To Ensure the Integrity of the Cryogenic Propellant Depot Tank Within the Expected Radiation and Space Debris Environment Project
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
We intend to develop the technology for lightweight composite structure suitable for both cryogenic fuel depot storage as well as human in-space habitat. These will incorporate improved impact technologies for micro-meteor/space debris protection and radiation capable composite technologies. The application of filament wound composite pressure vessels to uses requiring pressurized storage at cryogenic temperatures has been undertaken at HyPerComp Engineering with promising results. Progress has been made in expanding the knowledge of how filament winding fibers and matrix systems (resins) react to loads and strain at extremely cold temperatures, such as would be encountered in in-space fuel storage depots. As with the cryogenic composite pressure vessel research, HyPerComp Engineering has been conducting research and has patented, jointly with NASA, a robust impact resistant composite pressure vessel technology. This technology shows great promise in its resistance to performance degradation from impacts, such as might be experienced in the space environment in the form of micrometeoroids and space debris. This "robust" technology has also demonstrated "non-catastrophic failure-mode" capabilities which could potentially reduce mission losses and tankage losses due to both space debris and other incidental impacts. We intend to develop a baseline composite material capable of both cryogenic and radiation applications.
Crossover difference data records (XDR) from GEOSAT Geodetic Mission (GM) and Exact Repeat Mission (ERM) data from 31 March 1985 to 11 November 1987 (NCEI Accession 9000190)
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
Crossover difference data records (XDRs) from the GEOSAT Geodetic Mission (GM) and Exact Repeat Mission (ERM) for the time period of March 31, 1985 to November 11, 1987. Parameters include: time, orbit, latitude/longitude, and sea surface height. Corrections to the data include: sea level, wind and wave data, tides, dry and wet troposphere, ionosphere, height bias, altimeter crossover differences, altimeter sea surface measurement, and spacecraft orientation. These data were submitted by the U.S. Navy via National Ocean Service. The US Navy Geosat (Geodetic Satellite) radar altimeter mission lasted for nearly 5 years (March 1985 to January 1990) and collected approximately 750 million measurements of sea level, wave height, and wind speed over the global oceans. During the Geodetic Mission (1986 to 1987), the satellite did not repeat its ground track for the duration of the mission. The orbit of the satellite was changed in early October 1986 to begin the Exact Repeat Mission (ERM) which lasted from November 1987 until the satellite quit functioning in January 1990. During the ERM, the satellite repeated its ground track every 17 days. Data were initially processed by the Johns Hopkins University Applied Physics Laboratory in Laurel, MD in coordination with the NOAA/NOS Satellite Altimeter Group. Data products were transferred to the NOAA National Oceanographic Data Center (NODC) for distribution. Data products are archived at the NODC.
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
To determine the relative needs of the U.S. Fish and Wildlife Service, the Federal Highway Administration FHWA was asked to inventory all public access and administrative Service use only roads and parking lots and provide a condition assessment of each. This report summarizes the inventory for Cape Meares National Wildlife Refuge.All roads and parking lots were mapped using Trimble GPS units and visually assessed for condition using the RSL method of evaluation developed at Utah State University. A cost estimate for maintenance and construction of roads is provided in the report.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Multibeam collection for M33L1: Multibeam data collected aboard Meteor from 1995-09-22 to 1995-10-26, departing from Muscat, Oman and returning to Port Louis, Mauritius
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
This data set is part of a larger set of data called the MultiBeam Bathymetric Data Base (MBBDB) where other similar data can be found at http://maps.ngdc.noaa.gov/viewers/multibeam/
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Southwest Sciences proposes to develop innovative instrumentation for the rapid, 3-dimensional imaging of biological tissues with cellular resolution. Our approach is a variant of optical coherence tomography that will use a very small, low power and compact white light source to provide 2 micrometer or better image resolution. This device will enable NASA researchers to non-invasively study the structure of living, functioning tissues and cells. The instrumentation is based on a compact, low cost, low power white light source and can be designed for operation in spaced-based laboratories.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide background data for engineers, scientific, and other commercial and industrial activities. Hydrographic survey data primarily consist of water depths, but may also include features (e.g. rocks, wrecks), navigation aids, shoreline identification, and bottom type information. NOAA is responsible for archiving and distributing the source data as described in this metadata record.
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
Onemetersquare 1 meter x 1 meter benthic substrate at Necker Island, site P1 23.575N , 164.705W, between 56 and 57 meters along a permanent transect.
