Supnick matrix: Difference between revisions
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{{main|Properties of water}} | |||
The [[refractive index]] of water at 20°C is 1.332986. The refractive index of normal ice is 1.31. (From [[List of refractive indices]].) | |||
In general, an index of refraction is a complex number with both a real and imaginary part, where the latter indicates the strength of absorption loss at a particular wavelength. In the visible part of electromagnetic spectrum the imaginary part of the refractive index is very small. However, water and ice absorb in infrared and close the [[atmospheric window]] thereby contributing to the [[greenhouse effect]] | |||
The absorption spectrum of pure water is used in numerous applications, including light scattering and absorption by [[ice|ice crystals]] and [[cloud physics|cloud water droplets]], theories of the [[rainbow]], determination of the [[single scattering albedo]], [[ocean color]], and many others. | |||
==Quantitative description of the refraction index== | |||
Over the wavelengths from 0.2 μm to 1.2 μm, and over temperatures from −12°C to 500°C the real part of the index of refraction of water can be calculated by the following empirical expression: | |||
<ref>{{cite journal | |||
| author = The International Association for the Properties of Water and Steam | |||
| title = Release on the Refractive Index of Ordinary Water Substance as a Function of Wavelength, Temperature and Pressure | |||
| year = 1997 | |||
| url =http://www.iapws.org/relguide/rindex.pdf | |||
| format = [[PDF]] | |||
| accessdate = 2008-10-08 }}</ref> | |||
:<math>\frac{n^{2}-1}{n^{2}+2}(1/\overline{\rho })=a_{0}+a_{1}\overline{\rho}+a_{2}\overline{T}+a_{3}{\overline{\lambda}}^{2}\overline{T}+\frac{a_{4}}{{\overline{\lambda}}^{2}}+\frac{a_{5}}{{\overline{\lambda }}^{2}-{\overline{\lambda}}_{\mathit{UV}}^{2}}+\frac{a_{6}}{{\overline{\lambda}}^{2}-{\overline{\lambda }}_{\mathit{IR}}^{2}}+a_{7}{\overline{\rho}}^{2}</math> | |||
Where: | |||
{|align="center" | |||
|<math>\overline T = \frac{T}{T^{\text{*}}}, \text{ } </math> <br /> | |||
|<math>\overline \rho = \frac{\rho}{\rho^{\text{*}}}, \text{ and } </math> <br /> | |||
|<math>\overline \lambda = \frac{\lambda}{\lambda^{\text{*}}}</math><br /> | |||
|} | |||
and the appropriate constants are | |||
<math>a_0</math> = 0.244257733, <math>a_1</math> = 0.00974634476, <math>a_2</math> = −0.00373234996, <math>a_3</math> = 0.000268678472, <math>a_4</math> = 0.0015892057, <math>a_5</math> = 0.00245934259, <math>a_6</math> = 0.90070492, <math>a_7</math> = −0.0166626219, <math>T^{*}</math> = 273.15 K, <math>\rho^{*}</math> = 1000 kg/m<sup>3</sup>, <math>\lambda^{*}</math> = 589 nm, <math>\overline\lambda_{\text{IR}}</math> = 5.432937, and <math>\overline\lambda_{\text{UV}}</math> = 0.229202. | |||
