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- Creator:
- Lehman John T
- Description:
- Data were collected while developing a management plan for eliminating nuisance algal blooms in a chain of reservoirs along the Huron River in southeastern Michigan. Federal funding was provided by both the U.S. EPA and the USDA. The river-reservoir system is used for municipal drinking water, wastewater disposal, irrigation, industrial processes, hydroelectric generation, sport fishing, and recreation. The impoundments episodically developed surface scums of cyanobacteria, contained microcystin toxins, and emitted foul odors including hydrogen sulfide. Past management strategy had focused on external phosphorus loading but failed to prevent nuisance conditions. Data collection and analysis pointed to the overwhelming role of internal nutrient loading and resulted in a series of whole lake experiments that destratified Ford Lake during summer and eliminated the nuisance conditions.
- Keyword:
- Eutrophication, Limnology, and Nuisance Algae
- Citation to related publication:
- Ferris JA, Lehman JT. 2007. Interannual variation in diatom bloom dynamics: roles of hydrology, nutrient limitation, sinking, and whole lake manipulation. Water Res. 41:2551-2562., Ferris JA, Lehman JT. 2008. Nutrient budgets and river impoundments: Interannual variation and implications for detecting future changes. Lake Reserv Manage. 24:273-281., Goldenberg SZ, Lehman JT. 2012. Diatom response to the whole lake manipulation of a eutrophic urban impoundment. Hydrobiologia 691:71-80., Lehman EM, McDonald KE, Lehman JT. 2009. Whole lake selective withdrawal experiment to control harmful cyanobacteria in an urban impoundment. Water Res. 43:1187-1198., Lehman JT, Ferris JA, Platte RA. 2007. Role of hydrology in development of a vernal clear water phase in an urban impoundment. Freshwater Biol. 52:1773-1781., Lehman JT, Bell DW, McDonald KE. 2009. Reduced river phosphorus following implementation of a lawn fertilizer ordinance. Lake Reserv Manage. 25:307-312., Lehman JT. 2011. Nuisance cyanobacteria in an urbanized impoundment: Interacting internal phosphorus loading, nitrogen metabolism, and polymixis. Hydrobiologia 611:277-287., Lehman JT, Bell DW, Doubek JP, McDonald KE. 2011. Reduced additions to river phosphorus for three years following implementation of a lawn fertilizer ordinance. Lake Reserv Manage. 27:390-397. , Lehman JT, Doubek JP, Jackson EW. 2013. Effect of reducing allochthonous P load on alkaline phosphatase activity of phytoplankton in an urbanized watershed, SE Michigan, U.S.A. Lake Reserv Manage. 29:116-125., Lehman JT 2014. Understanding the role of induced mixing for management of nuisance algal blooms in an urbanized reservoir. Lake Reserv Manage. 30:1-9., and McDonald KE, Lehman JT. 2013. Dynamics of Aphanizomenon and Microcystis (cyanobacteria) during experimental manipulation of an urban impoundment. Lake Reserv Manage. 29:103-115.
- Discipline:
- Science
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- Creator:
- University of Michigan Museum of Paleontology and CTEES
- Description:
- Reconstructed CT slices for phalanx (pathological) of phytosaur (University of Michigan Museum of Paleontology catalog number UMMP VP 13838) as a series of TIFF images. Raw projections are not included in this dataset. The reconstructed slice data from the scan are offered here as a series of unsigned 16-bit integer TIFF images. The upper left corner of the first image (*_0000.tif) is the XYZ origin.
- Keyword:
- Paleontology, Fossil, CT, Phytosauria, UMMP, University of Michigan Museum of Paleontology, Triassic, and e06c6866-4cba-4532-2a68-d8e3357a674e
- Discipline:
- Science
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- Creator:
- University of Michigan Museum of Paleontology and CTEES
- Description:
- Reconstructed CT slices for Right innominate (acetabulum region) of Remingtonocetus domandaensis (University of Michigan Museum of Paleontology catalog number GSP-UM 3408) as a series of TIFF images. Raw projections are not included in this dataset. The reconstructed slice data from the scan are offered here as a series of unsigned 16-bit integer TIFF images. The upper left corner of the first image (*_0000.tif) is the XYZ origin.
