Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
The Oregon Department of Geology & Mineral Industries (DOGAMI) contracted with Watershed Sciences, Inc. to collect high resolution topographic lidar data for multiple areas within the State of Oregon. The areas for lidar collection have been designed as part of a collaborative effort of state, federal, and local agencies in order to meet a wide range of project goals. The Camp Creek study area was collected August 19 - 27, 2008 and covers a portion of eastern Grant County. The total flown area covers 320 square miles, or 205,250 acres. This data set consists of bare earth and unclassified points. There are approximately 8 points per square meter over terrestrial surfaces. In some areas of heavy vegetation or forest cover, there may be relatively few ground points in the lidar data. Elevation values for open water surfaces are not valid elevation values because few lidar points are returned from water surfaces. Lidar intensity values were also collected.
Published By Department of Veterans Affairs
Issued over 9 years ago
Summary
Description
The Automated Safety Incident Surveillance and Tracking System (ASISTS) is a repository of Veterans Health Administration (VHA) employee accident data. Many types of accidents are captured, but the primary focus of the ASISTS database is to track and to report on employee exposures to blood borne pathogens through needlesticks, sharps and body fluids. Accident data is captured locally at medical centers using the Veterans Health Information Systems and Technology Architecture (VistA) ASISTS package. Federal Employee Compensation claims are transmitted electronically in order to provide efficient and timely submission to the Department of Labor, Office of Workers' Compensation Programs; and to ensure that the Occupational Safety and Health Administration's (OSHA) Log of Work-Related Injuries and Illnesses is maintained. On a daily basis the Federal Employee Compensation claims are transmitted by Electronic Data Interchange extraction. A weekly download of the accident reports are sent to the national database using MailMan messages. On a monthly basis, extracts are sent to the ASISTS central repository located at the Austin Information Technology Center. The VHA Support Service Center (VSSC) provides multiple customized reports on the VSSC Web portal available on the VA Intranet. The primary users of ASISTS include OSHA, VA Headquarters, the VISN Directors, and occupational safety and health professionals located at each VA medical facility.
Published By US Agency for International Development
Issued over 9 years ago
Summary
Description
A part of the 2014 round of public opinion surveys implemented by LAPOP, the Guatemala survey was carried out between April 1st and May 10th of 2014. It is a follow-up of the national surveys since 1992. The 2014 survey was conducted by Vanderbilt University and Asociation de Investigacion y Estudios Sociales (ASIES). The 2014 AmericasBarometer received generous support from many sources, including USAID, UNDP, IADB, Vanderbilt U., Princeton U., Université Laval, U. of Notre Dame, among others.
Drifting buoy data observed during 2014 and assembled by the Responsible National Oceanographic Data Center (RNODC) for Drifting Buoy Data (NODC Accession 0126576)
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Published By Federal Emergency Management Agency, Department of Homeland Security
Issued over 9 years ago
Summary
Description
The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual- chance flood event, and areas of minimal flood risk. The Floodplain Mapping/Redelineation flood risk boundaries are derived from the engineering information Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA).