In the above expression T is the absolute temperature of water (in K), <math>\lambda</math> is the wavelength of light in nm, <math>\rho</math> is the density of the water in kg/m<sup>3</sup>, and n is the real part of the index of refraction of water. | |||
==Refractive Index, Real and Imaginary Parts for Liquid Water== | |||
{| class="wikitable sortable" border="1" | |||
|+ Refractive Index of Liquid Water | |||
|- | |||
! scope="col" | Wavelength (μm) | |||
! scope="col" | Wavenumber (cm<sup>−1</sup>) | |||
! scope="col" | Frequency (THz) | |||
! scope="col" class="unsortable" | ''n'' | |||
! scope="col" class="unsortable" | ''k'' | |||
! scope="col" class="unsortable" | α' (cm<sup>−1</sup>) | |||
|- | |||
| 0.200 || {{val|5.00|e=4}} || {{val|1.50|e=3}} || 1.396 || {{val|1.1|e=-7}} || 0.069 | |||
|- | |||
| 0.225 || {{val|4.44|e=4}} || {{val|1.33|e=3}} || 1.373 || {{val|4.9|e=-8}} || 0.027 | |||
|- | |||
| 0.250 || {{val|4.00|e=4}} || {{val|1.20|e=3}} || 1.362 || {{val|3.35|e=-8}} || 0.0168 | |||
|- | |||
| 0.275 || {{val|3.64|e=4}} || {{val|1.09|e=3}} || 1.354 || {{val|2.35|e=-8}} || 0.0107 | |||
|- | |||
| 0.300 || {{val|3.33|e=4}} || 999 || 1.349 || {{val|1.6|e=-8}} || {{val|6.7|e=-3}} | |||
|- | |||
| 0.325 || {{val|3.08|e=4}} || 922 || 1.346 || {{val|1.08|e=-8}} || {{val|4.18|e=-3}} | |||
|- | |||
| 0.350 || {{val|2.86|e=4}} || 857 || 1.343 || {{val|6.5|e=-9}} || {{val|2.3|e=-3}} | |||
|- | |||
| 0.375 || {{val|2.67|e=4}} || 799 || 1.341 || {{val|3.5|e=-9}} || {{val|1.2|e=-3}} | |||
|- | |||
| 0.400 || {{val|2.50|e=4}} || 749 || 1.339 || {{val|1.86|e=-9}} || {{val|5.84|e=-4}} | |||
|- | |||
| 0.425 || {{val|2.35|e=4}} || 705 || 1.338 || {{val|1.3|e=-9}} || {{val|3.8|e=-4}} | |||
|- | |||
| 0.450 || {{val|2.22|e=4}} || 666 || 1.337 || {{val|1.02|e=-9}} || {{val|2.85|e=-4}} | |||
|- | |||
| 0.475 || {{val|2.11|e=4}} || 631 || 1.336 || {{val|9.35|e=-10}} || {{val|2.47|e=-4}} | |||
|- | |||
| 0.500 || {{val|2.00|e=4}} || 600 || 1.335 || {{val|1.00|e=-9}} || {{val|2.51|e=-4}} | |||
|- | |||
| 0.525 || {{val|1.90|e=4}} || 571 || 1.334 || {{val|1.32|e=-9}} || {{val|3.16|e=-4}} | |||
|- | |||
| 0.550 || {{val|1.82|e=4}} || 545 || 1.333 || {{val|1.96|e=-9}} || {{val|4.48|e=-4}} | |||
|- | |||
| 0.575 || {{val|1.74|e=4}} || 521 || 1.333 || {{val|3.60|e=-9}} || {{val|7.87|e=-4}} | |||
|- | |||
| 0.600 || {{val|1.67|e=4}} || 500 || 1.332 || {{val|1.09|e=-8}} || {{val|2.28|e=-3}} | |||
|- | |||
| 0.625 || {{val|1.60|e=4}} || 480 || 1.332 || {{val|1.39|e=-8}} || {{val|2.79|e=-3}} | |||
|- | |||
| 0.650 || {{val|1.54|e=4}} || 461 || 1.331 || {{val|1.64|e=-8}} || {{val|3.17|e=-3}} | |||
|- | |||
| 0.675 || {{val|1.48|e=4}} || 444 || 1.331 || {{val|2.23|e=-8}} || {{val|4.15|e=-3}} | |||
|- | |||
| 0.700 || {{val|1.43|e=4}} || 428 || 1.331 || {{val|3.35|e=-8}} || {{val|6.01|e=-3}} | |||
