skin reflectance

In anthropology, reflectometry devices are often used to gauge human skin color through the measurement of skin reflectance. These devices are typically pointed at the upper arm or forehead, with the emitted waves then interpreted at various percentages. Lower percentages represent lower skin reflectance and thus darker pigmentation, whereas higher percentages represent greater skin reflectance and therefore lighter pigmentation.{{cite journal|author1=Jablonski, N. G. |author2=G. Chaplin |title=The evolution of human skin coloration|journal=Journal of Human Evolution|date=2000|volume=39|issue=1|pages=57–106|url=http://anth.la.psu.edu/research/research-labs/jablonski-lab/research/JablonskiLabskin.pdf|accessdate=30 August 2017|doi=10.1006/jhev.2000.0403|pmid=10896812}}

Below are global estimates of skin reflectance percentages in various countries, populations and areas as observed and predicted by Jablonski and Chaplin.

class="wikitable sortable"
align=center

! # !! Country/Population/Area !! Hemisphere !! Reflectance site !! Observed reflectance at 685 nm !! Predicted reflectance at 685 nm

align=center | 1align=center | Afghanistan/Iranalign=center | Northern hemispherealign=center | Upper inner armalign=center | 55.7045.55
align=center | 2align=center | Algeria (Aures)align=center | Northern hemispherealign=center | Upper inner armalign=center | 58.0547.91
align=center | 3align=center | Australia (Darwin)align=center | Southern hemispherealign=center | Upper inner armalign=center | 19.3036.24
align=center | 4align=center | Belgiumalign=center | Northern hemispherealign=center | Upper inner armalign=center | 63.1465.66
align=center | 5align=center | Botswana (San)align=center | Southern hemispherealign=center | Upper inner armalign=center | 42.4039.45
align=center | 6align=center | Brazil (Caingan)align=center | Southern hemispherealign=center | Upper inner armalign=center | 49.4048.53
align=center | 7align=center | Brazil (Guaraní)align=center | Southern hemispherealign=center | Upper inner armalign=center | 47.2045.29
align=center | 8align=center | Burkina Faso (Kurumba)align=center | Northern hemispherealign=center | Upper inner armalign=center | 28.6034.23
align=center | 9align=center | Cambodiaalign=center | Northern hemispherealign=center | Upper inner armalign=center | 54.0038.99
align=center | 10align=center | Cameroon (Fali)align=center | Northern hemispherealign=center | Upper inner armalign=center | 21.5034.37
align=center | 11align=center | Chad (Sara)align=center | Northern hemispherealign=center | Upper inner armalign=center | 24.6034.77
align=center | 12align=center | China (Southern)align=center | Northern hemispherealign=center | Upper inner armalign=center | 59.1759.49
align=center | 13align=center | China (Tibet)align=center | Northern hemispherealign=center | Upper inner armalign=center | 54.7041.78
align=center | 14align=center | Eswatinialign=center | Northern hemispherealign=center | Upper inner armalign=center | 35.6044.62
align=center | 15align=center | Ethiopiaalign=center | Northern hemispherealign=center | Upper inner armalign=center | 31.7032.70
align=center | 16align=center | Ethiopia (Highland)align=center | Northern hemispherealign=center | Upper inner armalign=center | 33.5531.35
align=center | 17align=center | Germany (Mainz)align=center | Northern hemispherealign=center | Upper inner armalign=center | 66.9065.21
align=center | 18align=center | Greenland (Southern)align=center | Northern hemispherealign=center | Upper inner armalign=center | 55.7070.31
align=center | 19align=center | Indiaalign=center | Northern hemispherealign=center | Upper inner armalign=center | 44.6048.85
align=center | 20align=center | India (Bengal)align=center | Northern hemispherealign=center | Upper inner armalign=center | 49.7344.33
align=center | 21align=center | India (Goa)align=center | Northern hemispherealign=center | Upper inner armalign=center | 46.4038.93
align=center | 22align=center | India (Nagpur)align=center | Northern hemispherealign=center | Upper inner armalign=center | 41.3041.53
align=center | 23align=center | India (Northern)align=center | Northern hemispherealign=center | Upper inner armalign=center | 53.2644.23
align=center | 24align=center | India (Orissa)align=center | Northern hemispherealign=center | Upper inner armalign=center | 32.0541.52
align=center | 25align=center | India (Punjab)align=center | Northern hemispherealign=center | Upper inner armalign=center | 54.2447.89
align=center | 26align=center | India (Rajasthan)align=center | Northern hemispherealign=center | Upper inner armalign=center | 52.0042.19
align=center | 27align=center | India (Southern)align=center | Northern hemispherealign=center | Upper inner armalign=center | 46.7037.60
align=center | 28align=center | Iraq/Syria (Kurds)align=center | Northern hemispherealign=center | Upper inner armalign=center | 61.1251.50
