Download presentation
Presentation is loading. Please wait.
Published byJesse Webster Modified over 9 years ago
1
U.S. Department of the Interior U.S. Geological Survey Monthly Progress for Africa GCEV2 Jun Xiong, Prasad, Pardha 23 October, 2014
2
Content GCE V2.3 Product Accuracy Assessment GCE V2.3 Documents
3
GCE V2.3 nominal 2010 for Africa
4
GCEV2.03 Characteristics Geographic WGS84 projection Columns = 39574 Rows = 32140 Pixel size = 250 meters / 0.00224579 Dd Upper left x, y = -25.36837711, 37.34827711 Dd Lower right x, y = 63.50423673, - 34.82914002 Dd Projection = Geographic (Lat/Lon) Spheroid = WGS84 Layers Global Croplands Extent, including croplands / non-croplands Global Croplands Intensity, including single, double, continuous (class 3) and mixed Global Croplands Watering, including irrigated and rainfed Global Croplands Primary Type, TBD
5
GCE V2.3 nominal 2010 for Africa
6
Samples Bank (~6000 samples) Samples data (Reference data) will be uploaded to croplands.org for peer-review and sharing Q. How to set solid border between samples for training- purpose and assessment- purpose?
7
Accuracy Assessment Use HSegLearn to perform computer assisted photointerpretation of high resolution imagery data (< 5m) to generate ground reference sample independently. Alternative: get reference sample from GlobCover 300m Compared with country-wide statistics from FAO, UNEP,…etc.
8
Algorithm theoretical documentation basic Introduction Existing studies and limitations Version 2.3 product for Continental Africa Products description Contact information FAQs Algorithm theoretical documentation basic Study area Dataset: Satellite, Field data, Very high spatial resolution imagery Methodology Results References List of Tables and Figures
9
Manuscript Multi-temporal Analysis of Satellite Data to Automated Global Cropland Mapping: A Case Study in Continental Africa (In Manuscript) Jun Xiong 1,2 *, Prasad Thenkabail 1, Pardhasaradhi Teluguntla 1,3, Justin Poehnelt 2, Kamini Yadav 4 and Cristina Milesi 5 1 Flagstaff Science Center, US Geological Survey, Flagstaff, AZ 86001, USA; E-Mail: jxiong@usgs.gov 2 School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ 86001, USA 3 Bay Area Environmental Research Institute (BAERI), 596 1st St West Sonoma, CA 95476, USA 4 Department of Natural Resources and the Environment, University of New Hampshire, 56 College 12 Road, Durham, NH 03824, USA 5 NASA Ames Research Center, Naval Air Station, Moffett Field, Mountain View, CA 94035, USA jxiong@usgs.gov
10
Related Documents ATDB (GCEV2-ATDB.docx) Product self-description (GCEV2- readme.html) Sample Collection Procedures (SampleGuide.docx) Croplands.org Training Course (cropguide.html) Presentation slides
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.