scholarly journals The solubility of calcium carbonate in tropical sea water

1941 ◽  
Vol 25 (2) ◽  
pp. 235-242 ◽  
Author(s):  
C. L. Smith
Keyword(s):  
Calcium Carbonate ◽  
Solubility Product ◽  
Sea Water ◽  
Natural Conditions ◽  
The West ◽  
Equilibrium Conditions ◽  
Maximum Value ◽  
Andros Island ◽  
Tropical Sea ◽  
Made In

In a previous paper (Smith, 1940b) the chemical changes observed in ocean sea water flowing across the shallow banks on the west coast of Andros Island (Bahamas) were reported. High salinities were produced by evaporation and calcium carbonate was precipitated. From the data obtained under natural conditions a maximum value of the solubility product constant of calcium carbonate in sea water was suggested. There was no reason to believe, however, that this value of the constant represented the true equilibrium conditions, and experiments have since been made in the laboratory with a view to bringing water from these banks into equilibrium with solid calcium carbonate.

scholarly journals SEA SURFACE TEMPERATURE DAN CHLOROPHYLL-A CONCENTRATION VARIABILITIES OF JAKARTA BAY AND ITS SURROUNDING WATERS

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Bisman Nababan
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Chlorophyll A ◽  
Sea Water ◽  
Water Circulation ◽  
Sea Surface ◽  
The West ◽  
Noaa Avhrr ◽  
La Nina ◽  
Maximum Value

<p>Variability of sea surface temperature (SST) and the concentration of chlorophyll-a (Chla) in Jakarta Bay and its surrounding waters were analyzed based on the time series data of monthly mean SST and Chla estimated by NOAA AVHRR, SeaWiFS, and MODIS satellites for 17 years (1997 to 2014). Generally, the monthly mean SST values fluctuated seasonally with the semi-annual pattern with the maximum value occurred in the second transitional season (Oct-Nov) and relatively high in the first transitional season (Mar). In contrast, the minimum of monthly mean SST values was found during the east season (Jul) and relatively low during the west season (Des-Jan). SST variabilities were generally associated with the sun position, sea water circulation, and rainfall. Based on MODIS data, the minimum-maximum of monthly mean SST ranged of 28.39°C-32.58°C. Seasonal fluctuations with the semi-annual pattern also occurred in the monthly mean Chla values with the maximum value occurred during the west season (Des-Jan) and relatively high values occurred during the east season (Jun). In contrast, the minimum of the monthly mean Chla was found during the second transition season (Sep-Oct) and relatively low during the first transitional season (March-Apr). The minimum-maximum of monthly mean Chla ranged of 0.09 mg/m<sup>3</sup>-2.50 mg/m<sup>3</sup>. Chla fluctuations were generally associated with the variabilities of rainfall, river water discharge, and sea water circulation of the Java Sea. Anomalous climatic factors such as El Nino Southern Oscillation (ENSO) and La Nina produced a significant impact on the SST and Chla interannual variability. Generally, the ENSO phenomenon lo-wers the value SST and Chla, while La Nina events tended to increase Chla values.</p><p><strong><em>Keywords: </em></strong><em>sea surface temperature, chlorophyll-a, fluctuation, NOAA AVHRR, SeaWiFS, MODIS</em></p>

scholarly journals SEA SURFACE TEMPERATURE DAN CHLOROPHYLL-A CONCENTRATION VARIABILITIES OF JAKARTA BAY AND ITS SURROUNDING WATERS

2016 ◽  
Vol 8 (1) ◽  
pp. 385-402
Author(s):  
Bisman Nababan
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Chlorophyll A ◽  
Sea Water ◽  
Water Circulation ◽  
Sea Surface ◽  
The West ◽  
Noaa Avhrr ◽  
La Nina ◽  
Maximum Value

