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The USGS Astrogeology Science Center is a national resource for the integration of planetary geoscience, cartography, and remote sensing. As explorers and surveyors, with a unique heritage of proven expertise and international leadership, we enable the ongoing successful investigation of the Solar System for humankind.
Almost all the pictures acquired by Mariner 10 that were used for mapping were obtained during the first encounter: those covering the southeast half of the quadrangle are incoming close-encounter images, and those covering the north-west corner are outoing close-encounter images. At the time the pictures were obtained, the terminator was at about long 7° to 8°, within the eastern part of the quadrangle. A large gap in coverage between in the incoming and outgoing images appears as a northeast-trending diagonal blank strip on the base map. A small part of this gap was filled in the southwestern part of the quadrangle by very poor second-encounter images.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: 1:5,000,000,
Geological and Geophysical,
Mariner10,
Mercury,
Planetary sciences,
From 2008 to 2012, the U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, Walla Walla District, developed an acoustic backscatter surrogate (model 1.0) for estimating real-time suspended-sediment concentration and loads at Clearwater River at Spalding, ID (USGS ID: 13342500) using a horizontally-mounted 3000kHz acoustic Doppler velocity meter (ADVM). This study is a continuation of the 2008 to 2012 acoustic backscatter surrogate study using samples collected since 2015 to validate the continued use of model 1.0. Sample data collected in 2015 to 2018 show a deviation from model 1.0 when backscatter data from the ADVM, after correction for acoustic losses, is greater than 65.7 decibels....
We used GeoClaw, a modeling program that simulates shallow surface flows to assess the level of risk associated with downstream flooding following an asteroid impact. Our hypothetical impact scenario was derived from the NASA PAIR 2023 PDC risk corridor: the impact is located in the Dallas-Fort Worth area of Texas (-96.9313 °W, +32.8970 °N) at 15:04 UTC October 22, 2036. We generated flood data for the six river basins that overlap with the possible hydrophobic radii associated with our hypothetical impact scenario. Since GeoClaw does not model precipitation, we used a point-source (spring) in each river basin, with the intention of converting between spring flow and rainfall rates for data analysis in future publications....
Monthly report to show updates on highlights and noteworthy results, publications, conferences and scientific meetings, talks or papers presented, visitors, and mapping progress tables. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, publications, personnel, conferences and scientific meetings, talks or papers presented, visitors, and mapping progress tables. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, publications, conferences and scientific meetings, talks or papers presented, visitors, and mapping progress tables. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, publications, conferences and scientific meetings, talks or papers presented, visitors, and mapping progress tables. Includes unpublished works and works in progress.
As part of a NASA-funded study of diurnal thermal imaging at a Mars analog site, we conducted simultaneous oblique thermal imaging and in situ temperature measurements within two regions of interest on the Pisgah lava field, near Ludlow, California. Both regions of interest contained either cave or cave-like alcoves. Data released in this report was collected from 03/23/2010 to 03/25/2010. The experiment was conducted at Pisgah lava field, which is located about 175 miles northeast of Los Angeles on Bureau of Land Management lands. Consisting of Quaternary basaltic lava and a cinder cone superimposed on alluvial deposits and lacustrine sediments of Lavic Lake playa (Dibblee, 1966), the flow is approximately 21,000...
Categories: Data;
Tags: California,
Ludlow,
Pisgah Crater,
USGS Science Data Catalog (SDC),
USGS:609aa8a3d34ea221ce36e98c,
CSV files containing measurements of ventifact feature and wind tail orientations, sand flux and wind modeling results.
Categories: Data;
Tags: Geomorphology,
Mars,
Planetary Sciences,
USGS Science Data Catalog (SDC),
erosion,
Monthly report to show updates on highlights and noteworthy results, publications, personnel, conferences and scientific meetings, talks or papers presented, visitors, and general information. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, publications, personnel, conferences and scientific meetings, talks or papers presented, visitors, and mapping progress tables. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, new projects, significant changes in projects, conferences and scientific meetings, and visitors. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, publications, personnel, conferences and scientific meetings, talks or papers presented, visitors, and mapping progress tables. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, personnel, conferences and scientific meetings, talks or papers presented, visitors, and general information. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, new projects, publications, personnel, conferences and scientific meetings, talks or papers presented, visitors, and general information. Includes unpublished works and works in progress.
Monthly report to show updates on highlights and noteworthy results, talks or papers presented, and mapping progress tables. Includes unpublished works and works in progress.
USGS is assessing the feasibility of map projections and grid systems for lunar surface operations. We propose developing a new Lunar Transverse Mercator (LTM), the Lunar Polar Stereographic (LPS), and the Lunar Grid Reference Systems (LGRS). We have also designed additional grids designed to NASA requirements for astronaut navigation, referred to as LGRS in Artemis Condensed Coordinates (ACC), but this is not released here. LTM, LPS, and LGRS are similar in design and use to the Universal Transverse Mercator (UTM), Universal Polar Stereographic (LPS), and Military Grid Reference System (MGRS), but adhere to NASA requirements. LGRS ACC format is similar in design and structure to historic Army Mapping Service Apollo...
Metadata on this main landing page applies to all DTMs listed under Child Items, apart from USGS-made DTMs [HRSC DTM_75 (centered at -28.8N, 78.6E)_USGS and CTM DTM over "Crater L" (centered at -23.1N, 74.3E)_USGS]. Metadata associated with USGS-made DTMs are located with DTM files under their respective Child Item.
Monthly report to show updates on highlights and noteworthy results, conferences and scientific meetings, and visitors. Includes unpublished works and works in progress.
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