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3 results for “BARC”
The turbulent flow over the BARC rectangular cylinder: a DNS study
<p>This set of results stems from a database computed with a Direct Numerical simulation of the incompressible flow around a rectangular cylinder with chord-to-thickness ratio 5:1 (also known as BARC benchmark). The Reynolds number based on the cylinder thickness and the incoming velocity is set to Re=3000. We provide the two-dimensional mean field as well as the complete set of Reynolds stresses and the terms involved in their single-point budget equations. Further details can be found on an accompanying paper by Chiarini & Quadrio, Flow Turbul. Combust. 107, 875–899 (2021), available at https://doi.org/10.1007/s10494-021-00254-1.</p> <p>Data are provided in VTK file format, so that they can be visualized with several applications, as for example the open-source package ParaView.</p> <p>The file mean.vtk contains the mean flow in terms of the velocity components U and V and pressure field P in the x − y plane.<br> The files uu-Budget.vtk, vv-Budget.vtk, ww-Budget.vtk, uv-Budget.vtk, uw-Budget.vtk, vw-Budget.vtk and k-Budget.vtk contain the complete set of terms appearing in the budget equations for the components of the Reynolds stress tensor and for the turbulent kinetic energy.</p>
RELEASE-2022 and provisional data for NEON DP1.20264.001 at BARC, SUGG, CRAM, LIRO, PRLA, and PRPO
<p>NEON DP1.20264.001: Temperature at specific depth in surface water for BARC, SUGG, CRAM, LIRO, PRLA, and PRPO accessed on January 29, 2022 using the neonstore package on January 29, 2022. The following code was use to export the data from neonstore</p> <pre><code>neonstore::neon_export(archive = "neonstore.zip", product = "DP1.20264.001", table = "TSD_30_min-basic")</code></pre> <p>More information about the data product can be found here:<a href="https://data.neonscience.org/data-products/DP1.20264.001"> https://data.neonscience.org/data-products/DP1.20264.001</a></p> <p>The data include data from RELEASE-2022 and provisional data. The use of provisional data necessates the generation of this Zenado object to ensure reproducibility. </p> <p>Citations for data:</p> <p>NEON (National Ecological Observatory Network). Temperature at specific depth in surface water (DP1.20264.001). https://data.neonscience.org (accessed January 29, 2022)</p> <p>NEON (National Ecological Observatory Network). Temperature at specific depth in surface water, RELEASE-2022 (DP1.20264.001). https://doi.org/10.48443/g7bs-7j57. Dataset accessed from https://data.neonscience.org on January 29, 2022</p>
Airborne Multi-angle Imaging SpectroRadiometer (AirMISR) Data from the BARC 2001 Campaign
The AirMISR BARC 2001 data were acquired during a flight over the Beltsville Agricultural Research Center (BARC) on July 21, 2001. The Jet Propulsion Laboratory (JPL) in Pasadena, California provided the data. The Airborne Multi-angle Imaging SpectroRadiometer (AirMISR) is an airborne instrument for obtaining multi-angle imagery similar to that of the satellite-borne Multi-angle Imaging SpectroRadiometer (MISR) instrument, which is designed to contribute to studies of the Earth's ecology and climate. AirMISR flies on the NASA ER-2 aircraft. The Jet Propulsion Laboratory in Pasadena, California built the instrument for NASA. Unlike the satellite-borne MISR instrument, which has nine cameras oriented at various angles, AirMISR uses a single camera in a pivoting gimbal mount. A data run by the ER-2 aircraft is divided into nine segments, each with the camera positioned to a MISR look angle. The gimbal rotates between successive segments, such that each segment acquires data over the same area on the ground as the previous segment. This process is repeated until all nine angles of the target area are collected. The swath width, which varies from 11 km in the nadir to 32 km at the most oblique angle, is governed by the camera's instantaneous field-of-view of 7 meters cross-track x 6 meters along-track in the nadir view and 21 meters x 55 meters at the most oblique angle. The along-track image length at each angle is dictated by the timing required to obtain overlap imagery at all angles, and varies from about 9 km in the nadir to 26 km at the most oblique angle. Thus, the nadir image dictates the area of overlap that is obtained from all nine angles. A complete flight run takes approximately 13 minutes. The 9 camera viewing angles are: 0 degrees or nadir 26.1 degrees, fore and aft 45.6 degrees, fore and aft 60.0 degrees, fore and aft 70.5 degrees, fore and aft. For each of the camera angles, images are obtained at 4 spectral bands. The spectral bands can be used to identify vegetation and aerosols, estimate surface reflectance and ocean color studies. The center wavelengths of the 4 spectral bands are: 443 nanometers, blue 555 nanometers, green 670 nanometers, red 865 nanometers, near-infrared Two types of AirMISR data products are available - the Level 1 Radiometric product (L1B1) and the Level 1 Georectified radiance product (L1B2).
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