In situ spectroradiometric calibration of EREP imagery and oceanography of Block Island Sound

There are no author-identified significant results in this report

In situ spectroradiometric calibration of EREP imagery and oceanography of Block Island Sound

There are no author-identified significant results in this report

In situ spectroradiometric calibration of EREP imagery and estuarine and coastal oceanography of Block Island sound and adjacent New York coastal waters

The author has identified the following significant results. The first part of the study resulted in photographic procedures for making multispectral positive images which greatly enhance the color differences in land detail using an additive color viewer. An additive color analysis of the geologic features near Willcox, Arizona using enhanced black and white multispectral positives allowed compilation of a significant number of unmapped geologic units which do not appear on geologic maps of the area. The second part demonstrated the feasibility of utilizing Skylab remote sensor data to monitor and manage the coastal environment by relating physical, chemical, and biological ship sampled data to S190A, S190B, and S192 image characteristics. Photographic reprocessing techniques were developed which greatly enhanced subtle low brightness water detail. Using these photographic contrast-stretch techniques, two water masses having an extinction coefficient difference of only 0.07 measured simultaneously with the acquisition of S190A data were readily differentiated

Coastal and estuarine applications of multispectral photography

An evaluation of multispectral photographic techniques for optical penetration of water in the northeastern United States and the Gulf of Mexico coastal waters is presented. The spectral band (493 to 543 nanom), when exposed to place the water mass at about unit density on the photographic emulsion, was found to provide the best water penetration, independent of altitude or time of day, as long as solar glitter from the surface of the water is avoided. An isoluminous color technique was perfected, which eliminates the dimension of brightness from a multispectral color presentation

The Raman Spectrum of Arsenic Trifluoride and the Molecular Constants of AsF3, AsCl3 and PCl3

The Raman spectrum of AsF3 was found to consist of four lines with the frequencies omega1(1), 707; omega2(1), 341; omega3(2), 644; and omega4(2), 274 cm^—1. The selection rules require a pyramidal molecule. Electron diffraction data for AsF3, AsCl3 and PCl3 are used to establish the bond angles. The entropies of the three trihalides were calculated, and the standard free energies of formation of AsCl3(l) and AsCl3(g) were determined to be —65,190 cal. and —62,718 cal., respectively, at 25°

The Valence of Sulfur in Dithionates

It has been shown by Lindh [1] and others [2] that the shift in the K absorption edges for various compounds of sulfur, chlorine, phosphorous, iron, and some other substances, depends chiefly on the valence of the element in a given compound. With increasing valence in a given element the wave-length of the edge shifts to smaller values. Stelling [3] has explained the effect of valence as being due to the screening effect of electrons in external parts of atoms. To be sure, other factors influence the position of the edges, such as other elements occurring in the compounds, and lattice structure, but these factors produce in general only minor fluctuations around a mean value, whereas the mean values for the several valences show rather wide divergences. For example, the wave-lengths of the principal K edge of a large number of 4- and 6-valent inorganic sulfur compounds practically all lie within half an X-unit of the means of their respective groups, whereas the means themselves are separated by 8 X. U. A similar state of affairs is observed in the 2-valent compounds. The edges do not lie quite so close to the mean, but the mean is 13 X. U. from that of the 4-valent compounds. All the substances thus far investigated bear out the general statements above. In view of the rather large body of facts now before us, it seems legitimate to try to use x-ray absorption data to obtain information on the valence state of an element in a compound. The substance used in the present investigation was potassium dithionate, the object being to determine the state of the two sulfur atoms in K2S2O6. Lindh [4] has already shown that for Na2S2O3 and some other thiosulfates there is not just a simple absorption edge, but two edges, corresponding in position to the valence states SII and probably Siv, which states are generally assumed by chemists for the two sulfur atoms in the thiosulfates. Now if valence is calculated in the usual way, then on the assumption that the sulfur atoms of the dithionates are in the same state we get for them a valence of V, and we would expect to find the K absorption edge corresponding to a single state, rather than the two edges shown by the thiosulfates

Photographic techniques for enhancing ERTS MSS data for geologic information

Satellite multispectral black-and-white photographic negatives of Luna County, New Mexico, obtained by ERTS on 15 August and 2 September 1973, were precisely reprocessed into positive images and analyzed in an additive color viewer. In addition, an isoluminous (uniform brightness) color rendition of the image was constructed. The isoluminous technique emphasizes subtle differences between multispectral bands by greatly enhancing the color of the superimposed composite of all bands and eliminating the effects of brightness caused by sloping terrain. Basaltic lava flows were more accurately displayed in the precision processed multispectral additive color ERTS renditions than on existing state geological maps. Malpais lava flows and small basaltic occurrences not appearing on existing geological maps were identified in ERTS multispectral color images

The International Sea-Bed Authority Decision-Making Process: Does It Give a Proportionate Voice to the Participant\u27s Interests in Deep Sea Mining?

This Comment critiques the United States\u27 refusal to sign the Convention, based on its contention that the International Sea-Bed Authority (ISA) decision-making process fails to proportionately protect its interests in deep sea mining. The author examines the underlying purpose of UNCLOS III and the divergent political and economic interests of the participants in deep sea mining. The author further examines the decision-making process of the ISA in order to determine which interests are represented and protected by the system, and compares this system to other international means. The author argues that the United States\u27 should sign the Convention, as its interests will be better served within the ISA framework rather than relying on a series of bilateral agreements or obsolete customary law

Multispectral photography for earth resources

A guide for producing accurate multispectral results for earth resource applications is presented along with theoretical and analytical concepts of color and multispectral photography. Topics discussed include: capabilities and limitations of color and color infrared films; image color measurements; methods of relating ground phenomena to film density and color measurement; sensitometry; considerations in the selection of multispectral cameras and components; and mission planning

Review of \u3cem\u3eFrom Apple Trees To Cider, Please!\u3c/em\u3e by Felicia Sanzari Chernesky

https://digitalcommons.cedarville.edu/intern_book_reviews/1169/thumbnail.jp