Published By Department of Agriculture
Issued over 9 years ago
Summary
Description
GIPSA Livestock and Meat Marketing Study Final Reports (February 2007). In fiscal year 2003, GIPSA received $4.5 million in appropriations to study marketing practices in the whole livestock and red meat industry. In June 2004, at the end of a competitive bidding process, GIPSA awarded a $4.3 million contract to the RTI International (RTI) to conduct the study. RTI delivered an interim report in July 2005. The interim report described alternative marketing arrangements (AMAs), common terms in AMAs, and why industry participants used them. In February 2007, GIPSA released the final report. The final report included results from RTI’s analysis of the extent of use, price relationships, and costs and benefits of AMAs.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
ABSTRACT: This data set contains two ASCII files (.txt format). One file provides ground-based biophysical measurements and above-ground net primary productivity (ANPP) estimates for 31 black spruce (Picea mariana) and 30 quaking aspen (Populus tremuloides) stands in Superior National Forest (SNF) in northeastern Minnesota, U.S.A. (-92 W 48 N). The measurements were obtained during a 1983-1984 intensive field campaign. Non-destructive measurements were made in over 100 forest plots covering a 50 x 50 km area. Sacrificed trees for biomass and annual increment measurements were taken outside the plots. The second file provides climate data from nearby weather stations for the period 1976-1986.The data set provides stand structural measurements (diameter at breast height, tree height, crown depth, and stem density), above-ground biomass, leaf area index, bark area index, and ANPP estimates. ANPP data are based on a combination of allometric relationships and annual tree-ring (radial) increments for the 5-year period 1979-1983.In the spruce stands, above-ground biomass ranged from 700-15,100 g/m2, LAI varied between 0.5-4.3, and ANPP ranged from 39-572 g/m2/yr. In comparison, above-ground biomass among aspen stands ranged from 600-22,000 g/m2, LAI varied between 1.3-4.0, and ANPP ranged from 213-1,199 g/m2/yr.The purpose of the SNF campaign was to investigate the ability of remote sensing to provide estimates of ecosystem biophysical properties. In addition to the results presented herein, satellite, aircraft, and helicopter observations and other ground measurements for the study sites are available from the ORNL DAAC Superior National Forest (SNF) Project web site [http://daac.ornl.gov/SNF/snf.shtml].
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
MODIS/Aqua Surface Reflectance Daily L2G Global 1km and 500m SIN Grid
Published By US Agency for International Development
Issued over 9 years ago
Summary
Description
CakePHP-based application to track information about Development Leadership Initiative and their postings. This is restricted to HR and DLI staff.
Published By Department of Commerce
Issued over 9 years ago
Summary
Description
This tool provides data on exports of goods from major U.S. metropolitan areas, as defined by the Bureau of the Census. These data are based on an Origin of Movement (OM) Zip-code-based series, and are therefore not comparable with an OM state-based series, like that available from TradeStats Express.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and modeling efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunami generation, propagation, and inundation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Grid spacings for the DEMs range from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
The Master Plan developed for Minnesota Valley National Wildlife Refuge proposed that a refuge administration office and maintenance facility be located on an upland area on the south side of the WilkieRice Lake Unit. This area was selected because of its central location in the refuge and because the area was believed to be one of the few within the designated boundary in the Valley out of the 100year floodplain. A specific site was not selected because of the unknown location of the future Highway 18 river crossing. A secondary and unstated reason for locating the administrative headquarters in that area was in response to a Scott CountyShakopee request that a facility be located in Scott County to offset the proposal for a major Wildlife Interpretation and Education Center in east Bloomington, Minnesota. In other words, the county and city leaders wanted some sort of facility at their end of the refuge, preferably a visitor facility.
Published By U.S. Geological Survey, Department of the Interior
Issued over 9 years ago
Summary
Description
