Talk:MSG-SEVIRI

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Product \ sensor NOAA-AVHRR METOP-AVHRR SPOT- VGT TERRA-MODIS
Temporal:Since April 98 Aug. 81 Jan. 08 Jan. 00
Main periodicities S10 / S30 S10 / S30 S10 / S30 S10 / S30
Spatial:Resolution 1km 1km 1km 250m
A. ORIGINAL RS-DATA
Surface reflectances: BLUE + +
RED + + + +
NIR + + +
SWIR + + +
Brightness temperature MIR + +
TIR1 + +
TIR2 + +
Angles: Sun/View (\thetas, \varphis, \thetas, \varphi) + + + +
Quality:Status mask + + + +
Time Grid/Segment_ID + + + +
Nr. good obs. for composite + + + +
Geolocation quality (+DB) + + +
B. ACTUAL VEG. STATE INDICATORS
TS Surface Temperature + +
NDVI Normalized Difference VI + + + +
fAPAR Fraction of absorbed PAR + + + +
DMP Dry Matter Productivity + + + +
C. DIFFERENCES to previous year
TS AD / RD + +
NDVI AD / RD + + + +
fAPAR AD / RD + + + +
DMP AD / RD + + + +
D. HISTORICAL Min, max, µ, \sigma, N
TS +
NDVI (+ deciles for VPI) + + +
fAPAR + + +
DMP + + +
E. DIFFERENCES to historical year
TS AD / RD +
NDVI AD / RD / VCI / VPI + + +
fAPAR AD / RD + + +
DMP AD / RD + + +
F. TIME SERIES ANALYSIS (NDVI/fAPAR)
Phenology: start/end of growing season(s) + + +
Most similar year compared to actual one + + +
Cluster classifications + + +


gamma = \frac{2\pi }{365} \left(day\_ of\_ year-1\right)
eqtime=229.18(0.000075+0.001868\cos \gamma -0.032077\sin \gamma -0.014615\cos 2\gamma -0.040849\sin 2\gamma)
delta =-\arcsin \left(\sin \left(\frac{23.45\pi }{180} \right)\cos \left(2\pi \frac{day\_ of\_ year+10}{365} \right)\right)
ha=\pm \arccos \left(-\tan (\delta )\tan (latitude)\right)