|- | |||
| 0.725 || {{val|1.38|e=4}} || 414 || 1.330 || {{val|9.15|e=-8}} || 0.0159 | |||
|- | |||
| 0.750 || {{val|1.33|e=4}} || 400 || 1.330 || {{val|1.56|e=-7}} || 0.0261 | |||
|- | |||
| 0.775 || {{val|1.29|e=4}} || 387 || 1.330 || {{val|1.48|e=-7}} || 0.0240 | |||
|- | |||
| 0.800 || {{val|1.25|e=4}} || 375 || 1.329 || {{val|1.25|e=-7}} || 0.0196 | |||
|- | |||
| 0.825 || {{val|1.21|e=4}} || 363 || 1.329 || {{val|1.82|e=-7}} || 0.0282 | |||
|- | |||
| 0.850 || {{val|1.18|e=4}} || 353 || 1.329 || {{val|2.93|e=-7}} || 0.0433 | |||
|- | |||
| 0.875 || {{val|1.14|e=4}} || 343 || 1.328 || {{val|3.91|e=-7}} || 0.0562 | |||
|- | |||
| 0.900 || {{val|1.11|e=4}} || 333 || 1.328 || {{val|4.86|e=-7}} || 0.0679 | |||
|- | |||
| 0.925 || {{val|1.08|e=4}} || 324 || 1.328 || {{val|1.06|e=-6}} || 0.144 | |||
|- | |||
| 0.950 || {{val|1.05|e=4}} || 316 || 1.327 || {{val|2.93|e=-6}} || 0.388 | |||
|- | |||
| 0.975 || {{val|1.03|e=4}} || 307 || 1.327 || {{val|3.48|e=-6}} || 0.449 | |||
|- | |||
| 1.0 || {{val|1.0|e=4}} || 300 || 1.327 || {{val|2.89|e=-6}} || 0.36 | |||
|- | |||
| 1.2 || 8300 || 250 || 1.324 || {{val|9.89|e=-6}} || 1.0 | |||
|- | |||
| 1.4 || 7100 || 210 || 1.321 || {{val|1.38|e=-4}} || 12 | |||
|- | |||
| 1.6 || 6200 || 190 || 1.317 || {{val|8.55|e=-5}} || 6.7 | |||
|- | |||
| 1.8 || 5600 || 170 || 1.312 || {{val|1.15|e=-4}} || 8.0 | |||
|- | |||
| 2.0 || 5000 || 150 || 1.306 || {{val|1.1|e=-3}} || 69 | |||
|- | |||
| 2.2 || 4500 || 136 || 1.296 || {{val|2.89|e=-4}} || 17 | |||
|- | |||
| 2.4 || 4200 || 125 || 1.279 || {{val|9.56|e=-4}} || 50. | |||
|- | |||
| 2.6 || 3800 || 115 || 1.242 || {{val|3.17|e=-3}} || 150 | |||
|- | |||
| 2.65 || 3770 || 113 || 1.219 || {{val|6.7|e=-5}} || 318 | |||
|- | |||
| 2.70 || 3700 || 111 || 1.188 || 0.019 || 880 | |||
|- | |||
| 2.75 || 3640 || 109 || 1.157 || 0.059 || 2700 | |||
|- | |||
| 2.80 || 3570 || 107 || 1.142 || 0.115 || 5160 | |||
|- | |||
| 2.85 || 3510 || 105 || 1.149 || 0.185 || 8160 | |||
|- | |||
| 2.90 || 3450 || 103 || 1.201 || 0.268 || 11600 | |||
|- | |||
| 2.95 || 3390 || 102 || 1.292 || 0.298 || 12700 | |||
|- | |||
| 3.00 || 3330 || 100. || 1.371 || 0.272 || 11400 | |||
|- | |||
| 3.05 || 3280 || 98.3 || 1.426 || 0.240 || 9990 | |||
|- | |||
| 3.10 || 3230 || 96.7 || 1.467 || 0.192 || 7780 | |||
|- | |||
| 3.15 || 3170 || 95.2 || 1.483 || 0.135 || 5390 | |||
|- | |||
| 3.20 || 3120 || 93.7 || 1.478 || 0.0924 || 3630 | |||
|- | |||
| 3.25 || 3080 || 92.2 || 1.467 || 0.0610 || 2360 | |||
|- | |||
| 3.30 || 3030 || 90.8 || 1.450 || 0.0368 || 1400 | |||
|- | |||
| 3.35 || 2990 || 89.5 || 1.432 || 0.0261 || 979 | |||
|- | |||
| 3.40 || 2940 || 88.2 || 1.420 || 0.0195 || 721 | |||
|- | |||
| 3.45 || 2900 || 86.9 || 1.410 || 0.0132 || 481 | |||
|- | |||
| 3.50 || 2860 || 85.7 || 1.400 || 0.0094 || 340 | |||
|- | |||