align=center | 29align=center | Ireland (Ballinlough)align=center | Northern hemispherealign=center | Upper inner armalign=center | 65.2067.11
align=center | 30align=center | Ireland (Carnew)align=center | Northern hemispherealign=center | Upper inner armalign=center | 64.5065.84
align=center | 31align=center | Ireland (Longford)align=center | Northern hemispherealign=center | Upper inner armalign=center | 65.0066.99
align=center | 32align=center | Ireland (Rossmore)align=center | Northern hemispherealign=center | Upper inner armalign=center | 64.7566.73
align=center | 33align=center | Israelalign=center | Northern hemispherealign=center | Upper inner armalign=center | 58.2048.67
align=center | 34align=center | Israel (Kurdish Jews){{cite journal|author=J. A. Lourie|title=Physical characteristics of Yemenite and Kurdish Jews in Israel|journal=Philosophical Transactions of the Royal Society of London B: Biological Sciences|date=1973|volume=266|issue=876|pages=101–112|url=http://docdro.id/hbshH9R|accessdate=30 August 2017|doi=10.1098/rstb.1973.0039|pmid=4148280|bibcode=1973RSPTB.266..101L|doi-access=|url-access=subscription}}align=center | Northern hemispherealign=center | Medial aspect of upper armalign=center | 54.89–60.02
align=center | 35align=center | Israel (Yemeni Jews)align=center | Northern hemispherealign=center | Medial aspect of upper armalign=center | 53.15–56.94
align=center | 36align=center | Japan (Central)align=center | Northern hemispherealign=center | Upper inner armalign=center | 55.4258.51
align=center | 37align=center | Japan (Hidakka)align=center | Northern hemispherealign=center | Upper inner armalign=center | 59.1063.58
align=center | 38align=center | Japan (Northern)align=center | Northern hemispherealign=center | Upper inner armalign=center | 54.9061.34
align=center | 39align=center | Japan (Southwest)align=center | Northern hemispherealign=center | Upper inner armalign=center | 53.5556.68
align=center | 40align=center | Jordanalign=center | Northern hemispherealign=center | Upper inner armalign=center | 55.4258.51
align=center | 41align=center | Jordan (Arabs){{cite journal|author1=Sunderland, E. |author2=Elizabeth Coope |title=Genetic studies in Jordan|journal=Philosophical Transactions of the Royal Society of London B: Biological Sciences|volume=266|issue=876|date=1973|pages=207–220|url=http://docdro.id/NlFbF0u|accessdate=30 August 2017|bibcode=1973RSPTB.266..207S|doi=10.1098/rstb.1973.0048|pmid=4148289 |doi-access=|url-access=subscription}}align=center | Northern hemispherealign=center | Foreheadalign=center | 44.2–47.1
align=center | 42align=center | Jordan (Arabs)align=center | Northern hemispherealign=center | Medial aspect of upper armalign=center | 48.0–52.7
align=center | 43align=center | Jordan (Chechen)align=center | Northern hemispherealign=center | Foreheadalign=center | 50.9–52.5
align=center | 44align=center | Jordan (Chechen)align=center | Northern hemispherealign=center | Medial aspect of upper armalign=center | 51.9–55.0
align=center | 45align=center | Jordan (Druze, males)align=center | Northern hemispherealign=center | Foreheadalign=center | 48.5
align=center | 46align=center | Jordan (Druze, males)align=center | Northern hemispherealign=center | Medial aspect of upper armalign=center | 52.8
align=center | 47align=center | Kenyaalign=center | Northern hemispherealign=center | Upper inner armalign=center | 32.4034.21
align=center | 48align=center | Lebanonalign=center | Northern hemispherealign=center | Upper inner armalign=center | 58.2050.74
align=center | 49align=center | Liberiaalign=center | Northern hemispherealign=center | Upper inner armalign=center | 29.4040.52
align=center | 50align=center | Libya (Cyrenaica)align=center | Northern hemispherealign=center | Upper inner armalign=center | 53.5044.19
align=center | 51align=center | Libya (Fezzan)align=center | Northern hemispherealign=center | Upper inner armalign=center | 44.0041.31
align=center | 52align=center | Libya (Tripoli)align=center | Northern hemispherealign=center | Upper inner armalign=center | 54.4048.83
align=center | 53align=center | Malawialign=center | Southern hemispherealign=center | Upper inner armalign=center | 27.0038.67
align=center | 54align=center | Mali (Dogon)align=center | Northern hemispherealign=center | Upper inner armalign=center | 34.1034.54
align=center | 55align=center | Moroccoalign=center | Northern hemispherealign=center | Upper inner armalign=center | 54.8549.09
align=center | 56align=center | Mozambique (Chopi)align=center | Southern hemispherealign=center | Upper inner armalign=center | 19.4543.84
align=center | 57align=center | Namibiaalign=center | Southern hemispherealign=center | Upper inner armalign=center | 25.5538.29
align=center | 58align=center | Namibia (Okavango)align=center | Southern hemispherealign=center | Upper inner armalign=center | 22.9238.63