- Keyword:
- Paleontology, Fossil, CT, Remingtonocetidae, UMMP, University of Michigan Museum of Paleontology, Eocene, and Geological Survey of Pakistan (GSP)
- Discipline:
- Science
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- Creator:
- Limon, Garrett C.
- Description:
- The data represents weekly output from three 60-year CAM6 model runs. The output includes state (.h0. files) and tendency (.h1. files) fields for three difference model configurations of increasing complexity. State fields include temperature, surface pressure, specific humidity, among others; while tendencies include temperature tendencies, specific humidity tendencies, as well as precipitation rates. Using the state variables at a given time step, machine learning techniques can be trained to predict the following tendency field, which can then be applied to the state variables to provide the state at the next physics time step of the model.
- Keyword:
- Machine Learning, Climate Modeling, and Physics Emulation
- Citation to related publication:
- Limon, G. C., Jablonowski, C. (2022) Probing the Skill of Random Forest Emulators for Physical Parameterizations via a Hierarchy of Simple CAM6 Configurations [Preprint]. ESSOAr. https://10.1002/essoar.10512353.1
- Discipline:
- Engineering and Science
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- Creator:
- Limon, Garrett C.
- Description:
- The work guides the processing of CAM6 data for use in machine learning applications. We also provide workflow scripts for training both random forests and neural networks to emulate physic s schemes from the data, as well as analysis scripts written in both Python and NCL in order to process our results.
- Keyword:
- Machine Learning, Climate Modeling, and Physics Emulation
- Citation to related publication:
- Limon, G. C., Jablonowski, C. (2022) Probing the Skill of Random Forest Emulators for Physical Parameterizations via a Hierarchy of Simple CAM6 Configurations [Pre Print]. ESSOAr. https://10.1002/essoar.10512353.1
- Discipline:
- Engineering and Science
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- Creator:
- Umana, Maria
- Description:
- Functional trait data from six species of trees widely distributed across an elevational gradient in El Yunque, Puerto Rico.
- Keyword:
- SLA, LA, leaf thickness, wood specific gravity, crown volume
- Citation to related publication:
- Umaña, M. N. In review. The interplay of drought and hurricanes on tree recovery: insights from dynamic and weak functional responses. Forthcoming
- Discipline:
- Science
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- Creator:
- Salaree, Amir, Spica, Zack, and Huang, Yihe
- Description:
- The items in this bundle are supporting videos to a study of subsea seismo-acoustics carried out regarding an earthquake in the Persian Gulf. The main data used in the study is a diver's recording of the acoustic waves from the earthquake. The epicenter and topography data used in this study are publicly available as cited in the README.txt file.
- Keyword:
- Seismo-acoustics, Persian Gulf, Divers’ Microphones, Seismic Hazard, Early Warning
- Discipline:
- Science
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- Creator:
- Kim, Wonhui, Ramanagopal, Manikandasriram Srinivasan, Barto, Charles , Yu, Ming-Yuan, Rosaen, Karl , Goumas, Nick , Vasudevan, Ram, and Johnson-Roberson, Matthew
- Description:
- PedX is a large-scale multi-modal collection of pedestrians at complex urban intersections. The dataset provides high-resolution stereo images and LiDAR data with manual 2D and automatic 3D annotations. The data was captured using two pairs of stereo cameras and four Velodyne LiDAR sensors.
- Citation to related publication:
- https://doi.org/10.48550/arXiv.1809.03605, https://github.com/umautobots/pedx, and http://pedx.io/
- Discipline:
- Engineering
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- Creator:
- Bradshaw, Lisa, Vernon, Julianne, Schmidt, Thomas, James, Timothy, Zhang, Jianzhi, Archbold, Hilary, Cadigan, Ken, Wolfe, John P., and Goldberg, Deborah E.
- Description:
- This is the experimental data referenced in our manuscript entitled "Influence of CUREs on STEM retention depends on demographic identities." The dataset comprises csv files with results from student surveys given to students enrolled in Biology 173 from Fall 2015 through Fall 2019 as well as institutional data of their course grades and cumulative GPA at the time they enrolled in Biology 173, and graduation and major data for student who had graduated by 2021. The survey questions used in the analysis and the IRB consent form are also included as pdfs.