Variability of sea surface temperature (SST) and the concentration of chlorophyll-a (Chla) in Jakarta Bay and its surrounding waters were analyzed based on the time series data of monthly mean SST and Chla estimated by NOAA AVHRR, SeaWiFS, and MODIS satellites for 17 years (1997 to 2014). Generally, the monthly mean SST values fluctuated seasonally with the semi-annual pattern with the maximum value occurred in the second transitional season (Oct-Nov) and relatively high in the first transitional season (Mar). In contrast, the minimum of monthly mean SST values was found during the east season (Jul) and relatively low during the west season (Des-Jan). SST variabilities were generally associated with the sun position, sea water circulation, and rainfall. Based on MODIS data, the minimum-maximum of monthly mean SST ranged of 28.39°C-32.58°C. Seasonal fluctuations with the semi-annual pattern also occurred in the monthly mean Chla values with the maximum value occurred during the west season (Des-Jan) and relatively high values occurred during the east season (Jun). In contrast, the minimum of the monthly mean Chla was found during the second transition season (Sep-Oct) and relatively low during the first transitional season (March-Apr). The minimum-maximum of monthly mean Chla ranged of 0.09 mg/m3-2.50 mg/m3. Chla fluctuations were generally associated with the variabilities of rainfall, river water discharge, and sea water circulation of the Java Sea. Anomalous climatic factors such as El Nino Southern Oscillation (ENSO) and La Nina produced a significant impact on the SST and Chla interannual variability. Generally, the ENSO phenomenon lo-wers the value SST and Chla, while La Nina events tended to increase Chla values.Keywords: sea surface temperature, chlorophyll-a, fluctuation, NOAA AVHRR, SeaWiFS, MODIS

Environment of calcium carbonate deposition west of Andros Island, Bahamas

10.3133/pp350 ◽  
1962 ◽  
Author(s):  
Preston E. Cloud ◽  
P.D. Blackmon ◽  
F.D. Sisler ◽  
Henry Kramer ◽  
J.H. Carpenter ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Carbonate Deposition ◽  
Andros Island ◽  
Calcium Carbonate Deposition

KERCH STRAIT IN KAMYSH-BURUN SPIT AREA: HIGH-RESOLUTION SEISMOACOUSTIC APPROACH

2018 ◽  
Author(s):  
В. Зинько ◽  
V. Zin'ko ◽  
А. Зверев ◽  
A. Zverev ◽  
М. Федин ◽  
...  
Keyword(s):  
High Resolution ◽  
Fracture Zone ◽  
Sedimentary Cover ◽  
Sedimentary Rocks ◽  
The West ◽  
Early Generation ◽  
The Third ◽  
Azov Sea ◽  
Kerch Strait ◽  
Made In

The seismoacoustical investigations was made in the western part of the Kerch strait (Azov sea) near Kamysh-Burun spit. The fracture zone with dislocated sedimentary rocks layers and buried erosional surface was revealed to the west of spit. Three seismofacial units was revealed to the east of spit. The first unit was modern sedimentary cover. The second ones has cross-bedding features and was, probably, the part of early generation of Kamysh-Burun spit, which lied to the east of its modern position. The lower border of the second unit is the erosional surface supposed of phanagorian age. The third unit is screened by acoustic shedows in large part.

The Mistaken Identification of “The West” with “Modernity”

1996 ◽  
Vol 13 (1) ◽  
pp. 1-12
Author(s):  
John Obert Voll
Keyword(s):  
World History ◽  
Negative Consequences ◽  
The West ◽  
Islamic World ◽  
Historical Perspectives ◽  
Important Impact ◽  
Mistaken Identification ◽  
Nature Ofthe ◽  
Made In ◽  
The Way

The relationships between Islam and the West are complex. Even theperceptions of those relations have an important impact on the nature ofthe interactions. If the basic images that are used in discussing “Islam andthe West” are themselves ill-defiied or viewed in inconsistent ways, therelationships themselves are affected in sometimes dangerous ways.Inconsistent and contradictory terms of analysis can lead to misunderstandingand conflict.One of the most frequent conceptual mistakes made in discussingIslam and the West in the modem era is the identification of “the West”with “modemity.” This mistake has a significant impact on the way peeple view the processes of modernization in the Islamic world as well as onthe way people interpret the relationships between Islam and the West inthe contemporary era.The basic generalizations resulting from the following analysis can bestated simply: 1) “modernity“ is not uniquely “western”; 2) “the West” isnot simply “modernity”; and 3) the identifixation of “the West” with“modemity” has important negative consequences for understanding therelationships between Islam and the West. Modernity and the West aretwo different concepts and historic entities. To use the terms interchangeablyis to invite unnecessary confusion and create possible conflict’andinconsistency. This article will address the problem of definition and theapplication of the defined terms to interpreting actual experiences andrelationships.Understanding the difficulties raised by the identification of theWest with modernity involves a broader analysis within the frameworkof world history and global historical perspectives. In such an analysis, ...