This part of SIM 3281 presents data for the geologic and geomorphic map (see sheet 10, SIM 3281) of the Offshore of Santa Barbara map area, California. The vector data file is included in "Geology_OffshoreSantaBarbara.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshoreSantaBarbara/data_catalog_OffshoreSantaBarbara.html. The offshore part of the map area largely consists of a relatively shallow (less than 75 m deep), gently offshore-dipping (less than 1 degree) shelf underlain by sediments derived primarily from relatively small coastal watersheds that drain the Santa Ynez Mountains. Shelf deposits are primarily sand (unit Qms) at water depths less than about 35 to 50 m and, at depths greater than about 35 to 50 m, are the more fine-grained sediments (very fine sand, silt, and clay) of unit Qmsf. The boundary between units Qms and Qmsf is based on observations and extrapolation from sediment sampling (see, for example, Reid and others, 2006) and camera ground-truth surveying (see sheet 6). It is important to note that the boundary between units Qms and Qmsf should be considered transitional and approximate and is expected to shift as a result of seasonal- to annual- to decadal-scale cycles in wave climate, sediment supply, and sediment transport. Coarser grained deposits (coarse sand to boulders) of unit Qmsc, which are recognized on the basis of their high backscatter and, in some cases, their moderate seafloor relief (sheets 1, 2, 3), are found most prominently in a large (about 0.75 km2) lobe that is present from about 1,800 to 3,600 m offshore of the mouth of Arroyo Burro, in water depths of about 36 to 65 m. The lobe is inferred to consist of coarse-grained sediment (coarse sand to boulders) that is resistant to erosion. Although these coarse-grained deposits almost certainly are derived from Arroyo Burro, the lobe could represent either the underflow deposits of late Holocene floods or a relict geomorphologic feature, having been deposited in shallower marine deltaic (or even alluvial?) environments at lower sea levels in the latest Pleistocene and early Holocene. Unit Qmsc also is present in shallower water (depths of about 10 to 20 m), most notably in a small area (approximately 0.09 km2) that extends offshore from Montecito Creek, in the eastern part of the map area. The presence of coarser grained sediment (coarse sand and possibly gravel) also is inferred in shallower water (depths of 10 to 20 m) offshore from Arroyo Burro, but these deposits are mapped as unit Qmss because they are found within arcuate scour depressions that have been referred to as "rippled scour depressions" (see, for example, Cacchione and others, 1984; Phillips, 2007) or "sorted bedforms" (see, for example, Murray and Thieler, 2004; Goff and others, 2005; Trembanis and Hume, 2011). Although the general area in which Qmss scour depressions are found is not likely to change substantially, the boundaries of the unit(s), as well as the locations of individual depressions and their intervening flat sand sheets, likely are ephemeral, changing during significant storm events. Hydrocarbon-seep-induced topography, which is present most prominently along the axis of anticlines, includes many features (described by Keller and others, 2007) along the trend of the Mid-Channel Anticline, about 10 km south of the map area in the Santa Barbara Channel. Geologic map units associated with hydrocarbon emissions in the map area include grouped to solitary pockmarks (unit Qmp) and asphalt (tar) deposits (unit Qas), as well as areas of undifferentiated hydrocarbon-related features (unit Qhfu) that probably include a mix of mounds, mud volcanoes, pockmarks, carbonate mats, and other constructional and erosional "seabed forms" (see Keller and others, 2007), all of which are superimposed on consolidated, undivided Miocene and Pliocene bedrock (unit Tbu). Offshore bedrock exposures are assigned to the Miocene Monterey Formation (unit Tm) and to the undivided Miocene and Pliocene bedrock unit (Tbu), primarily on the basis of extrapolation from the onland geologic mapping of Minor and others (2009), as well as the geologic cross sections of Redin (2005). These cross sections, which are constrained by industry seismic-reflection data and petroleum well logs, suggest that a considerable part of the undivided bedrock unit may belong to the Pliocene and Pleistocene Pico Formation. Bedrock is, in some places, overlain by a thin (less than 1 m?) veneer of sediment, recognized on the basis of high backscatter, flat relief, continuity with moderate- to high-relief bedrock outcrops, and (in some cases) high-resolution seismic-reflection data; these areas, which are mapped as composite units Qms/Tbu or Qms/Tm, are interpreted as ephemeral sediment layers that may or may not be continuously present, depending on storms, seasonal and (or) annual patterns of sediment movement, or longer term climate cycles. The Santa Barbara Channel region, including the map area, has a long history of petroleum production (Barnum, 1998). The Monterey Formation is the primary petroleum-source rock in the Santa Barbara Channel, and the Pico Formation is one of the primary petroleum reservoirs. The bedrock units typically are exposed in structural highs that include uplifts associated with the partly blind(?), south-dipping Rincon