- Keyword:
- undergraduate research, STEM retention, CURE, introductory biology laboratory, and education research
- Citation to related publication:
- Bradshaw, L., Vernon J., Schmidt T., James T., Zhang J., Archbold H., Cadigan K., Wolfe J.P. & Goldberg D. 2023. Research article: Influence of CUREs on STEM retention depends on demographic identities. J Microbiol Biol Educ (accepted)
- Discipline:
- Science
-
- Creator:
- Vani Archaeological Survey
- Description:
- Saqanchia is a level area on the northeastern outskirts of Vani, at the edge of the Phasis River plain (ca. 2 km north of the archaeological site). A substantial settlement was discovered here in the 1970s. Excavations supervised by V. Licheli revealed cobblestone foundations marking the complete outlines of two small buildings and the partial outlines of several others, local and imported ceramics, and terracotta figurines, all of which date the occupation of the area to the Hellenistic period. Saqanchia is currently a mixed use area, combining pasture land, holding ponds, small agricultural plots, a cemetery, and a number of Soviet-era industrial buildings, now mostly derelict with the exception of one operating saw mill. The derelict industrial buildings include a factory used for the production of sewing-machine parts, abandoned playing fields, likely associated with the factory, and two large greenhouses. The greenhouses were once supplied with natural hot sulphuric water, which still flows out of one operating spout in the area. In 2009 the survey project investigated the area using two methods of geophysical prospection, electrical resistivity and magnetic survey. In 2010 excavations were carried out in three trenches to investigate anomalies detected by geophysical prospection and to test the stratigraphy in the area of the excavations conducted by Licheli. In all cases, extensive modern disturbance had removed any stratified remains of earlier occupation, but large quantities of unstratified Hellenistic pottery and tile fragments were recovered. One well-preserved building, excavated in 1975-1976 and identified by the excavator as a complex comprised of two “dwelling-houses” (165 sq. m.), a “service-house” (32.86 sq. m), and a yard (346.5 sq m), may be described in detail. This structure is oblong in outline and oriented roughly north-south. Its exterior dimensions are 16.5 m x 10 m; both the exterior and the interior walls are 0.8 m wide. The “dwelling-house” portion of the building is divided into four rooms, symmetrically disposed across a central north-south wall. On the basis of the cobblestone foundations and tile fall, the excavator reconstructed a wattle and daub structure with timber framework and double-pitched roof of terracotta tiles sloping down in two directions from the central north-south wall. An additional suite of three rooms was attached to the north end of the four-room structure; the excavator called this a “service-house.” These rooms included two similar rooms, 3.5 x 3.4 m, 2.7 x 3.4 m, and a narrow room. 6.2 x 1.8 m. Between the “dwelling-house” and “service house,” the team excavated a garbage pit, 2.5 x 3 x 1 m deep, completely filled during the time the building complex was in use, with 3rd to mid-2nd century materials at the bottom. A pithos was found in the yard of the “dwelling-house,” 1.3 m deep, and a ditch was discovered in same area (3.7 m long, 0.7 m wide, and 0.3 deep) running in an east-west direction, turning to the north for a distance of 1.8 m, then a hard turn to the west for a length of 2.4 m long, when it was 0.8 m wide and 0.2 m deep. Traces of an earlier building of the late 3rd or early 2nd century BC were found under the pressed clay floor of one of the rooms of the “dwelling-house.” These remains included a thin layer of tiles, found just under the pressed clay floor, and poorly preserved building foundations. A tile structure found among these remains was interpreted by the excavator as a family altar concurrent with the earlier structure, but it may in fact have been a storage bin.
