HOWLAND

Location

lon / lat [deg]: -68.7333 / 45.2

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]:	5.03
Distance to urban areas [km]:	3.41

Radius: 1 km

Number of landcover classes:	2
Dominant landcover type:	70: Tree cover, needleleaved, evergreen, closed to open (>15%)
Fraction of dominant landcover type [%]:	85.0

Radius: 2 km

Number of landcover classes:	5
Dominant landcover type:	70: Tree cover, needleleaved, evergreen, closed to open (>15%)
Fraction of dominant landcover type [%]:	71.0

Radius: 5 km

Number of landcover classes:	5
Dominant landcover type:	70: Tree cover, needleleaved, evergreen, closed to open (>15%)
Fraction of dominant landcover type [%]:	58.0

Radius: 10 km

Number of landcover classes:	7
Dominant landcover type:	70: Tree cover, needleleaved, evergreen, closed to open (>15%)
Fraction of dominant landcover type [%]:	39.0

Radius: 20 km

Number of landcover classes:	8
Dominant landcover type:	90: Tree cover, mixed leaf type
Fraction of dominant landcover type [%]:	42.0

Disturbances

Heterogeneity analysis

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

Topography

Roman et al. (2009) index
St	3.02679606607
Rcv	0.455065641355
Rse	0.0
Rst	-1.04717949076e-05
Rsv	-0.536070939548

Height range @ 1km [m]	25
Height range @ 2km [m]	32
Height range @ 5km [m]	71
Height range @ 10km [m]	-999
Height range @ 20km [m]	-999

Variance slope @ 1 km	74
Variance slope @ 2 km	92
Variance slope @ 5 km	130
Variance slope @ 10 km	-999
Variance slope @ 20 km	-999

NDVI (max. NDVI composite)

Roman et al. (2009) index
St	1.37008299947
Rcv	0.672799468396
Rse	0.0
Rst	-0.516849073899
Rsv	-0.999999822915

NDVI range @ 1km [-]	0.02
NDVI range @ 2km [-]	0.02
NDVI range @ 5km [-]	0.04
NDVI range @ 10km [-]	0.06
NDVI range @ 20km [-]	0.06

Variance slope @ 1 km	0.000111875665618
Variance slope @ 2 km	0.000132137291843
Variance slope @ 5 km	8.0234055923e-05
Variance slope @ 10 km	2.43473103063e-05
Variance slope @ 20 km	9.83843866951e-06

NDVI (min. NDVI composite)I

Roman et al. (2009) index
St	5.87058507113
Rcv	-0.19655771803
Rse	0.0
Rst	0.0783346811643
Rsv	-0.236129920328

NDVI range @ 1km [-]	0.11
NDVI range @ 2km [-]	0.16
NDVI range @ 5km [-]	0.12
NDVI range @ 10km [-]	0.2
NDVI range @ 20km [-]	0.23

NDVI slope @ 1 km	0.000962858237718
NDVI slope @ 2 km	0.00120979621726
NDVI slope @ 5 km	0.000873084680338
NDVI slope @ 10 km	0.000351290665205
NDVI slope @ 20 km	0.000162845704511

Temporal stability analysis

+000 deg (BHR)

BHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	-99999.0
Ordinary least square:	-99999.0

Probabilities that GCOS criteria is met:

Weighted least square:	-99999.0 %
Ordinary least square:	-99999.0 %

DHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	-99999.0
Ordinary least square:	-99999.0

Probabilities that GCOS criteria is met:

Weighted least square:	-99999.0 %
Ordinary least square:	-99999.0 %

+057/+063 deg (BHR)

BHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	None
Ordinary least square:	None

Probabilities that GCOS criteria is met:

Weighted least square:	None %
Ordinary least square:	None %

DHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	None
Ordinary least square:	None

Probabilities that GCOS criteria is met:

Weighted least square:	None %
Ordinary least square:	None %

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.