIR-C/X-SAR) was launched on space shuttle Endeavour at 7:05 AM EDT, Saturday, April 9, 1994 as part of the Space Radar Lab (SRL-1). Soon after launch, the radars were activated and began arount the clock operations which lasted for the next 10 days.
CIR-C/X-SAR↗
Earth from Sky
Soon after launch on Friday, September 30, the crew of the space shuttle Endeavour were trated to a dramatic sight. The Kliuchevskoi volcano in Kamchatka, Russia, was spewing plumes of ash 65,000 feet into the air.
SIR-C↗