| 3.6 || 2780 || 83 || 1.385 || 0.00515 || 180 | |||
|- | |||
| 3.7 || 2700 || 81 || 1.374 || 0.00360 || 120 | |||
|- | |||
| 3.8 || 2630 || 79 || 1.364 || 0.00340 || 110 | |||
|- | |||
| 3.9 || 2560 || 77 || 1.357 || 0.00380 || 120 | |||
|- | |||
| 4.0 || 2500 || 75 || 1.351 || 0.00460 || 140 | |||
|- | |||
| 4.1 || 2440 || 73 || 1.346 || 0.00562 || 170 | |||
|- | |||
| 4.2 || 2380 || 71 || 1.342 || 0.00688 || 210 | |||
|- | |||
| 4.3 || 2330 || 70. || 1.338 || 0.00845 || 250 | |||
|- | |||
| 4.4 || 2270 || 69 || 1.334 || 0.0103 || 290 | |||
|- | |||
| 4.5 || 2220 || 67 || 1.332 || 0.0134 || 370 | |||
|- | |||
| 4.6 || 2170 || 65 || 1.330 || 0.0147 || 400 | |||
|- | |||
| 4.7 || 2130 || 64 || 1.330 || 0.0157 || 420 | |||
|- | |||
| 4.8 || 2080 || 62 || 1.330 || 0.0150 || 390 | |||
|- | |||
| 4.9 || 2040 || 61 || 1.328 || 0.0137 || 350 | |||
|- | |||
| 5.0 || 2000 || 60. || 1.325 || 0.0124 || 310 | |||
|- | |||
| 5.1 || 1960 || 59 || 1.322 || 0.0111 || 270 | |||
|- | |||
| 5.2 || 1920 || 58 || 1.317 || 0.0101 || 240 | |||
|- | |||
| 5.3 || 1890 || 57 || 1.312 || 0.0098 || 230 | |||
|- | |||
| 5.4 || 1850 || 56 || 1.305 || 0.0103 || 240 | |||
|- | |||
| 5.5 || 1820 || 55 || 1.298 || 0.0116 || 380 | |||
|- | |||
| 5.6 || 1790 || 54 || 1.289 || 0.0142 || 320 | |||
|- | |||
| 5.7 || 1750 || 53 || 1.277 || 0.0203 || 450 | |||
|- | |||
| 5.8 || 1720 || 52 || 1.262 || 0.0330 || 710 | |||
|- | |||
| 5.9 || 1690 || 51 || 1.248 || 0.0622 || 1300 | |||
|- | |||
| 6.0 || 1670 || 50. || 1.265 || 0.107 || 2200 | |||
|- | |||
| 6.1 || 1640 || 49 || 1.319 || 0.131 || 2700 | |||
|- | |||
| 6.2 || 1610 || 48.4 || 1.363 || 0.0880 || 1800 | |||
|- | |||
| 6.3 || 1590 || 47.6 || 1.357 || 0.0570 || 1100 | |||
|- | |||
| 6.4 || 1560 || 46.8 || 1.347 || 0.0449 || 880 | |||
|- | |||
| 6.5 || 1540 || 46.1 || 1.339 || 0.0392 || 760 | |||
|- | |||
| 6.6 || 1520 || 45.4 || 1.334 || 0.0356 || 680 | |||
|- | |||
| 6.7 || 1490 || 44.7 || 1.329 || 0.0337 || 630 | |||
|- | |||
| 6.8 || 1470 || 44.1 || 1.324 || 0.0327 || 600 | |||
|- | |||
| 6.9 || 1450 || 43.4 || 1.321 || 0.0322 || 590 | |||
|- | |||
| 7.0 || 1430 || 42.8 || 1.317 || 0.0320 || 570 | |||
|- | |||
| || || || || || | |||
|} | |||
The total refractive index of water is given as ''m = n + ik''. The absorption coefficient α' is used in the [[Beer–Lambert law]] with the prime here signifying [[Natural logarithm|base e]] convention. Values are for water at 25°C, and were obtained through various sources in the cited literature review.<ref>{{cite journal |last=Hale |first=George |last2=Querry |first2=Marvin |date=1 March 1973 |title=Optical Constants of Water in the 200-nm to 200μm Wavelength Region |url=http://www.opticsinfobase.org/view_article.cfm?gotourl=http%3A%2F%2Fwww%2Eopticsinfobase%2Eorg%2FDirectPDFAccess%2F7D9738F4-9529-8FFD-8FA40F6A0E3F9D01_17737%2Fao-12-3-555%2Epdf%3Fda%3D1%26id%3D17737%26seq%3D0%26mobile%3Dno&org= |journal=Applied Optics |publisher=Optical Society of America |volume=12 |issue=3 |pages=555–563 |doi=10.1364/AO.12.000555 |accessdate=8 January 2014}}</ref> | |||
