Cite as:
Scholz, S.; Raffelsbauer, V. & Trachte, K. (2022): <b>ecsf pasture orthomosaic NDVI March 2022.</b> <i>Available online (http://www.tropicalmountainforest.org/data_pre.do?citid=1955) from DFG-FOR816dw.</i>
Resource Description
Title:
ecsf pasture orthomosaic NDVI March 2022
Short Name:
ecsf_pasture_NDVI_032022
FOR816dw ID:
1955
Publication Date:
2022-07-20
Last Update Date:
2022-07-22
License and Usage Rights:
RESPECT data usage agreement
Temporal Coverage:
Begin:
2022-03-25
End:
2022-03-25
Geographic Coverage:
Geographic Description:
ECSF pasture
Bounding Coordinates:
max latitude:
Information not publicly available, please log in.
Max:
min longitude:
Information not publicly available, please log in.
max longitude:
Information not publicly available, please log in.
Elevation
min latitude:
Information not publicly available, please log in.
Min:
Dataset creator(s):
Individual:
Sebastian Scholz
Contact:
email:
scholse1 <at> b-tu.de
Germany
Individual:
Volker Raffelsbauer
Contact:
email:
v.raffelsbauer <at> gmx.de
03044 Cottbus
Germany
Individual:
Katja Trachte
Contact:
email:
katja.trachte <at> b-tu.de
Atmospheric Processes
Burger Chaussee 2
Campus Nord, LG 4/3
Brandenburg University of Technology Cottbus-Senftenberg
03044 Cottbus
Germany
Abstract:
Orthomosaic containing georeferenced NDVI Values from ecsf pasture aquired with a low flying UAV.
Keywords:
| pasture | ECSF |
Associated entities to this dataset:
Attribute Name -- Attribute Label
Unit
Attribute definition
NDVI
--
Normalized Digital Vegetation Index
Unitless
Enhanced Vegetation Index based on near infrared and red.
Method
(Sampling/processing description of the values of
this attribute by one ore more steps.)
--- Step
1
---
Title
:
orthomosaic from multispectral droneimages
Description
:
Drone images where taken with an automated mapping software (UGCS) with following Parameters:
Flight speed: 5m/s
Camera: DJI P4 Multispectral
GSD: 4cm
Forward overlap: 75%
Side overlap: 60%
AGL tolerance: 2m
Double grid: no
Camera Tilt: 85°
Singleband Images(Band1:Blue,Band2:Green,Band3:Red,Band4:RedEdge,Band5:NIR) where postprocessed with Agisoft Metashape:
Calibration: Using Sunsensor (DJI P4 MS)
Stiching: Batchprocess
Batchprocess XML from Agisoft:
<?xml version="1.0" encoding="UTF-8"?>
<batchjobs version="1.8.3">
<job name="AlignPhotos" target="all">
<mask_tiepoints>false</mask_tiepoints>
</job>
<job name="BuildDenseCloud" target="all">
<downscale>2</downscale>
<reuse_depth>true</reuse_depth>
</job>
<job name="BuildDem" target="all">
<downscale>2</downscale>
<interpolation>2</interpolation>
<reuse_depth>true</reuse_depth>
</job>
<job name="BuildOrthomosaic" target="all">
<surface_data>4</surface_data>
</job>
</batchjobs>
NDVI Index calculated as Rastertransformation in the following way:
(Band5-Band3)/(Band5+Band3)
Exported as tif with Agisoft Batchprocess
Batchprocess XML:
<batchjobs version="1.8.3">
<job name="ExportOrthomosaic" target="list" chunks="1">
<image_format>2</image_format>
<path>C:/Users/Metashape/Desktop/{projectname}_{chunklabel}.tif</path>
<raster_transform>1</raster_transform>
<save_alpha>false</save_alpha>
</job>
</batchjobs>
Instrumentation:
Instrument:
Description: Quadcopter with Multispectral Camera:
Band1:Blue
Band2:Green
Band3:Red
Band4:RedEdge
Band5:NIR
|
Instrument: DJI Phantom Pro 4 Multispectral
|
Vendor: DJI
|
Metadata Provider:
Individual:
Katja Trachte
Contact:
email:
katja.trachte <at> b-tu.de
Atmospheric Processes
Burger Chaussee 2
Campus Nord, LG 4/3
Brandenburg University of Technology Cottbus-Senftenberg
03044 Cottbus
Germany
Contact Person:
Individual:
Sebastian Scholz
Contact:
email:
scholse1 <at> b-tu.de
Germany
Online Distribution:
Download File:
http://www.tropicalmountainforest.org/data_pre.do?citid=1955
Data Publisher:
Organization:
DFG-FOR816 Data Warehouse - University of Marburg, Department of Geography
Contact:
email:
webmaster <at> tropicalmountainforest.org
www.tropicalmountainforest.org
Marburg
Germany
