search for: oceanograph

R 1.8.0 on Windows XP Professional. A huge THANK YOU to the R Team for this marvelous software. I am making lattice plots of oceanographic data. The usual layout does not conform to plotting conventions that marine scientists use when depth is the independent variable. Under those conventions, plots are made with the origin at the upper left, depth on the vertical axis (increasing as it goes down), and the dependent variable o...

...also has demonstrated interest and experience in advanced spatial analysis, is being sought for a full-time contract position with the National Oceanic and Atmospheric Administration?s (NOAA) National Centers for Coastal Ocean Science (NCCOS). NCCOS? Biogeography Branch conducts ecological and oceanographic studies to map, characterize, assess, and model the spatial distributions and movements of marine organisms across habitats throughout the United States and Island Territories. We are seeking an individual with a broad suite of quantitative, statistical, and computational skills. A strong bac...

Dear Rcommunity, I hope this email finds you well. I am writing to seek your assistance with a data visualization problem I am facing while working with R. Problem Description: I have a dataframe named "df" containing the following columns: "longitude", "latitude", "sea_currents_mag", and "sea_currents_direction". The dataframe includes sea

System info: Red Hat 9.0 R Version 1.8.0 ESS 5.1.21 Emacs 21.2.1 ------------------- Hello I've been working with Paul Murrell here in New Zealand to develop plots of temperature and density profiles at 22 stations spanning a frontal zxone, and then overlaying the isothermal and mixed layer depths (similar to Kara et al. 2003 JGR Oceans 108(C3) pg. 24-5, figure 2). Paul Murrell has a

...jor 1 minor 8.0 year 2003 month 10 day 08 language R -- William Carlisle Thacker Atlantic Oceanographic and Meteorological Laboratory 4301 Rickenbacker Causeway, Miami, Florida 33149 USA Office: (305) 361-4323 Fax: (305) 361-4392 "Too many have dispensed with generosity in order to practice charity." Albert Camus

Colleagues ---------------------------------- System info: R version rw1022 on NT ESS v. 5.1.18 using emacs ver. 20.4 ---------------------------------- As recommended, I keep separate directories for projects, but also use separate sub-directories for types of data (e.g. different oceanographic instruments) within projects. My problem is that I often need to access the objects and data (not stored as objects) in more than one directory. I understand (mistakenly?) that at present you cannot use attach() with directories, just with objects and packages. Also I think system("co...

...oing something odd in the production of my postscript files, they look fine elsewhere, and print well, so I don't think there is a problem. Can anyone tell me how to produce vector graphics in R that can be ungrouped for editing in CorelDraw? Best fishes Sam -- Sam McClatchie, Fisheries oceanographer Southwest Fisheries Science Center, NOAA, 8604 La Jolla Shores Drive La Jolla, CA 92037-1508, U.S.A. email <Sam.McClatchie at noaa.gov> work phone: 858 546 7083 Cellular: 858 752 8495 Research home page <http://www.fishocean.info> /\ ...>><xX(?>...

...ulate, direct and conduct research into the assessment of marine species population dynamics. This will involve: * Leading a small scientific team researching the development and application of population and ecosystem models for tropical species or systems; * Integrating fishery, ecosystem and oceanographic dynamics into the modelling environment; * Developing field data collection programs; * Proactively engaging in multi-disciplinary collaboration across CSIRO Marine Research, and other international fishery and oceanographic research organizations; and * Acting as an adviser to the fisheries...

...s(z) # like in octave package ans= 6 7 3 3 3 3 3 sum(ranks(z)) ans= 28 ### then apply multiple comparisions for many other data SE<-sqrt(n*(n*k)*(n*k+1)/12) # according Zar,JH. Bioestatistical # Analysis sec.12.6, on pg. 199 Thanks for any helps Marcelo A. BRUNO --# Oceanographer # --# FURG - Dpto.Oceanografia # --# CP 474 - RIO GRANDE - RS # --# CEP 96.200-000 BRAZIL # ##############################

I am exploring the use of loess for oceanographic applications and would like to plot the locations (longitude and latitude) points where the models (salinity~temperature*longitude*latitude,parametric="temperature") are fitted. Chambers and Hastie(1993) explains the locations are nodes of a k-d tree. but I cannot find anything about a...

