NAIROBI

Location

lon / lat [deg]: 36.8653 / -1.3389

Source network: AERONET

Geostationary surface albedo (GSA) data

“+000”

“+057/+063”

Landcover information (based on ESA CCI landcover data)

Landcover fractions @ 2km distance

Landcover fractions @ 20 km distance

Legend

Distance to open water bodies [km]:	18.73
Distance to urban areas [km]:	0.15

Radius: 1 km

Number of landcover classes:	2
Dominant landcover type:	190: urban areas
Fraction of dominant landcover type [%]:	53.0

Radius: 2 km

Number of landcover classes:	3
Dominant landcover type:	190: urban areas
Fraction of dominant landcover type [%]:	57.0

Radius: 5 km

Number of landcover classes:	4
Dominant landcover type:	190: urban areas
Fraction of dominant landcover type [%]:	51.0

Radius: 10 km

Number of landcover classes:	5
Dominant landcover type:	190: urban areas
Fraction of dominant landcover type [%]:	47.0

Radius: 20 km

Number of landcover classes:	6
Dominant landcover type:	10: cropland, rainfed
Fraction of dominant landcover type [%]:	48.0

Disturbances

Heterogeneity analysis

The heterogeneity analysis provides information about the spatial and temporal heterogeneity of the site.

Topography

Roman et al. (2009) index
St	8.44433928337e-07
Rcv	0.602076133204
Rse	0.0
Rst	0.000493530145987
Rsv	3552675.21886

Height range @ 1km [m]	11
Height range @ 2km [m]	14
Height range @ 5km [m]	38
Height range @ 10km [m]	-999
Height range @ 20km [m]	-999

Variance slope @ 1 km	36
Variance slope @ 2 km	31
Variance slope @ 5 km	34
Variance slope @ 10 km	-999
Variance slope @ 20 km	-999

NDVI (max. NDVI composite)

Roman et al. (2009) index
St	7.74013434592e-07
Rcv	0.00715387510917
Rse	0.0
Rst	0.306481496128
Rsv	3875901.40321

NDVI range @ 1km [-]	0.07
NDVI range @ 2km [-]	0.14
NDVI range @ 5km [-]	0.2
NDVI range @ 10km [-]	0.2
NDVI range @ 20km [-]	0.24

Variance slope @ 1 km	0.000251091481841
Variance slope @ 2 km	0.000346732004344
Variance slope @ 5 km	0.000415518192715
Variance slope @ 10 km	0.000434489384793
Variance slope @ 20 km	0.000286380965728

NDVI (min. NDVI composite)I

Roman et al. (2009) index
St	0.00291924743924
Rcv	0.235080120894
Rse	0.0
Rst	7.39481007948e-05
Rsv	1027.42696175

NDVI range @ 1km [-]	0.02
NDVI range @ 2km [-]	0.03
NDVI range @ 5km [-]	0.04
NDVI range @ 10km [-]	0.12
NDVI range @ 20km [-]	0.24

NDVI slope @ 1 km	0.000144631630757
NDVI slope @ 2 km	0.000197030438837
NDVI slope @ 5 km	0.000226744634754
NDVI slope @ 10 km	0.000282650946864
NDVI slope @ 20 km	0.000345839382325

Temporal stability analysis

+000 deg (BHR)

BHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	-0.00364456838306
Ordinary least square:	-0.00287619404491

Probabilities that GCOS criteria is met:

Weighted least square:	4.6 %
Ordinary least square:	5.2 %

DHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	-0.00799410445758
Ordinary least square:	-0.000234108651936

Probabilities that GCOS criteria is met:

Weighted least square:	2.6 %
Ordinary least square:	7.4 %

+057/+063 deg (BHR)

BHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	-0.0154561194845
Ordinary least square:	-0.0882821259849

Probabilities that GCOS criteria is met:

Weighted least square:	4.0 %
Ordinary least square:	4.5 %

DHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	-0.0153800906572
Ordinary least square:	-0.0767896547924

Probabilities that GCOS criteria is met:

Weighted least square:	3.6 %
Ordinary least square:	4.4 %

Temporal anomaly analyis

The variance of the temporal anomalies provides an additional measure about the stability of the signal AFTER removal of the mean seasonal cylce.

+000 deg

+057/+063 deg

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