==See also== | |||
*[[List of refractive indices]] | |||
*[[Absorption (electromagnetic radiation)]] | |||
*[[Atmospheric radiative transfer codes]] | |||
*[[Color of water]] | |||
*[[Electromagnetic absorption by water]] | |||
== Notes == | |||
{{reflist}} | |||
==References== | |||
{{refbegin}} | |||
*R. M. Pope and E. S. Fry, Absorption spectrum (380-700 nm) of pure water. II. Integrating cavity measurements, Appl. Opt., 36, 8710-8723, 1997. | |||
*Mobley, Curtis D., Light and water : radiative transfer in natural waters; based in part on collaborations with Rudolph W. Preisendorfer, San Diego, Academic Press, 1994, 592 p., ISBN 0-12-502750-8 | |||
{{refend}} | |||
[[Category:Optics]] | |||
[[Category:Physics-related lists]] | |||
[[Category:Scattering, absorption and radiative transfer (optics)]] | |||
[[Category:Atmospheric radiation]] |
Latest revision as of 13:52, 30 January 2014
Mining Engineer (Excluding Oil ) Truman from Alma, loves to spend time knotting, largest property developers in singapore developers in singapore and stamp collecting. Recently had a family visit to Urnes Stave Church. The refractive index of water at 20°C is 1.332986. The refractive index of normal ice is 1.31. (From List of refractive indices.) In general, an index of refraction is a complex number with both a real and imaginary part, where the latter indicates the strength of absorption loss at a particular wavelength. In the visible part of electromagnetic spectrum the imaginary part of the refractive index is very small. However, water and ice absorb in infrared and close the atmospheric window thereby contributing to the greenhouse effect
The absorption spectrum of pure water is used in numerous applications, including light scattering and absorption by ice crystals and cloud water droplets, theories of the rainbow, determination of the single scattering albedo, ocean color, and many others.
Quantitative description of the refraction index
Over the wavelengths from 0.2 μm to 1.2 μm, and over temperatures from −12°C to 500°C the real part of the index of refraction of water can be calculated by the following empirical expression: [1]
Where:
|
|
and the appropriate constants are = 0.244257733, = 0.00974634476, = −0.00373234996, = 0.000268678472, = 0.0015892057, = 0.00245934259, = 0.90070492, = −0.0166626219, = 273.15 K, = 1000 kg/m3, = 589 nm, = 5.432937, and = 0.229202.
In the above expression T is the absolute temperature of water (in K), is the wavelength of light in nm, is the density of the water in kg/m3, and n is the real part of the index of refraction of water.
