Name
Title | ||
|---|---|---|
Selection and quality assessment of Landsat data for the North American forest dynamics forest history maps of the US. |
Abstract | ||
|---|---|---|
Using the NASA Earth Exchange platform, the North American Forest Dynamics ( NAFD) project mapped forest history wall-to-wall, annually for the contiguous US ( 1986-2010) using the Vegetation Change Tracker algorithm. As with any effort to identify real changes in remotely sensed time-series, data gaps, shifts in seasonality, misregistration, inconsistent radiometry and cloud contamination can be sources of error. We discuss the NAFD image selection and processing stream ( NISPS) that was designed to minimize these sources of error. The NISPS image quality assessments highlighted issues with the Landsat archive and metadata including inadequate georegistration, unreliability of the pre-2009 L5 cloud cover assessments algorithm, missing growing-season imagery and paucity of clear views. Assessment maps of Landsat 5-7 image quantities and qualities are presented that offer novel perspectives on the growing-season archive considered for this study. Over 150,000+ Landsat images were considered for the NAFD project. Optimally, one high quality cloud-free image in each year or a total of 12,152 images would be used. However, to accommodate data gaps and cloud/ shadow contamination 23,338 images were needed. In 220 specific path-row image years no acceptable images were found resulting in data gaps in the annual national map products. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1080/17538947.2016.1158876 | INTERNATIONAL JOURNAL OF DIGITAL EARTH |
Keywords | Field | DocType |
Landsat,forest cover change,time-series mapping,forest disturbance,North American forest dynamics,nasa earth exchange | Metadata,Vegetation,Remote sensing,Image quality,Radiometry,Forest dynamics,Geography,Image selection,Cloud cover,Cloud computing | Journal |
Volume | Issue | ISSN |
9.0 | 10.0 | 1753-8947 |
Citations | PageRank | References |
2 | 0.40 | 7 |
Authors | ||
9 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Karen Schleeweis | 1 | 14 | 3.00 |
| samuel n goward | 2 | 2 | 1.08 |
| Chengquan Huang | 3 | 226 | 36.44 |
| John L. Dwyer | 4 | 15 | 2.38 |
| Jennifer L. Dungan | 5 | 64 | 8.54 |
| Mary A. Lindsey | 6 | 2 | 0.40 |
| Andrew R. Michaelis | 7 | 50 | 8.13 |
| Khaldoun Rishmawi | 8 | 2 | 2.09 |
| Jeffrey G. Masek | 9 | 287 | 41.41 |