Index: Red-Edge Inflection Point 2

Red-Edge Inflection Point 2

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Basic information

Name	Red-Edge Inflection Point 2
Abbreviation	REIP2
Formula	$702+40\left(\frac{\left(\frac{\mathrm{667nm}+\mathrm{782nm}}{2}\right)-\mathrm{702nm}}{\mathrm{742nm}-\mathrm{702nm}}\right)$
Variables
Expl. of Variables
Wavelengths	667,702,742,782
Source	Original formula
Description

Visualisation of required spectral range

Sensors

Nr.	Name	Spectral Range	Bands	Specific Formula	Calculated	Comment
1	AISA	400-2506.7	498	$702+40\left(\frac{\left(\frac{\mathrm{117}+\mathrm{167}}{2}\right)-\mathrm{132}}{\mathrm{149}-\mathrm{132}}\right)$	Automatic
2	ARIES-1	400-2587	105	$702+40\left(\frac{\left(\frac{\mathrm{15}+\mathrm{21}}{2}\right)-\mathrm{16}}{\mathrm{18}-\mathrm{16}}\right)$	Automatic
3	ASAS	400-1020	62	$702+40\left(\frac{\left(\frac{\mathrm{27}+\mathrm{39}}{2}\right)-\mathrm{31}}{\mathrm{35}-\mathrm{31}}\right)$	Automatic
4	AVIRIS	355.15-2515	224	$702+40\left(\frac{\left(\frac{\mathrm{34}+\mathrm{46}}{2}\right)-\mathrm{37}}{\mathrm{42}-\mathrm{37}}\right)$	Automatic
5	AVIS	550-994	74	$702+40\left(\frac{\left(\frac{\mathrm{20}+\mathrm{39}}{2}\right)-\mathrm{26}}{\mathrm{32}-\mathrm{26}}\right)$	Automatic
6	CASI spectral	391-905.5	96	$702+40\left(\frac{\left(\frac{\mathrm{52}+\mathrm{74}}{2}\right)-\mathrm{59}}{\mathrm{66}-\mathrm{59}}\right)$	Automatic
7	CASI-2 Vegetation	441.53-869.54	12	$702+40\left(\frac{\left(\frac{4+\mathrm{10}}{2}\right)-5}{7-5}\right)$	Automatic
8	ChrisProbaM1	406-1003	62	$702+40\left(\frac{\left(\frac{\mathrm{A25}+\mathrm{A42}}{2}\right)-\mathrm{A30}}{\mathrm{A36}-\mathrm{A30}}\right)$	Automatic
9	ChrisProbaM3	438-1035	18	$702+40\left(\frac{\left(\frac{\mathrm{L8}+\mathrm{L14}}{2}\right)-\mathrm{L10}}{\mathrm{L12}-\mathrm{L10}}\right)$	Automatic
10	ChrisProbaM3A	420-910	18	$702+40\left(\frac{\left(\frac{\mathrm{L9}+\mathrm{L15}}{2}\right)-\mathrm{L12}}{\mathrm{L13}-\mathrm{L12}}\right)$	Automatic
11	ChrisProbaM4	486-796	18	$702+40\left(\frac{\left(\frac{\mathrm{C4}+\mathrm{C17}}{2}\right)-\mathrm{C9}}{\mathrm{C13}-\mathrm{C9}}\right)$	Automatic
12	ChrisProbaM5	438-1036	37	$702+40\left(\frac{\left(\frac{\mathrm{H8}+\mathrm{H22}}{2}\right)-\mathrm{H11}}{\mathrm{H17}-\mathrm{H11}}\right)$	Automatic
13	DAIS-7915	400-12600	79	$702+40\left(\frac{\left(\frac{\mathrm{15}+\mathrm{21}}{2}\right)-\mathrm{17}}{\mathrm{19}-\mathrm{17}}\right)$	Automatic
14	EnMap	420-2450	244	$702+40\left(\frac{\left(\frac{\mathrm{38}+\mathrm{56}}{2}\right)-\mathrm{44}}{\mathrm{50}-\mathrm{44}}\right)$	Automatic
15	HYDICE	400-2500	210	$702+40\left(\frac{\left(\frac{\mathrm{27}+\mathrm{39}}{2}\right)-\mathrm{31}}{\mathrm{35}-\mathrm{31}}\right)$	Automatic
16	Hyperion	349.896-2582.28	242	$702+40\left(\frac{\left(\frac{\mathrm{B32}+\mathrm{B43}}{2}\right)-\mathrm{B35}}{\mathrm{B39}-\mathrm{B35}}\right)$	Automatic
17	Orbview-4	450-2450	200	$702+40\left(\frac{\left(\frac{\mathrm{22}+\mathrm{34}}{2}\right)-\mathrm{26}}{\mathrm{30}-\mathrm{26}}\right)$	Automatic
18	PHI	400-1000.35	244	$702+40\left(\frac{\left(\frac{\mathrm{109}+\mathrm{156}}{2}\right)-\mathrm{123}}{\mathrm{140}-\mathrm{123}}\right)$	Automatic
19	Sentinel-2A	433-2280	13	$702+40\left(\frac{\left(\frac{4+7}{2}\right)-5}{6-5}\right)$	Automatic
20	VENμS	400-920	12	$702+40\left(\frac{\left(\frac{7+\mathrm{10}}{2}\right)-8}{9-8}\right)$	Automatic
21	WorldView-2	400-1040	9	$702+40\left(\frac{\left(\frac{\mathrm{Red}+\mathrm{NIR1}}{2}\right)-\mathrm{Pan}}{\mathrm{Red\_Edge\_Band}-\mathrm{Pan}}\right)$	Automatic

Applications

Nr.	Name	Comment
1	Hyperspectral remote sensing - Red-edge position
2	Vegetation
3	Vegetation - Chlorophyll

References

Nr.	Author/Title	Year	Comment
1	Herrmann, I.; Pimstein, A.; Karnieli, A.; Cohen, Y.; Alchanatis, V.; Bonfil, D. J. - LAI assessment of wheat and potato crops by VENµS and Sentinel-2 bands	2011
2	le Maire, G.; Francois, C.; Dufrene, E. - Towards universal broad leaf chlorophyll indices using PROSPECT simulated database and hyperspectral reflectance measurements	2004
3	Schlerf, M.; Atzberger, C.; Hill, J. - Remote sensing of forest biophysical variables using HyMap imaging spectrometer data	2005
4	Vogelmann, J.E.; Rock, B.N.; Moss, D.M. - Red Edge Spectral Measurements from Sugar Maple Leaves	1993

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Visualisation of Sensor-Bands

Index:

Sensors:

AISA

ARIES-1

ASAS

AVIRIS

AVIS

CASI spectral

CASI-2 Vegetation

ChrisProbaM1

ChrisProbaM3

ChrisProbaM3A

ChrisProbaM4

ChrisProbaM5

DAIS-7915

EnMap

HYDICE

Hyperion

Orbview-4

PHI

Sentinel-2A

VENμS

WorldView-2

List of Indices