Refractive Index, Real and Imaginary Parts for Liquid Water
Wavelength (μm) | Wavenumber (cm−1) | Frequency (THz) | n | k | α' (cm−1) |
---|---|---|---|---|---|
0.200 | Template:Val | Template:Val | 1.396 | Template:Val | 0.069 |
0.225 | Template:Val | Template:Val | 1.373 | Template:Val | 0.027 |
0.250 | Template:Val | Template:Val | 1.362 | Template:Val | 0.0168 |
0.275 | Template:Val | Template:Val | 1.354 | Template:Val | 0.0107 |
0.300 | Template:Val | 999 | 1.349 | Template:Val | Template:Val |
0.325 | Template:Val | 922 | 1.346 | Template:Val | Template:Val |
0.350 | Template:Val | 857 | 1.343 | Template:Val | Template:Val |
0.375 | Template:Val | 799 | 1.341 | Template:Val | Template:Val |
0.400 | Template:Val | 749 | 1.339 | Template:Val | Template:Val |
0.425 | Template:Val | 705 | 1.338 | Template:Val | Template:Val |
0.450 | Template:Val | 666 | 1.337 | Template:Val | Template:Val |
0.475 | Template:Val | 631 | 1.336 | Template:Val | Template:Val |
0.500 | Template:Val | 600 | 1.335 | Template:Val | Template:Val |
0.525 | Template:Val | 571 | 1.334 | Template:Val | Template:Val |
0.550 | Template:Val | 545 | 1.333 | Template:Val | Template:Val |
0.575 | Template:Val | 521 | 1.333 | Template:Val | Template:Val |
0.600 | Template:Val | 500 | 1.332 | Template:Val | Template:Val |
0.625 | Template:Val | 480 | 1.332 | Template:Val | Template:Val |
0.650 | Template:Val | 461 | 1.331 | Template:Val | Template:Val |
0.675 | Template:Val | 444 | 1.331 | Template:Val | Template:Val |
0.700 | Template:Val | 428 | 1.331 | Template:Val | Template:Val |
0.725 | Template:Val | 414 | 1.330 | Template:Val | 0.0159 |
0.750 | Template:Val | 400 | 1.330 | Template:Val | 0.0261 |
0.775 | Template:Val | 387 | 1.330 | Template:Val | 0.0240 |
0.800 | Template:Val | 375 | 1.329 | Template:Val | 0.0196 |
0.825 | Template:Val | 363 | 1.329 | Template:Val | 0.0282 |
0.850 | Template:Val | 353 | 1.329 | Template:Val | 0.0433 |
0.875 | Template:Val | 343 | 1.328 | Template:Val | 0.0562 |
0.900 | Template:Val | 333 | 1.328 | Template:Val | 0.0679 |
0.925 | Template:Val | 324 | 1.328 | Template:Val | 0.144 |
0.950 | Template:Val | 316 | 1.327 | Template:Val | 0.388 |
0.975 | Template:Val | 307 | 1.327 | Template:Val | 0.449 |
1.0 | Template:Val | 300 | 1.327 | Template:Val | 0.36 |
1.2 | 8300 | 250 | 1.324 | Template:Val | 1.0 |
1.4 | 7100 | 210 | 1.321 | Template:Val | 12 |
1.6 | 6200 | 190 | 1.317 | Template:Val | 6.7 |
1.8 | 5600 | 170 | 1.312 | Template:Val | 8.0 |
2.0 | 5000 | 150 | 1.306 | Template:Val | 69 |
2.2 | 4500 | 136 | 1.296 | Template:Val | 17 |
2.4 | 4200 | 125 | 1.279 | Template:Val | 50. |
2.6 | 3800 | 115 | 1.242 | Template:Val | 150 |
2.65 | 3770 | 113 | 1.219 | Template:Val | 318 |
2.70 | 3700 | 111 | 1.188 | 0.019 | 880 |
2.75 | 3640 | 109 | 1.157 | 0.059 | 2700 |
2.80 | 3570 | 107 | 1.142 | 0.115 | 5160 |
2.85 | 3510 | 105 | 1.149 | 0.185 | 8160 |
2.90 | 3450 | 103 | 1.201 | 0.268 | 11600 |
2.95 | 3390 | 102 | 1.292 | 0.298 | 12700 |
3.00 | 3330 | 100. | 1.371 | 0.272 | 11400 |
3.05 | 3280 | 98.3 | 1.426 | 0.240 | 9990 |
3.10 | 3230 | 96.7 | 1.467 | 0.192 | 7780 |
3.15 | 3170 | 95.2 | 1.483 | 0.135 | 5390 |
3.20 | 3120 | 93.7 | 1.478 | 0.0924 | 3630 |
3.25 | 3080 | 92.2 | 1.467 | 0.0610 | 2360 |
3.30 | 3030 | 90.8 | 1.450 | 0.0368 | 1400 |
3.35 | 2990 | 89.5 | 1.432 | 0.0261 | 979 |
