Index: Normalized Difference 415/435 Normalized Phaeophytinization Index , Normalized difference pigment index NDPI

Normalized Difference 415/435 Normalized Phaeophytinization Index , Normalized difference pigment index NDPI

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Basic information

Name	Normalized Difference 415/435 Normalized Phaeophytinization Index , Normalized difference pigment index NDPI
Abbreviation	NPQI
Formula	$\frac{\mathrm{415nm}-\mathrm{435nm}}{\mathrm{415nm}+\mathrm{435nm}}$
Variables
Expl. of Variables
Wavelengths	415,435
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	$\frac{7-\mathrm{16}}{7+\mathrm{16}}$	Automatic
2	ARIES-1	400-2587	105	$\frac{1-2}{1+2}$	Automatic
3	ASAS	400-1020	62	$\frac{2-4}{2+4}$	Automatic
4	AVIRIS	355.15-2515	224	$\frac{7-9}{7+9}$	Automatic
5	CASI 550	400-1000	288	$\frac{8-\mathrm{17}}{8+\mathrm{17}}$	Automatic
6	CASI spectral	391-905.5	96	$\frac{5-9}{5+9}$	Automatic
7	DAIS-7915	400-12600	79	$\frac{1-2}{1+2}$	Automatic
8	GLI	375-12500	36	$\frac{3-\mathrm{20}}{3+\mathrm{20}}$	Automatic
9	HYDICE	400-2500	210	$\frac{2-4}{2+4}$	Automatic
10	Hyperion	349.896-2582.28	242	$\frac{\mathrm{B7}-\mathrm{B9}}{\mathrm{B7}+\mathrm{B9}}$	Automatic
11	IRS-P4	402-1700	9	$\frac{1-2}{1+2}$	Automatic
12	MERSI	402-12750	20	$\frac{6-7}{6+7}$	Automatic
13	OCM-2	402-885	8	$\frac{1-2}{1+2}$	Automatic
14	PHI	400-1000.35	244	$\frac{6-\mathrm{14}}{6+\mathrm{14}}$	Automatic
15	VENμS	400-920	12	$\frac{1-2}{1+2}$	Automatic

Applications

Nr.	Name	Comment
1	Vegetation
2	Vegetation - Chlorophyll
3	Vegetation - Stress

References

Nr.	Author/Title	Year	Comment
1	Barnes, J. D.; Balaguer, L.; Manrique, E.; Elvira, S.; Davison, A. W. - A Reappraisal of the Use of Dmso for the Extraction and Determination of Chlorophylls-a and Chlorophylls-B in Lichens and Higher-Plants	1992
2	le Maire, G.; Francois, C.; Dufrene, E. - Towards universal broad leaf chlorophyll indices using PROSPECT simulated database and hyperspectral reflectance measurements	2004
3	Penuelas J., Baret F., Filella I. - Semi-empirical indices to assess carotenoids/chlorophyll a ratio from leaf spectral reflectance	1995
4	Peñuelas, J.; Filella, I. - Visible and near-infrared reflectance techniques for diagnosing plant physiological status	1998
5	Royo, C.; Aparicio, N.; Villegas, D.; Casadesus, J.; Monneveux, P.; Araus, J. L. - Usefulness of spectral reflectance indices as durum wheat yield predictors under contrasting Mediterranean conditions	2003
6	Zarco-Tejada, P. J.; Miller, J. R.; Noland, T. L.; Mohammed, G. H.; Sampson, P. H. - Scaling-up and model inversion methods with narrow-band optical indices for chlorophyll content estimation in closed forest canopies with hyperspectral data	2001

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Visualisation of Sensor-Bands

Index:

Sensors:

AISA

ARIES-1

ASAS

AVIRIS

CASI 550

CASI spectral

DAIS-7915

GLI

HYDICE

Hyperion

IRS-P4

MERSI

OCM-2

PHI

VENμS

List of Indices