Creek Fault Zone and the outer shelf anticlinal uplift that developed above the south strand of the Red Mountain Fault in the southwestern part of the map area. The Offshore of Santa Barbara map area is in the Ventura Basin, in the southern part of the Western Transverse Ranges geologic province, which is north of the California Continental Borderland (Fisher and others, 2009). This province has undergone significant north-south compression since the Miocene, and recent GPS data suggest north-south shortening of about 6 mm/yr (Larson and Webb, 1992). The active, east-west-striking Red Mountain and Rincon Creek Faults and their related folds are some of the structures on which this shortening occurs. This fault system, in aggregate, extends for about 100 km through the Ventura and Santa Barbara Basins and represents an important earthquake hazard (see, for example, Fisher and others, 2009). Very high uplift rates of onland marine terraces from More Mesa (2.2 mm/yr), in the western part of the map area, to Summerland (0.7 mm/yr), a few kilometers east of the map area, are further indication of rapid shortening in this region (Keller and Gurrola, 2000). References Cited: Barnum, H.P., 1998, Redevelopment of the western portion of the Rincon offshore oil field, Ventura, California, in Kunitomi, D.S., Hopps, T.E., and Galloway, J.M., eds., Structure and petroleum geology, Santa Barbara Channel, California: American Association of Petroleum Geologists, Pacific Section, and Coast Geological Society, Miscellaneous Publication 46, p. 201-215. Cacchione, D.A., Drake, D.E., Grant, W.D., and Tate, G.B., 1984, Rippled scour depressions of the inner continental shelf off central California: Journal of Sedimentary Petrology, v. 54, p. 1,280-1,291. Dibblee, T.W., Jr., 1986a, Geologic map of the Carpinteria quadrangle, Santa Barbara County, California: Santa Barbara, Calif., Dibblee Geological Foundation Map DF-04, scale 1:24,000. Dibblee, T.W., Jr., 1986b, Geologic map of the Santa Barbara quadrangle, Santa Barbara County, California: Santa Barbara, Calif., Dibblee Geological Foundation Map DF-06, scale 1:24,000. Fisher, M.A., Sorlien, C.C., and Sliter, R.W., 2009, Potential earthquake faults offshore southern California from the eastern Santa Barbara channel to Dana Point, in Lee, H.J., and Normark, W.R., eds., Earth science in the urban ocean--The Southern California Continental Borderland: Geological Society of America Special Paper 454, p. 271-290. Goff, J.A., Mayer, L.A., Traykovski, P., Buynevich, I., Wilkens, R., Raymond, R., Glang, G., Evans, R.L., Olson, H., and Jenkins, C., 2005, Detailed investigations of sorted bedforms or "rippled scour depressions," within the Martha's Vineyard Coastal Observatory, Massachusetts: Continental Shelf Research, v. 25, p. 461-484. Keller, E.A., Duffy, M., Kennett, J.P., and Hill, T., 2007, Tectonic geomorphology and hydrocarbon potential of the Mid-Channel anticline, Santa Barbara Basin, California: Geomorphology, v. 89, p. 274-286. Keller, E.A., and Gurrola, L.D., 2000, Final report, July, 2000--Earthquake hazard of the Santa Barbara fold belt, California: NEHRP Award #99HQGR0081, SCEC Award #572726, 78 p., available at http://www.scec.org/research/98research/98gurrolakeller.pdf. Larson, K.M., and Webb, F.H., 1992, Deformation in the Santa Barbara Channel from GPS measurements 1987-1991: Geophysical News Letters, v. 19, p. 1,491-1,494. Minor, S.A., Kellogg, K.S., Stanley, R.G., Gurrola, L.D., Keller, E.A., and Brandt, T.R., 2009, Geologic map of the Santa Barbara coastal plain area, Santa Barbara County, California: U.S. Geological Survey Scientific Investigations Map 3001, scale 1:25,000, 1 sheet, pamphlet 38 p., available at http://pubs.usgs.gov/sim/3001/. Murray, B., and Thieler, E.R., 2004, A new hypothesis and exploratory model for the formation of large-scale inner-shelf sediment sorting and "rippled scour depressions": Continental Shelf Research, v. 24, no. 3, p. 295-315. Phillips, E., 2007, Exploring rippled scour depressions offshore Huntington Beach, CA: Santa Cruz, University of California, M.S. thesis, 58 p. Redin, T., 2005, Santa Barbara Channel structure and correlation sections--Correlation Section no. 34A, Summerland area, Santa Ynez Mountains, across the east central Santa Barbara Channel to the China Bay area, Santa Cruz Island: American Association of Petroleum Geologists, Pacific Section, Publication CS 34A, 1 sheet. Reid, J.A., Reid, J.M., Jenkins, C.J., Zimmerman, M., Williams, S.J., and Field, M.E., 2006, usSEABED--Pacific Coast (California, Oregon, Washington) offshore surficial-sediment data release: U.S. Geological Survey Data Series 182, available at http://pubs.usgs.gov/ds/2006/182/. Trembanis, A.C., and Hume, T.M., 2011, Sorted bedforms on the inner shelf off northeastern New Zealand--Spatiotemporal relationships and potential paleo-environmental implications: Geo-Marine Letters, v. 31, p. 203-214. Weber, K.M., List, J.H., and Morgan, K.L., 2005, An operational Mean High Water datum for determination of shoreline position from topographic lidar data: U.S. Geological Survey Open-File Report 2005-1027, available at http://pubs.usgs.gov/of/2005/1027/.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
