Application of remote sensing data to surveys of the Alaskan environment

Coupling of satellite data to resource management problems in Alaska is implemented through feasibility studies of applicability of Landsat data to specific environmental surveys in ecology, agriculture, hydrology, wildlife management, oceanography, geology, etc.; and using the results of these studies to extend the benefits of satellite data applications to the operational needs of mission-oriented agencies of federal, state, and regional governments, as well as private industry. Activities designed to encourage the participation of users in the Landsat program at levels most appropriate to the users' interests are described and include: observation, coordination, and information exchange; training courses and workshops; data exchange; consulting services; data processing services; user participation in University research projects; and university participation in the operational projects of user agencies. Progress in these areas is reported. The effectiveness of this broad-based approach in overcoming the initial apprehensiveness of users is demonstrated

Application of remote sensing data to surveys of the Alaskan environment

There are no author-identified significant results in this report

Pakomio Maori: red-haired, blue-eyed key to Easter Island's prehistoric past

Anyone who spends more than a few days on Easter Island and can converse in Spanish with the islanders soon becomes aware that they are endlessly fascinated by the variations in each others' skin colors. Katherine Scoresby Routledge, the English archaeologist, who spent almost 17 months on the island in 1914-15, was the first to note this peculiarity in print. In her book The Mystery of Easter Island. she said that Roggeveen's description of the islanders as being 'of all shades of colour' was 'still accurate' and that they themselves were 'very conscious of the variations'.</p

Part I, Series J, Section 27: 1960 Part II

Correspondence and personal papers 1960 part 2, concerning South Pacific topics, with academics, writers , students and scholar

Papers in Pidgin and Creole Linguistics No. 5

PETER MOHLHAUSLER, Pidgins, creoles and post-contact Aboriginal languages in Western Australia -- ROBERT FOSTER, PETER MUHLHA.USLER AND PlllLIP CLARKE, 'Give me back my name': The 'classification' of Aboriginal people in colonial South Australia -- TERRY CROWLEY, The Bislama lexicon before the First World War: written attestations -- ANDERS KALLGAAD, A Pitkern word list -- WARREN SHIBLES The phonetics of pidgin and creole: toward a standard IPA transcriptio

In the Senate of the United States. Report on introduction of domestic reindeer into Alaska, with maps and illustrations, by Sheldon Jackson, General Agent of Education in Alaska. 1895.

Domestic Reindeer in Alaska. 10 Feb. SD 111, 54-1, v4. 136p. [3350] For the benefit of Eskimos and other Alaskan natives

The Development of a Stepped Frequency Microwave Radiometer and Its Application to Remote Sensing of the Earth

The design, development, application, and capabilities of a variable frequency microwave radiometer are described. This radiometer has demonstrated the versatility, accuracy, and stability required to provide contributions to the geophysical understanding of ocean and ice processes. The design technique utilized a closed-loop feedback method, whereby noise pulses were added to the received electromagnetic radiation to achieve a null balance in a Dicke switched radiometer. Stability was achieved through the use of a constant temperature enclosure around the low loss microwave front end. The Dicke reference temperature was maintained to an absolute accuracy of 0.1 K using a closed-loop proportional temperature controller. Versatility was achieved by developing a microprocessor based digital controller which operates the radiometer and records the data on computer compatible tapes. Accuracy analysis has shown that this radiometer exhibits an absolute accuracy of better than 0.5 K when the sensitivity is 0.1 K. The sensitivity varies between 0.0125 K and 1.25 K depending upon the bandwidth and integration time selected by the digital controller. Computational techniques were developd to (1) predict the radiometric brightness temperature at the input to the radiometer antenna as a function of the geophysical parameters, (2) compute the required input radiometric brightness temperature as a function of the radiometer output using a mathematical model of the radiometer, (3) achieve computational efficiency through a simplified algorithm to determine the expected radiometric brightness temperature, and (4) calculate the emissivity of a layered dielectric media such as ice over water. The effects of atmospheric absorption due to oxygen, water vapor, nonprecipitating clouds have been included. Correction factors for the finite antenna beamwidth, surface roughness, and wind induced foam were employed in these computations. Remote sensing experiments were conducted from an aircraft platform using this radiometer. The purpose of these experiments was to demonstrate that the accuracy and versatility of this instrument had been achieved in actual field experiments. Four significant scientific observations were accomplished during these experiments. These observations consisted of the first radiometric mapping of an ocean polar front, exploratory experiments to measure the thickness of lake ice, first discrimination between first year and multiyear ice below 10 GHz, and the first known measurements of frequency sensitive characteristics of sea ice