- Keyword:
- Hellenistic and Settlement
- Citation to related publication:
- Archaeological work at Saqanchia started with a discovery of chance finds in 1972. Archaeological research began in 1974 with the excavation of a test trench and the collection of surface materials. Additional small scale survey took place in 2008., Dundua, G. 1973. Sakartveloshi gavrtselebuli alexandre makedonelisa da lisimakes sakhelit motchrili monetebi vanidan. [The coins known from Georgia struck by the names of Alexander the Macedonian and Lysimmachus in Vani.] Matsne [Herald] no. 1, 1973: 51-65., Licheli, V. 1977. Akhalaghmochenili nakalakari saqhanchias velze [The recently found ancient site of the Saqanchia valley]. Vani III. Tbilisi. pp. 52-57, pls. 21-24. (In Georgian with a Russian summary.), Licheli, V. 1981a. Dzveli tseltaghritskhvis III-I saukuneebis shida kolkhetis materialuri kulturis shestsavlisatvis (saqhanchias namosakhlari) [Towards the study of the material culture of Inner Colchis in the 3rd-1st cent. B.C. (Saqanchia settlement)]. Matsne (Istoriis, arkeologiis, etnograpiis da khelovnebis istoriis seria) [Herald of the Academy of Sciences, Series of history, archaeology, ethnography and history of art)], N 2. Tbilisi. pp. 41-51. (In Georgia with a Russian summary.), Licheli, V. T. 1981b. Materialnaya kultura vnutrennei Kolkhidy III-II vv. do n. e. [Material culture of Inner Colchis in the 3rd-2nd cent. B.C.]. Avtoreferat dissertatsii na soiskaniye uchenoi stepeni kandidata istoricheskikh nauk [Synopsis of thesis to defend the scientific degree of candidate of historical sciences]. Tbilisi. 25 pp. (In Russian.), Licheli, V. 1982a. Saqanchias nakalakaris 1976 tsis gatkhrebis shedegebi (Gvianelinisturi sakhlis rekonstruktsia) [Results of excavations of the city site of Saqanchia in 1976 (restoration of a Late Hellenistic building)]. Arkeologiuri dziebani. Akhalgazrda mkvlevarta II da III sametsniero sesiis masalebi [Archaeological investigations. Materials of the 2nd and 3rd scientific sessions of young researchers]. Tbilisi. pp. 31-41. (In Georgian.), Licheli, V. T. 1982b. Torgovo-remeslennoye poseleniye II-II vv. do n. e. vo vnutrennei Kolkhide [A trade and artisan settlement of the 3rd-2nd cent. B.C. in Inner Colchis]. Materialy III Vsesoyuznogo simpoziuma po drevnei istorii Prichernomorya na temu: Ellinizm i Prichernomorye. Tskhaltubo, 21-27. V. 1982 g. Tezisy dokladov i soobshchenii [Materials of the 3rd All-Union symposium on the ancient history of the Black Sea littoral on the theme: “Hellenism and the Black Sea littoral.” Tsqaltubo, 21-27. V. 1982. Abstracts of reports and communications]. Tbilisi. pp. 54-55. (In Russian.), Licheli, V. 1983. Antikuri importi vansa dam is midamoebshi. Saqanchias namosakhlari [Classical import in Vaniand its environs. The Saqanchia settlement]. Vani VII. Tbilisi. pp. 113-125, pls. 50-51. (In Georgian with a Russian summary.), Licheli, V. T. 1985. Torgovo-remeslennoye poseleniye III-I vv. do n. e. vo vnutrennei Kolkhide [A trade and artisan settlement of the 3rd-2nd cent. B.C. in Inner Colchis]. Prichernomorye v epokhu ellinizma. Materialy III Vsesoyuznogo simpoziuma po drevnei istorii Prichernomorya. Tskhaltubo, 1982 [The Black Sea littoral in the Hellenistic times. Materials of the 3rd All-Union symposium on the ancient history of the Black Sea littoral. Tsqaltubo, 1982]. Tbilisi. pp. 468-473. (In Russian with an English summary.) , Licheli, V. 1991. Dzveli Vani. Sameurneo ubani [Ancient Vani. Industrial district]. Tbilisi. (In Georgian with summaries in Russian and English.), and Kharabadze, S. 2008. “Vanis Qveq’nis” Arqeologiuri Ruk’a (dzv.ts. VIII – akh.ts. III ss.). (Archaeological Map of the Vani Land, 8th Century BC – 3rd Century AD). Tsardgenilia Doqt’oris Ak’ademiuri Khariskhis Mosap’oveblad. Saqartvelos T’eqnik’uri Universit’et’i. Tbilisi, 0175, Saqartvelo. Seqt’emberi. p. 20. (In Georgian with an English summary.)
- Discipline:
- Social Sciences and Humanities