Published By Federal Laboratory Consortium
Issued over 9 years ago
Summary
Description
The SP5 is a laser scanning two-photon and confocal microscope equipped with multiple illumination sources, internal and external detectors, and spectral analysis system. The SP5 system can be used in variety of imaging modes including conventional confocal, multiphoton, differential interference contrast, phase contrast, darkfield, spectral, widefield transmission and widefield reflection modes. Specifications / Capabilities: * DM6000 upright body * motorized xy stage and galvo-z stage * 405 nm diode, Argon (458 nm, 476 nm, 488 nm, 514 nm), 561 nm diode, 633 nm HeNe, and tunable IR (680 nm - 1060 nm) lasers * 4 internal spectral detectors and 2 external non-descanned detectors (NDDs) * 8-channel acoustooptical tunable filter (AOTF) * immersion, dry and dipping objectives * coold CCD camera (Hamamatsu Orca AG) Scientific Opportunities / Applications: * 2D and 3D biological fluorescence imaging * nanoparticle imaging and spectral characterization * high resolution multi-color imaging * deep tissue imaging
WATER DEPTH and Other Data from G. M. DANNEVIG and Other Platforms from 19690102 to 19691231 (NODC Accession 7001416)
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide background data for engineers, scientific, and other commercial and industrial activities. Hydrographic survey data primarily consist of water depths, but may also include features (e.g. rocks, wrecks), navigation aids, shoreline identification, and bottom type information. NOAA is responsible for archiving and distributing the source data as described in this metadata record.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
ABSTRACT: NMC interpolated upper air condition data received from NESDIS
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
This data set includes non-Doppler polar volume reflectivity data from the Baltic Sea Experiment (BALTEX). Data were collected on Sweden's Gotland Island, using an Ericsson radar mounted at 56 m above sea level. The radar provided 12 scanning angles. Measurements were taken between 1 September 2002 and 31 May 2003. BALTEX data sets will be used for validation of AMSR-E and Advanced Microwave Sounding Unit (AMSU)/Humidity Sounder for Brazil (HSB) Level 1 brightness temperatures and Level 2 cloud and precipitation parameters. Data are available in network Common Data Format (netCDF) from NSIDC via FTP. The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) is a mission instrument launched aboard NASA's Aqua Satellite on 4 May 2002. The Baltic Sea Experiment's (BALTEX) Radar Data Centre (BRDC), operated by the Swedish Meteorological and Hydrological Institute (SMHI), collects data from as many radars in or near the Baltic region as possible. During the Main Observational Phase (October 1999 - February 2002), data from 25 radars in six countries have covered the Baltic region every 15 minutes. High-latitude data are recorded from 50 to 70 degrees North, and they complement pre-existing efforts in the mid-latitudes and tropics.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). These data will improve our understanding of global dynamics and processes occurring on the land, in the oceans, and in the lower atmosphere. MODIS is playing a vital role in the development of validated, global, interactive Earth system models able to predict global change accurately enough to assist policy makers in making sound decisions concerning the protection of our environment.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
International Electronic Machines (IEM), a leader in the development of innovative sensor solutions for transportation systems, will develop the Adaptive Rotorcraft Condition and Usage Tracking System (ARCUTS), building upon and integrating wireless instrumentation systems developed for the US Navy, CBM systems developed for the US Army, and condition and diagnostic sensing systems developed for other Federal, state, and commercial purposes. ARCUTS will combine wireless technologies with specifi
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
Onemetersquare 1 meter x 1 meter benthic substrate at Laysan Island, site P5 25.772N, 171.742 W, between 13 and 14 meters along a permanent transect.
Temperature profiles from MBT casts from the CAMPBELL from Ocean Weather Station C (OWS-C) in the North Atlantic Ocean from 21 February 1965 to 11 March 1965 (NODC Accession 6500029)
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
Bathythermograph data were collected from the CAMPBELL within a 1-mile radius of Ocean Weather Station C (5245N 0350W) and in transit. Data were collected by the United States Coast Guard from 21 February 1965 to 11 March 1965. The platform was equipped and staffed to observe weather and sea conditions. Data were processed by NODC to the NODC standard Universal Bathythermograph Output (UBT) format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/bt.html. The UBT file format is used for temperature-depth profile data obtained using the mechanical bathythermograph (MBT) instrument. The maximum depth of MBT observations is approximately 285 m. Therefore, MBT data are useful only in studying the thermal structure of the upper layers of the ocean. Cruise information, date, position, and time are reported for each observation. The data record comprises pairs of temperature-depth values. Temperature data in this file are recorded at uniform 5 m depth intervals.