scholarly journals Natural Constraints to Cultural Relativism Example: Ricci’s Pacific-Centered World Maps

2020 ◽  
Vol 73 (3) ◽  
pp. 379-397
Author(s):  
Elmar Holenstein
Keyword(s):  
East Asia ◽  
Canary Islands ◽  
Cultural Relativism ◽  
Central State ◽  
The West ◽  
Gestalt Principles ◽  
Matteo Ricci ◽  
The Pacific ◽  
Made In

AbstractNot everything that is logically possible and technically feasible is also natural, for example, placing China in the exact center of a world map. Such a map would not correspond to the laws of perception.Matteo Ricci, who was the first to create Chinese world maps on which the Americas were depicted, had to choose between two ideals, between a world map that obeys the gestalt principles of perception and a world map with the “Central State” China in its center. The first ideal mattered more to him than the second, although he took the latter into account as well. The result was a Pacific-centered map.Since we live on a sphere, what we perceive to be in the East and in the West depends on our location. It is therefore natural that in East Asia, world maps show America in the East and not – as in Europe – in the West. This was the argument underlying Ricci’s creation of Pacific-centered maps, and not the intention of depicting China as close to the center of the map as possible.It is only in East Asia that Ricci was the first to create Pacific-centered maps. World maps with the Pacific in the midfield were made in Europe before Ricci, motivated by the traditional unidirectional numbering of the meridians (0°–360°) from West to East starting with the Atlantic Insulae Fortunatae (Canary Islands).

Diocletian's Price-Edict at Ptolemais (Cyrenaica)

1955 ◽  
Vol 45 (1-2) ◽  
pp. 106-115 ◽  
Author(s):  
Giacomo Caputo ◽  
Richard Goodchild
Keyword(s):  
Hellenistic Period ◽  
The West ◽  
Italian Government ◽  
Systematic Exploration ◽  
Roman Age ◽  
The City ◽  
Made In ◽  
Late Roman

Introduction.—The systematic exploration of Ptolemais (modern Tolmeita), in Cyrenaica, began in 1935 under the auspices of the Italian Government, and under the direction of the first-named writer. The general programme of excavation took into consideration not only the important Hellenistic period, which gave the city its name and saw its first development as an autonomous trading-centre, but also the late-Roman age when, upon Diocletian's reforms, Ptolemais became capital of the new province of Libya Pentapolis and a Metropolitan See, later occupied by Bishop Synesius.As one of several starting-points for the study of this later period, there was selected the area first noted by the Beecheys as containing ‘heaps of columns’, which later yielded the monumental inscriptions of Valentinian, Arcadius, and Honorius, published by Oliverio. Here excavation soon brought to light a decumanus, running from the major cardo on the west towards the great Byzantine fortress on the east. Architectural and other discoveries made in 1935–36 justified the provisional title ‘Monumental Street’ assigned to this ancient thoroughfare. In terms of the general town-plan, which is extremely regular, this street may be called ‘Decumanus II North’, since two rows of long rectangular insulae separate it from the Decumanus Maximus leading to the West Gate, still erect. The clearing of the Monumental Street and its frontages revealed the well-known Maenad reliefs, attributed to the sculptor Callimachus, a late-Roman triple Triumphal Arch, and fragments of monumental inscriptions similar in character to those previously published from the same area.

Psychiatry in the Northern Sudan: A Study in Comparative Psychiatry

1968 ◽  
Vol 114 (513) ◽  
pp. 945-948 ◽  
Author(s):  
M. E. Elsarrag
Keyword(s):  
Private Practice ◽  
Psychiatric Illness ◽  
The West ◽  
Government Clinic ◽  
The Government ◽  
Two Populations ◽  
Made In

This study is mainly based on my work in psychiatry in the Clinic of Nervous Disorders, Khartoum North, and with my private practice patients. I have seen altogether 2,160 patients. The distribution of psychiatric illness in these is shown in the table below. The two populations of patients attending the Government clinic and private practice are comparable, and the same patients interchange. A comparison is made in this paper between psychiatry in the West, mainly British psychiatry, and Sudanese psychiatry.

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