2 edition of Some measurements of the tritium content in the natural waters of southern Oahu, Hawaii found in the catalog.
Some measurements of the tritium content in the natural waters of southern Oahu, Hawaii
Theodorus H. Hufen
by Water Resources Research Center, University of Hawaii] in [Honolulu
Written in English
|Statement||by Theodorus H. Hufen, Robert A. Duce [and] L. Stephen Lau.|
|Series||Water Resources Research Center, University of Hawaii. Technical report no. 34, Technical report (University of Hawaii at Manoa. Water Resources Research Center) ;, no. 34.|
|Contributions||Duce, Robert A., 1935- joint author., Lau, L. Stephen 1929- joint author.|
|LC Classifications||TC1 .H36 no. 34|
|The Physical Object|
|Pagination||vi, 32 p.|
|Number of Pages||32|
|LC Control Number||75631766|
Just as our idyllic weather welcomes tourists from around the world, the warm and shallow waters surrounding the Hawaiian Islands are a favorite destination for kohola, or humpback ists estimate that two-thirds of the entire North Pacific humpback whale population return to Hawaii to breed, calve and nurse their young. oceans. Some are short lived and small, while others are vast flows that take centuries to complete a circuit of the globe. Currents are caused by winds, gravity, and variations in water density in different parts of the ocean. There are two distinct current systems in th e.
The leeward southeast Oahu ground-water area includes the Waialae and Wailupe-Hawaii Kai aquifers. The Waialae aquifer is separated from the ground water of Kaimuki to the west by Palolo valley fill and the Kaau rift zone, and from the Wailupe-Hawaii Kai aquifer to the east by a line of northeast-trending volcanic dikes. The distinct ground-water head changes across these boundaries indicate. Hawaii is an ocean lover’s paradise, with the water activities on Oahu being among the best and most versatile of all the islands. Its nickname, “The Gathering Place,” is a fitting moniker, as so many tourists are attracted to its shores yearly by the sheer wealth of Oahu water .
Water Quality in the Halawa, Haiku, and Kaneohe Drainage Basins Before, During and After H-3 Highway Construction, Oahu, Hawaii - Ground Water Quality and it's Relation to Land Use on Oahu, Hawaii - Environmental Setting and the Effects of Natural and Human-Related Factors on Water Quality and Aquatic Biota, Oahu, Hawaii -. The state of Hawaii is composed mainly of eight principal islands. In order of size (largest to smallest), they are Hawaii, Maui, Oahu, Kauai, Molokai, Lanai, Niihau, and Kahoolawe. Most of the other islands in the Hawaiian chain are uninhabited. Several of the islets and reefs are part of the Hawaiian Islands National Wildlife Refuge.
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SOME MEASUREMENTS OF THE TRITIUM CONTENT IN THE NATURAL WATERS OF SOUTHERN OAHU, HAWAII by Theodorus H. Hufen Robert A. Duce L. Stephen Lau Technical Report No. 34 November Project Completion Report of WATER TRACING AND DATING IN HAWAII HYDROLOGIC CYCLE - PHASE II OWRR Project No.
AHI,Grant Agreement No. At present, the activity level of tritium in Hawaiian rain is between and TU which is still considerably higher than the natural levels measured by von Buttlar and Libby in It is possible to utilize the man-made tritium spike as a tracer to 2 study the infiltration, flow, and storage of ground water.
Tritium measurements in natural Hawaiian waters: Instrumentation (Technical report / University of Hawaii, Water Resources Research Center) [Lau, L.
Stephen] on *FREE* shipping on qualifying offers. Tritium measurements in natural Hawaiian waters: Instrumentation (Technical report / University of HawaiiAuthor: L.
Stephen Lau. An analysis was made of the tritium content of samples from various sources of surface and subsurface waters of the island of Oahu. Twenty rainwater samples collected from various rain gages located on the Koolau Range over a period of four months showed an.
The maximum monthly value of the tritium content of precipitation is TU, and the Danube at km has a maximum of TU ( pCi/l). In general, there is no correlation between the amount of precipitation and river water with tritium content. This is a preview of subscription content, log in to check by: 5.
In addition, tritium is produced synthetically in thermonuclear explo sions, and large concentrations are trapped in rain and snow.
The usefulness of tritium in dating or tracer studies depends on the accuracy of its analysis. Tritium levels for some natural waters are extremely low, and the analysis may require special enrichment techniques.
enrichment then suffices to measure natural levels of tritium in ground waters of up to 25 years " age " corresponding to T/H ratios of ca. 5 x INTRODUCTION FOR over a decade the tritium activity of surface waters, particularly in the northern hemisphere, has been due primarily to nuclear weapons' testing.
