Aspect of a geostatistical

Geostatistical Methods kriging

Scientific Investigations Report 2006–5316

Geostatistics is a specialized branch of statistical analysis concerned with the spatial relationships among data situated in two- or three-dimensional coordinate space. The process of geostatistical analysis and modeling includes: (1) assembling the data for analysis (data preparation); (2) calculating basic statistics, evaluating statistical stationarity, and performing data transformations to reduce the effect of outliers (exploratory analysis); (3) characterizing the spatial nature of the data (autocorrelation analysis); and (4) applying these statistical insights to create a model of spatial variability using a kriging estimator.

Data Selection

The database of basalt and interbed stratigraphy compiled by Anderson and others (1996) was used as the basis for this work. However, several limitations in their data set had to be addressed prior to analysis. Foremost was the fact that their stratigraphic interpretations represented best available knowledge at the time of compilation. Subsequent drilling, coring, and paleomagnetic and radiometric measurements have added to our understanding of subsurface stratigraphy beneath the INL. In many locations, new data have corroborated their interpretations; in other locations, new data have forced a re‑evaluation of local stratigraphic relationships.

Such limitations do not diminish the value of the 1996 compilation for two reasons. First, the 1996 database defines the spatial occurrences of various lithologies, regardless of their interpreted stratigraphic context; therefore, the Anderson database represents a valid snapshot of subsurface sedimentary abundances at the time of data compilation. Second, as new subsurface data accrue, an appropriate temporal reference point will have to be selected on which future data syntheses can build. Although recent stratigraphic compilations were and currently are being made by various groups at the INL, these are not as extensively documented or vetted as the interpretations published by Anderson and coworkers. However, such compilations will provide a useful means of evaluating the accuracy and quality of earlier compilations after selecting an appropriate reference against which new information can be compared.

For these reasons, the database of Anderson and others (1996) serves as a reasonable baseline for analyzing the subsurface distribution of sediment in the study area. Geostatistical analysis and modeling performed during the current work did not rely on the interpreted stratigraphy of Anderson and others (1996) except as it was used by Anderson and Liszewski (1997) to assign a composite unit stratigraphy.

Anything new about stirling engines in Cal?

Looking for an update. Everything I find from google news is almost a year old. This is from the stirling engine deal with Southern Edison to build a 500MW plant outside of LA.
What geographical areas are best suited for a solar dish farm?
The southwest region of the United States is ideally suited for this. In fact, a solar farm 100 miles by 100 miles could satisfy 100% of the America’s annual electrical needs. Solar technology primarily addresses the peak power demands facing utility companies in the Southwest U.S. and other solar-rich areas.


by tlbrink

The cost of living and job markets are better than the national average, but the best job strategy is not to go for averages, but look at your specific skills and experiences, figure out which careers that relates to, and then go to that geographical area:
technology - Silicon Valley
finance - New York
There are other factors to consider. How important are mountains? the ocean? good weather? I have met many midwesterners in Acapulco during the winter, and none ever told me
"I got to get back to Omaha. I just miss those snow covered plains."

4,000 Year Old Greenlander

by BurpBoohickie

WASHINGTON (Reuters) – Scientists have sequenced the DNA from four frozen hairs of a Greenlander who died 4,000 years ago in a study they say takes genetic technology into several new realms.
Surprisingly, the long-dead man appears to have originated in Siberia and is unrelated to modern Greenlanders, Morten Rasmussen of the University of Copenhagen and colleagues found.
"This provides evidence for a migration from Siberia into the New World some 5,500 years ago, independent of that giving rise to the modern Native Americans and Inuit," the researchers wrote in Thursday's issue of the journal Nature

Oxford University Press Geostatistical Analysis of Compositional Data (Studies in Mathematical Geology, 7)
Book (Oxford University Press)

Solar study: U of M students seek state's sunniest places  — Rick Kupchella's BringMeTheNews
The students are using geographic information systems technology and Lidar data, which is 3D aerial imaging of the Earth's surface, gathered by aircraft with laser-based technology, the students note in a 10-minute video that explains the project (below).

Elsevier Comparison of regression and geostatistical methods for mapping Leaf Area Index (LAI) with Landsat ETM+ data over a boreal forest [An article from: Remote Sensing of Environment]
Book (Elsevier)

Popular Q&A

Geostatistics method of reserve estimation?

That's a big question, because it depends on alot of things. If I were you, I'd try to get into a course. These tend to be expensive and hard to find though. If you forgo the official certification, you can still access a few geostats courses (including worked examples) on Edumine by paying for a monthly access fee (something like $40 CDN). You and I are in the same boat, actually! Good luck!

Can Geostatistical Analyst perform block kriging?

Yes. Block interpolation is available for all interpolation methods, including deterministic, when the results of prediction are exported to a raster format. The grid option in the symbology tab of the property dialog for a geostatistical layer allows the display of the results of prediction using block interpolation.

Related Posts