Puerto Rico maximum monthly precipitation
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
This proposal responds to the request for pumps for pressure-fed propulsion systems with a pistonless pump wherein a pressurant act directly on the propellant(s) in a set of pump chambers. The pump system will work for both in-space and spacecraft descent and ascent systems, and it is applicable to nanosat launch vehicle (NLV) technologies as well. When integrated into a full propulsion system, this pump will increase payload mass fraction, reliability, safety, and operating flexibility. The same pump can be used for the main engine, attitude control thrusters, and fuel transfer, since the pump provides variable pressure at variable flow without using extra consumables. The pistonless design avoids sliding seals, which can cause problems for piston pumps. No precision components are needed, and all active components can be redundant and/or contamination-tolerant. For space transportation or launch vehicle systems with liquid/supercritical helium and/or multi-stage autogenous pressurization, "system Isp" including pressurant and tank mass can be intermediate between gas-generator and staged combustion turbopump systems, but at much lower cost and complexity than with either of those types. The pump has already been designed, built and tested under lab conditions, pumping kerosene, liquid nitrogen and water. The performance improvements due to inclusion of the pump in various systems have already been analyzed. The purpose of this SBIR is to bring the pistonless pump technology up to a TRL 5 level and integrate it into a nanosat launch vehicle. The work to be done consists of designing, building and testing pump features for operation under vibration, acceleration and reduced absolute pressure environments. The pump will then be integrated into a prototype NLV first stage and a full duration ground test will be conducted. If the budget is sufficient, we will conduct a flight test to 50,000 ft. The flight test pump and data will be delivered to NASA
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and modeling efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunami generation, propagation, and inundation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Grid spacings for the DEMs range from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).
Published By Federal Emergency Management Agency, Department of Homeland Security
Issued over 9 years ago
Summary
Description
The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
This document contains graphs and tables summarizing rainfall totals on St. Vincent National Wildlife Refuge between September and October of 1993.
Published By U.S. Geological Survey, Department of the Interior
Issued over 9 years ago
Summary
Description
This is a polygon coverage of 104th Congressional District boundaries obtained from the U.S. Bureau of the Census. The 103rd Congress was the first Congress that reflected the reapportionment and delineation of congressional districts based on the 1990 census. The next (104th) Congress reflects redelineation of districts that occurred for six states: Georgia, Louisiana, Maine, Minnesota, South Carolina, and Virginia. Congressional Districts U.S. House of Representatives Census TIGER/Line Files
Published By Federal Emergency Management Agency, Department of Homeland Security
Issued over 9 years ago
Summary
Description
This is a revised preliminary to case 11-03-1438S, adding 11.3 miles of new Zone AE study on Allegheny River and updating a 2.75 mile Zone AE detailed study on Redbank Creek. Hydrology data includes spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating flood discharges for the flood insurance study. (Source: FEMA Guidelines and Specs, Draft Appendix M)
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
This proposed work will develop a new method and mechanism for generating wing stroke motion of any shape and orientation. The mechanism will provide power, lift and flight control to small aircraft in a single integrated unit. The key innovation is the means by which wing motion is generated without the use any complex mechanical components. Wing motion of any shape and orientation can be generated with this mechanism. The arrangement of wings is such that the mechanism is mechanically balanced and exerts no net torque or force on the aircraft. This method is applicable to small UAVs (uninhabited aerial vehicles) and will provide them with a simple and reliable means of producing power, lift and flight control. The versatility of this mechanism is expected to provide UAVs with high maneuverability. This method will be most valuable for UAVs that are used as planetary aircraft as well as for general surveillance and reconnaissance.
