Restoration Status Summary (GWB_RSS)

This module conducts the Restoration Status Summary analysis. It calculates key attributes of the current network status, composed of foreground (forest) objects. It also provides the normalized degree of network coherence. The result are tabular summary statistics. Details on the methodology and input/output options can be found in the Restoration Planner product sheet.

Requirements

A single band (Geo)TIFF image in data format byte.

• 0 byte: missing (optional)

• 1 byte: background

• 2 byte: foreground (forest)

Warning

Any other values are considered as missing data

Processing parameter options are stored in the file input/rss-parameters.txt.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; GWB_RESTORATION-STATUS parameter file:
;; NOTE: do NOT delete or add any lines in this parameter file!
;;
;; RSS: Restoration Status = network coherenceof image objetcs
;; Input image requirements: 1b-background, 2b-foreground, optional: 0b-missing
;;
;; Please specify entry at lines 14 ONLY using the following options:
;; line 14: Foreground connectivity: 8 default) or 4
;;
;; an example parameter file with default output would look like this:
;; 8
****************************************************************************
8
****************************************************************************

Example

The result is stored in a single csv-file in the directory output, listing the statistics for each input image in one line, accompanied by a log-file providing details on computation time and processing success of each input image.

GWB_RSS command and listing of results in the directory output:

$ GWB_RSS -i=$HOME/input -o=$HOME//output
IDL 9.1.0 (linux x86_64 m64).
(c) 2024, NV5 Geospatial Solutions, Inc.

GWB_RSS using:
dir_input= $HOME//input
dir_output= $HOME//output
% Loaded DLM: TIFF.
Done with: clc3class.tif
Done with: example.tif
Done with: gscinput.tif
RSS finished sucessfully

$ ls -R output/
output/:
rss8.csv  rss8.log

Summary statistics for each input image showing the normalized degree of network coherence and additional key network parameters:

FNAME	AREA	RAC[%]	NR_OBJ	LARG_OBJ	APS	CNOA	ECA	COH[%]	REST_POT[%]
clc3class.tif	957879.00	23.946975	164	176747	5840.7256	180689	281211.93	29.357771	70.642229
example.tif	428490.00	42.860572	2850	214811	150.34737	311712	221292.76	51.644789	48.355211

Remarks

• GWB_RSS provides a succinct summary of key network status attributes including area, extent, patch summary statistics, equivalent connected area, degree of network coherence, and the restoration potential.

• As a normalized index, Coherence or its complement Restoration Potential, can be used to directly compare the integrity of different networks or to quantitatively assess changes in network integrity over time.

• The provision of key network status attributes is essential and forms the base for any restoration planning.

• The desktop application GuidosToolbox provides additional, interactive tools guiding restoration planning.

With the provision of a normalized degree of network coherence and restoration potential, GWB_RSS provides a powerful tool to measure and rank the integrity of forest networks for different regions of interest. This feature may be useful to set priorities for restoration planning or to measure implementation progress and overall success of policy regulations.