align=center | 59align=center | Namibia (Reheboth Baster)align=center | Southern hemispherealign=center | Upper inner armalign=center | 32.9036.49
align=center | 60align=center | Nepal (Eastern)align=center | Northern hemispherealign=center | Upper inner armalign=center | 50.4246.31
align=center | 61align=center | Netherlandsalign=center | Northern hemispherealign=center | Upper inner armalign=center | 67.3765.94
align=center | 62align=center | Nigeria (Ebo)align=center | Northern hemispherealign=center | Upper inner armalign=center | 28.2041.86
align=center | 63align=center | Nigeria (Yoruba)align=center | Northern hemispherealign=center | Upper inner armalign=center | 27.4039.62
align=center | 64align=center | Pakistanalign=center | Northern hemispherealign=center | Upper inner armalign=center | 52.3044.15
align=center | 65align=center | Papua New Guineaalign=center | Southern hemispherealign=center | Upper inner armalign=center | 35.3037.26
align=center | 66align=center | Papua New Guinea (Goroka)align=center | Southern hemispherealign=center | Upper inner armalign=center | 33.3034.20
align=center | 67align=center | Papua New Guinea (Karker)align=center | Southern hemispherealign=center | Upper inner armalign=center | 32.0037.25
align=center | 68align=center | Papua New Guinea (Lufa)align=center | Southern hemispherealign=center | Upper inner armalign=center | 31.2036.88
align=center | 69align=center | Papua New Guinea (Mount Hagan)align=center | Southern hemispherealign=center | Upper inner armalign=center | 35.3531.56
align=center | 70align=center | Papua New Guinea (Port Moresby)align=center | Southern hemispherealign=center | Upper inner armalign=center | 41.0035.45
align=center | 71align=center | Peru (Maranon)align=center | Southern hemispherealign=center | Upper inner armalign=center | 43.0542.28
align=center | 72align=center | Peru (Nunoa)align=center | Southern hemispherealign=center | Upper inner armalign=center | 47.7034.89
align=center | 73align=center | Philippines (Manila)align=center | Northern hemispherealign=center | Upper inner armalign=center | 54.1041.53
align=center | 74align=center | Russia (Chechen)align=center | Northern hemispherealign=center | Upper inner armalign=center | 53.4559.04
align=center | 75align=center | Saudi Arabiaalign=center | Northern hemispherealign=center | Upper inner armalign=center | 52.5038.65
align=center | 76align=center | South Africaalign=center | Northern hemispherealign=center | Upper inner armalign=center | 42.5045.67
align=center | 77align=center | South Africa (Cape)align=center | Northern hemispherealign=center | Upper inner armalign=center | 50.9650.71
align=center | 78align=center | South Africa (Hottentot)align=center | Northern hemispherealign=center | Upper inner armalign=center | 46.8043.91
align=center | 79align=center | South Africa (San Central)align=center | Northern hemispherealign=center | Upper inner armalign=center | 43.7541.14
align=center | 80align=center | Spain (Basques)align=center | Northern hemispherealign=center | Upper inner armalign=center | 65.7062.38
align=center | 81align=center | Spain (Leon)align=center | Northern hemispherealign=center | Upper inner armalign=center | 64.6660.80
align=center | 82align=center | Sudanalign=center | Northern hemispherealign=center | Upper inner armalign=center | 35.5033.45
align=center | 83align=center | Tanzania (Nyatura)align=center | Northern hemispherealign=center | Upper inner armalign=center | 25.8034.12
align=center | 84align=center | Tanzania (Sandewe)align=center | Northern hemispherealign=center | Upper inner armalign=center | 28.9032.13
align=center | 85align=center | Tunisiaalign=center | Northern hemispherealign=center | Upper inner armalign=center | 56.3052.03
align=center | 86align=center | Turkeyalign=center | Northern hemispherealign=center | Upper inner armalign=center | 59.1555.56
align=center | 87align=center | United Kingdom (Cumberland)align=center | Northern hemispherealign=center | Upper inner armalign=center | 66.7566.99
align=center | 88align=center | United Kingdom (London)align=center | Northern hemispherealign=center | Upper inner armalign=center | 62.3065.84
align=center | 89align=center | United Kingdom (Northern)align=center | Northern hemispherealign=center | Upper inner armalign=center | 66.1067.49
align=center | 90align=center | United Kingdom (Wales)align=center | Northern hemispherealign=center | Upper inner armalign=center | 65.0066.15
align=center | 91align=center | Vietnamalign=center | Northern hemispherealign=center | Upper inner armalign=center | 55.9043.59
align=center | 92align=center | Zairealign=center | Northern hemispherealign=center | Upper inner armalign=center | 33.2037.46
align=center | 93align=center | Zaire (Konda)align=center | Northern hemispherealign=center | Upper inner armalign=center | 29.4039.43

References