A Light Weight, Mini Inertial Measurement System for Position and Attitude Estimation on Dynamic Platforms Project
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Impact Technologies, LLC in collaboration with the Rochester Institute of Technology, proposes to develop an innovative and revolutionary method for a miniature low cost, weight, and power, highly accurate INS system coupled with GPS receivers providing stable and highly accurate positioning, attitude, and inertial measurements while being subjected to highly dynamic maneuvers. In contrast to conventional methods that utilize extensive ground-based real-time tracking and control units that are expensive, large, and require excessive amounts of power to operate, our method focuses on the development of a highly-accurate attitude estimator that makes use of a low cost, miniature accelerometer array fused with traditional measurement systems and GPS. Through the utilization of a position tracking estimation algorithm, on-board accelerometers are numerically integrated and transformed using attitude information to obtain an estimate of position in the inertial frame. Position and velocity estimates are subject to drift due to accelerometer sensor bias and high vibration over time, and therefore require the integration with GPS information using a Kalman filter to provide highly accurate and reliable inertial tracking estimations. The development of such technology is required for the enablement of the proposed highly accurate attitude estimator that is a primary focus of this proposed work.
Evaluation of contaminants in water, sediments and fish of the Wallkill River National Wildlife Refuge
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
This study was conducted to more completely characterize the nature, extent and potential impacts of contaminants on aquatic biota of the Wallkill River NWR and to assess the significance of the presence of contaminants to refuge management. The study was designed with three objectives that would assist the refuge manager and, if indicated, help to focus further study. These objectives are: 1 determine the nature and extent of chemical contaminants suspected of being present on the Wallkill River NWR; 2 evaluate the bioavailability and toxic effects of identified contaminants on biota through residue analysis and bioassessment techniques; and, 3 evaluate spatial and temporal trends to determine which, if any, contaminants continue to enter the system.
Published By U.S. Geological Survey, Department of the Interior
Issued over 9 years ago
Summary
Description
The color Hawaii shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of Hawaii at a resolution of 200 meters. The NED is a raster product assembled by the U.S. Geological Survey, designed to provide national elevation data in a seamless form with a consistent datum, elevation unit, and projection. Data corrections made in the NED assembly process minimize artifacts, permit edge matching, and fill sliver areas of missing data. The National Atlas also includes a Lambert Azimuthal Equal Area projection shaded relief file; this file is the same data in an Albers projection.
Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued over 9 years ago
Summary
Description
In support of geologic mapping and hazards evaluation in and near Whittier, Alaska, the Division of Geological and Geophysical Surveys (DGGS) acquired, and is making publicly available, lidar (light detection and ranging) data for an area along Passage Canal, Portage Lake, and Portage Glacier Highway. The lidar data, acquired between 21 - Oct 25 2013, was processed by Watershed Sciences, Inc. (WSI) and consists of continuous coverage encompassing an area extending from Portage Lake eastward to Logging Company Bay in Passage Canal in the Seward D-4, D-5, and D-6 1:63,360-scale quadrangles. Lidar data collected below 1,600 ft (488 m) elevation have a minimum average pulse density of 8 pulses/square meter; above 1,600 ft (488 m) data were collected with an average pulse density of at least 4 pulses/square meter. Following lidar data collection and processing by WSI and their survey subcontractor, McClintock Land Associates, WSI submitted the data to the State of Oregon Department of Geology and Mineral Industries (DOGAMI) for independent quality control analysis. After addressing any concerns from DOGAMI, WSI submitted the revised dataset to DGGS along with a technical report describing details about the lidar acquisition, accuracy, and quality. DOGAMI also provided a separate report summarizing their methodologies and the results of quality control checks. The following data classifications are available for download from the NOAA Digital Coast: 1 (Unclassified) 2 (Ground) 3 (Low Vegetation) 4 (Medium Vegetation) 6 (Buildings) 7 (Low Point/Noise) 9 (Water Surface) 10 (Ignored Ground - Ground points within 1 m of breaklines) 14 (Withheld - Points that have intensity values of 0 or 255) 15 (Mobile - Temporary Placed Structures (cars, boats, docks, buoys)) 16 (Utilities - Man made non-habitable structures (fences, power lines))