The total present-day inventory. Hufen TH, Duce RA, Lau LS () Technical Report Ser. Some Measurements of the Tritium Content in the Natural Waters of Southern Oahu, Hawaii.
IAEA/WHO, Environmental isotope data no. World survey of isotope concentration in precipitation (–) Google Scholar. Tritium Basics OTritium (3H) is a radioactive isotope of hydrogen ONucleus has one proton and two neutrons OHalf-life = years OEmits low energy beta particle (average energy of keV) OTransforms into stable helium OCan be a gas, but most commonly is water (like other hydrogen atoms, tritium reacts with oxygen to form water).
After some French evaluations , the content of tritium in the fuel of a PWR of 1, MW(e), after a storage for 5 months in a piscine, is of 7 x g tritium per tonne. of uranium with an activity of Ci per fuel cladding, and of about 20 kCi for an annual discharge (64 assemblages).
REGIONAL AQUIFER-SYSTEM ANALYSIS-OAHU, HAWAII GEOHYDROLOGY OF THE ISLAND OF OAHU, HAWAII By Charles D. Hunt, Jr. ABSTRACT The island of Oahu, Hawaii, is the eroded remnant of two coalesced shield volcanoes, the Waianae Volcano and the Koolau Volcano.
Shield-building lavas emanated mainly from the rift zones of the volcanoes. The natural background mass of tritium in the atmosphere from the spallation of cosmic ray is about 4 kg (Michel et al., ).
After the Nuclear Test Ban Treaty inthe level of tritium content in precipitation has been gradually decreasing and now returned to its natural.
The remnants of two shield volcanoes comprise the island of Oahu ().Both the western side of the Waianae and eastern side of the Koolau Volcanoes have collapsed into the ocean, such that the island is constructed of their overlapping remnants (e.g., Sherrod et al., ).The Waianae volcano was active from ∼ to Ma, whereas the Koolau shield developed between ∼ to Ma.
All known tritium measurements made of Hawaii rainwater, ocean water, surface water, and ground water are summarized. Ocean water yielded 10 to 20 T.U. in The coastal extent of this group: Koko Head, Hanauma Bay, and Koko Crater is ~10 km and is essentially an undeveloped and natural shoreline.
The back side of Koko Head makes up the east end of Maunalua Bay while the seaward edge, facing south and southeast, forms a rocky coast eroded by surface water runoff and wave erosion.
A comprehensive modeling study was undertaken to examine the transport and fate of pathogenic organisms in the coastal waters of Mamala Bay, the southern shore of the island of Oahu, Hawaii.
Natural tritium concentrations in surface waters are of the order of 10 tritium atoms per hydrogen atom. This is the reason that tritium concentrations are reported as TU (Tritium Units) which mean a tritium to hydrogen ratio [T]/ [H] of 10 (1 TU is equivalent to an.
Chapter 5 At the peak 3H concentration during spring the 3H content of precipitation at the northern hemisphere was about TU (Fig). Considering the rough estimate of the amount of water in the troposphere of about 2 kg (4 g/cm2), the total 3H inventory in the northern troposphere was then in the order of 10 kg or roughly 3 kmole.
PacIOOS' ocean circulation model provides a 7-day forecast of ocean currents for the island of Oʻahu, Hawaiʻi and other parts of the Pacific Islands region. Explore our interactive viewer and data graphs.
A guide to Marine Life Conservation Districts designated by the State of Hawaii, Department of Land and Natural Resources, Division of Aquatic Resources. Harbors of Hawaii. Lakes of Hawaii. Rivers of Hawaii. Waterfalls of Hawaii. Water Sports Venues in Hawaii - Swimming Pools of Hawaii - Scuba Diving Spots of Hawaii - Surfing Spots of Hawaii.
Southern Oahu is divided into six areas, Ewa, Pearl Harbor, Moanalua, Kalihi, Beretania, and Kaimuki. Southeastern Oahu is divided into the Waialae and Wailupe-Hawaii Kai areas.
Along the northeast coast of windward Oahu is the Kahuku ground-water area. The aquifers of Oahu contain shallow freshwater and deeper saltwater flow systems.To avoid drowning, the mangrove grows stilt roots above the water line.
These arching aerial roots form a dense thicket. Mangroves have the ability to stabilize a shoreline by collecting silt and soil and for this reason were brought to Hawaii in They were first planted to stabilize Molokai’s mud flats in the southwestern part of the.Tritium (3 H or T) is the radioactive isotope of hydrogen that decays with a half life of years to its stable daughter 3 He.
Tritium is produced naturally in the upper atmosphere by interaction of nitrogen, and, to a lesser extent, oxygen with cosmic rays. After oxidation to HTO, it takes part in the natural water .