...join an interdisciplinary and integrated research team of contractors and Federal employees at the NOAA National Centers for Coastal Ocean Science, Biogeography Branch. Responsibilities will include: * Mapping patterns of marine species through space and time using large-scale wildlife surveys and oceanographic databases; * Applying an existing machine-learning modeling framework to generate species distribution and abundance models; * Growing a spatial analysis code base, and oceanographic and ecological geodatabases; * Leading evaluation of model outputs, and generating tables and figures summarizing...

Hi all, I am a beginner trying to use R to work with large amounts of oceanographic data, and I find that computations can be VERY slow. In particular, computational speed seems to depend strongly on the number and size of the objects that are loaded (when R starts up). The same computations are significantly faster when all but the essential objects are removed. I am running...

...plot(c(1,2),c(3,4),yaxp=c(3,4,1),asp=1) or plot(c(1,2),c(3,4),yaxp=c(3,4,1),asp=1,yaxs="i") and these agreeably let me control the range of numbers on the axis, but the frame still extends outside the desired region. (At this point, I can explain why I care ... I'm drawing oceanographic data, and it makes no sense to have an axis frame that goes to the north of 90N or the south of 90S.) Is there a way that I can, perhaps, make the upper and lower margins be "stretchable", as one would say in the TeX world? That would seem to be a clean solution to my problem....

Colleagues, I am analyzing data collected during oceanographic cruises. We have conducted many cruises over the last decade. On each cruise we visit ~50 stations. At each station (termed EventNum)we lower an instrument that measures depth, temperature, salinity and oxygen every few seconds as it is lowered through the water. Data from all EventNums on all...

...ages of barnacle larvae from 5 species. Each panel of the plot represents a different stage, while different loess smoothers within each panel should represent different species. However, I would like depth to be on the y-axis and abundance to be on the x-axis, because this is more intuitive as an oceanographer. The smoothing curves would then represent the abundance profiles with depth of the larvae. I have tried just switching depth and abundance in the plot formula/coding, but this means that the loess smoother is based on averaging depth values for each abundance, which means that the curves give mu...

...matlab is highly desirable, as is facility with fortran and/or C. He/she should be comfortable working in a unix environment. Experience working with hydrographic data, while not essential, is certainly desirable. The work is to be done in collaboration with scientists at UM and at the Atlantic Oceanographic and Meteorological Laboratory (AOML), so there will be substantial guidance in how to approach the project. However, the successful candidate should be able to function with a minimal of supervision once the project is underway and he/she should assume responsibility for the project's success...

...ear, but if necessary with some work it should be possible to get a linear function that is good enough. Also, not all stations have values at all pressures. Thanks, Carlisle -- William Carlisle Thacker Atlantic Oceanographic and Meteorological Laboratory 4301 Rickenbacker Causeway, Miami, Florida 33149 USA Office: (305) 361-4323 Fax: (305) 361-4392 "Too many have dispensed with generosity in order to practice charity." Albert Camus

...scape, nor converted to EPS using Image Magick (suggesting failure somewhere?). I'm not criticizing the packages here, just making an observation. I can either create smaller bathymetry and coastline files, or use the big linux beast downstairs. Best fishes Sam -- Sam McClatchie (Fisheries oceanographer, SWFSC, NOAA) & Elena Turin (Internal controls accountant, UCSD) work: SWFSC, 8604 La Jolla Shores Drive, La Jolla, CA 92037-1508, USA home: 12723 Salmon River Rd, San Diego, CA 92129, USA web: <http://www.fishocean.info> Sam's cell: 858 752 8495 Elena's cell: 858 752 8689...

...interpolation.) Q: is there a way I can change the length of an element in a data frame, so that I can replace straight into it? PS. the code doesn't know the names of the items in the data frame in advance, although it is certain that one of them is called "pressure". (This is an oceanographic application, in case anyone wonders why pressure would be an independent variable for use in interpolation.) <code> #interpolate to target pressures in "pt". npt <- length(pt) for (datum.name in data.names) { if (datum.name != "pressure") { length(res$d...

...adie/SADIE_home_page_1.htm> might be useful, and am wondering if anyone has implemented this analysis method in R? I have failed to find any implementation on the R-site search, through google, or looking at the R packages browse by topic page. Best fishes Sam -- Sam McClatchie, Fisheries oceanographer Southwest Fisheries Science Center, NOAA, 8604 La Jolla Shores Drive La Jolla, CA 92037-1508, U.S.A. email <Sam.McClatchie at noaa.gov> work phone: 858 546 7083 Cellular: 858 752 8495 Research home page <http://www.fishocean.info> /\ ...>><xX(?&g...