3.40 | 2940 | 88.2 | 1.420 | 0.0195 | 721 |
3.45 | 2900 | 86.9 | 1.410 | 0.0132 | 481 |
3.50 | 2860 | 85.7 | 1.400 | 0.0094 | 340 |
3.6 | 2780 | 83 | 1.385 | 0.00515 | 180 |
3.7 | 2700 | 81 | 1.374 | 0.00360 | 120 |
3.8 | 2630 | 79 | 1.364 | 0.00340 | 110 |
3.9 | 2560 | 77 | 1.357 | 0.00380 | 120 |
4.0 | 2500 | 75 | 1.351 | 0.00460 | 140 |
4.1 | 2440 | 73 | 1.346 | 0.00562 | 170 |
4.2 | 2380 | 71 | 1.342 | 0.00688 | 210 |
4.3 | 2330 | 70. | 1.338 | 0.00845 | 250 |
4.4 | 2270 | 69 | 1.334 | 0.0103 | 290 |
4.5 | 2220 | 67 | 1.332 | 0.0134 | 370 |
4.6 | 2170 | 65 | 1.330 | 0.0147 | 400 |
4.7 | 2130 | 64 | 1.330 | 0.0157 | 420 |
4.8 | 2080 | 62 | 1.330 | 0.0150 | 390 |
4.9 | 2040 | 61 | 1.328 | 0.0137 | 350 |
5.0 | 2000 | 60. | 1.325 | 0.0124 | 310 |
5.1 | 1960 | 59 | 1.322 | 0.0111 | 270 |
5.2 | 1920 | 58 | 1.317 | 0.0101 | 240 |
5.3 | 1890 | 57 | 1.312 | 0.0098 | 230 |
5.4 | 1850 | 56 | 1.305 | 0.0103 | 240 |
5.5 | 1820 | 55 | 1.298 | 0.0116 | 380 |
5.6 | 1790 | 54 | 1.289 | 0.0142 | 320 |
5.7 | 1750 | 53 | 1.277 | 0.0203 | 450 |
5.8 | 1720 | 52 | 1.262 | 0.0330 | 710 |
5.9 | 1690 | 51 | 1.248 | 0.0622 | 1300 |
6.0 | 1670 | 50. | 1.265 | 0.107 | 2200 |
6.1 | 1640 | 49 | 1.319 | 0.131 | 2700 |
6.2 | 1610 | 48.4 | 1.363 | 0.0880 | 1800 |
6.3 | 1590 | 47.6 | 1.357 | 0.0570 | 1100 |
6.4 | 1560 | 46.8 | 1.347 | 0.0449 | 880 |
6.5 | 1540 | 46.1 | 1.339 | 0.0392 | 760 |
6.6 | 1520 | 45.4 | 1.334 | 0.0356 | 680 |
6.7 | 1490 | 44.7 | 1.329 | 0.0337 | 630 |
6.8 | 1470 | 44.1 | 1.324 | 0.0327 | 600 |
6.9 | 1450 | 43.4 | 1.321 | 0.0322 | 590 |
7.0 | 1430 | 42.8 | 1.317 | 0.0320 | 570 |
The total refractive index of water is given as m = n + ik. The absorption coefficient α' is used in the Beer–Lambert law with the prime here signifying base e convention. Values are for water at 25°C, and were obtained through various sources in the cited literature review.[2]
See also
- List of refractive indices
- Absorption (electromagnetic radiation)
- Atmospheric radiative transfer codes
- Color of water
- Electromagnetic absorption by water
Notes
43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro.
References
- R. M. Pope and E. S. Fry, Absorption spectrum (380-700 nm) of pure water. II. Integrating cavity measurements, Appl. Opt., 36, 8710-8723, 1997.
- Mobley, Curtis D., Light and water : radiative transfer in natural waters; based in part on collaborations with Rudolph W. Preisendorfer, San Diego, Academic Press, 1994, 592 p., ISBN 0-12-502750-8
- ↑ One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting
In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang
Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules
Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.
A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running
The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more
There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang - ↑ One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting
In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang
Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules
Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.
A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running
The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more
There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang