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Topographic and bathymetric lidar, orthophotos, sonar, and GPR data of and along the Devils River from Juno to Lake Amistad, Texas (Imagery 05 of 16)
Data collected in and along the Devils River from Juno to Lake Amistad, Texas include: Topographic and bathymetric lidar data in both 1m raster (BIL) and point (LAS) formats; Orthophotos in geoTiff format; and an index map (SHP) depicting data extents. For an area of more detailed study--a pool two kilometers long from Finnegan Springs to Dolan Falls--we're providing Sonar and GPR point (LAS) data and a 1m composite (lidar + GPR) raster (BIL) dataset. 0README.txt provides additional information
Cretaceous collision reconciles western North American tectonics with deep mantle slabs
VTK files that accompany the manuscript "Cretaceous collision reconciles western North American tectonics with deep mantle slabs". The files are for the "Cretaceous Collision" and "Jurassic Collision" reconstructions and can be viewed using the open-source Paraview software
Dynamics of Physical and Chemical Parameters in a Laboratory River Corridor (Flume)
This dataset contains temperature and pH data collected at 30-minute intervals during experiments performed in a water recirculating flume.
The flume simulated a river. The flume contained sediment and water. The flume had the following parameters: 7m(L)x0.3m(W) with 5m(L)x0.3m(W)x0.7m(H) sediment bed, a 0.12m channel above the sediment, and nine 0.45m(L) consecutive bedforms with 0.07m crests. Surface flow velocity = 1.1 cm/s. Sand permeability = 1.25e-09 m^2.
The temperature was monitored using a set of thermistors (Onset, HOBO). The dataset includes:
- Air temperature at 4cm and 20cm above water, and water temperature in the channel at the sediment-water interface
- Porewater temperatures at 10cm, 20cm, 40cm, and 60cm depths
The pH was monitored using YSI Exo-3 sonde (YSI Inc. / Xylem Inc. Yellow Spring Ohio, USA) positioned in the flume channel. Changes in pH were induced by short, 24 hour additions of dry leaves to the flume channel
Turbulent Pipe Flow at Re_\tau=2000
Turbulent pipe flow dataset at Re=2000
NOTE: before publication, please check here for any updates to the data
Replication Data for: Investigating the Martian Surface at Decametric Scale: Population, Distribution and Dimension of Hetereogeneities from Radar Statistics
Building on one decade of theory and methodology maturation, we investigate the coherent and incoherent components of the response of the Martian surface to nadir-looking orbital radar. We apply a reflectometry technique known as radar statistical reconnaissance to Mars Reconnaissance Orbiter Shallow Radar data over a test region with a large dynamic range in echo strength. This technique provides a set of statistical parameters describing the heterogeneity of the surface and near-surface structure, presumably at a scale of 15~m. We discuss the physical meanings of these parameters related to surface and near-surface properties.
Most (but not all) investigated terrains have a dominantly coherent surface return, a characteristic that is not necessarily indicative of a smooth surface. The observed behavior of the coherent and incoherent power components of the echo matches signal growth with increasing surface roughness. This finding allows us to identify smooth and level terrains that we use as a reference to approximate the surface height and slope variations of other regions from the Integral Equation Model, a classical surface backscattering formulation. Nearly systematic mismatches between the SHARAD and MOLA-pulse-width roughness advocate for the use of self-affine backscattering models whose parameterization accounts for roughness variations at different scales.
Our methodology provides a wealth of surface properties assessment based on radar scattering with quasi-global coverage, without a dependence on other data, and at a decametric horizontal scale relevant to sub-regional geology investigation and landing site reconnaissance
Dotación para las fiestas anuales de la Virgen de los Dolores en el Convento de San Diego de México, 1702 noviembre 20
Carta notarial que especifica la donación de dinero por parte de Doña Juana de Luna y Arellano, Mariscala de Castilla, bisabuela Séptima Condesa y viuda de Theobaldo de Gorraez Beumont y Navarra, al Convento de San Diego de la Ciudad de México de los franciscanos descalzos para la celebración anual de la fiesta de la Virgen de los Dolores. La escritura especifica la forma en que se ha de llevar a cabo la celebración y las misas que se le deben dedicar después de su muerte. El provincial de los franciscanos descalzos, fray Pedro Antonio de Aguirre, aceptó la donación en nombre del convento. —— Notarized letter specifying the donation of money Doña Juana de Luna y Arellano, Marshal of Castile, great-grandmother Seventh Countess, and widow of Theobaldo de Gorraez Beumont y Navarra, made to the Discalced Franciscan Convent of San Diego in Mexico City for the annual celebration of the feast of the Virgen de los Dolores. The document specifies the way in which the celebration is to be carried out and the masses that should be dedicated to her after her death. Discalced Franciscan Provincial Fray Pedro Antonio de Aguirre accepted the donation on behalf of the convent. Extent: 6 f. (12 p.
Data Archive for: Goudge et al., Assessing controls on the incomplete draining of martian open-basin lakes.
This repository contains the model scripts used for Goudge et al. "Assessing Controls on the Incomplete Draining of Martian Open-Basin Lakes". This modeling approach is a modification of the approach initially outlined by Fassett and Goudge (2021, doi: 10.1029/2021JE006979). The original modeling approach scripts are available here: https://github.com/cfassett/ANUGA-erosion