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
Onemetersquare 1 meter x 1 meter benthic substrate at French Frigate Shoals, site P11 23.864N, 166.211W, between 38 and 39 meters along a permanent transect.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Automated measurements of CO2 exchange at the moss surface of NSA-OBS.
Biogeographic Characterization of Fish Communities within the Flower Garden Banks National Marine Sanctuary (2006 - 2007) (NODC Accession 0118358)
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
The overarching goal of this collaboration was to provide the Flower Garden Banks National Marine Sanctuary (FGBNMS) staff with information on biogeographic patterns within the Sanctuary. This specific project focused on the development of a plan to spatially and quantitatively characterize the fish communities in relatively shallow waters throughout the Sanctuary (<110 ft). This collaboration also included the initial implementation of that plan. The FGBNMS represents the northernmost tropical western Atlantic coral reef on the continental shelf and support the most highly developed offshore hard bank community in the region. The complexity of habitats supports a diverse assemblage of organisms including approximately 250 species of fish, 23 species of coral, and 80 species of algae in addition to large sponge communities. Understanding and monitoring these resources is critical to both sanctuary inventory and management activities. Monitoring of the biological communities has taken place at FGBNMS since the 1970s. This work has focused primarily on monitoring the benthos with video transects and photostations documenting transitions between coral, algae and sponge communities over time. Until relatively recently, little has been done to monitor or characterize the reef fish community. In 1994 the Reef Environmental Education Foundation (REEF) began surveys of the Sanctuary and utilized a combination of REEF personnel, volunteers, and Sanctuary staff to visually census reef fish populations via roving diver surveys. These surveys have been invaluable in terms of species list development and understanding the ranges of these species. Subsequently, a stationary point-count survey technique was utilized to begin to quantify community metrics such as species abundance and trophic structure at selected locations. These data provide an important starting point for characterizing the fish community; however, they are limited in scope of inference to small portions of the Sanctuary coral cap environment and are therefore difficult to utilize in developing population estimates at the scale of the Sanctuary.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
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Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
<p>Critically important inertia measurements are complex and expensive&nbsp;to obtain due to the extensive fixturing and custom instrumentation&nbsp;of conventional techniques. This research effort has validated a more&nbsp;efficient, less risky, and faster inertia measurement technique for&nbsp;aerospace vehicles. The dynamic inertia measurement method is based&nbsp;on conventional ground vibration testing methods, which are routinely&nbsp;performed in other types of aircraft testing. The basic concept is to&nbsp;compute the inertia properties and center-of-gravity location of an&nbsp;object by measuring all forces acting on the object and the rigid body&nbsp;motion caused by these forces.</p><p><strong>Work to date:</strong> All testing has been completed and two technical papers describing the results have been published. The DIM method was implemented to measure the mass properties of the test article, as were then the conventional pendulum oscillation methods, to compare results, level of effort, and costs. The DIM method showed favorable results for the center of gravity and moments of inertia;&nbsp;however, the products of inertia showed appreciable disagreement with analytical predictions.</p><p><strong>Looking ahead:</strong> he next project phase,&nbsp;testing on an aerospace vehicle, has not yet been funded.</p><p><strong>Partner: &nbsp;</strong>ATA Engineering, Inc. provided software and support for the&nbsp;testing.</p><p><strong>Benefits</strong></p><ul><li><strong>Less risky: </strong>Does not require the vehicle to&nbsp;be suspended, reducing risk and equipment&nbsp;needs</li><li><strong>Less expensive: </strong>Eliminates the complex&nbsp;and expensive fixturing and equipment used&nbsp;in conventional measurement techniques</li><li><strong>Faster:</strong> Dramatically decreases testing and&nbsp;approval times by weeks or even months</li></ul><p><strong>Applications</strong></p><ul><li>Airplanes and space vehicles (capsules and lifting body spacecraft)</li><li>Automobiles and other large terrestrial vehicles</li></ul><p>&nbsp;</p>
Real-time profile data assembled by Canada Department of Fisheries and Oceans (DFO) for the Global Temperature-Salinity Profile Program (GTSPP) and submitted on 8/23/2005 (NODC Accession 0002339)
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago