CJCZO -- LiDAR -- Terrestrial Laser Scan -- Jemez River Basin -- (2011-2013)

OVERVIEW

Description/Abstract

Terrestrial Laser Scan (TLS) datasets were collected for various projects pursued by the University of Arizona Critical Zone Observatory located in the Jemez River Basin within the Valles Caldera National Preserve. Three locations were TLS surveyed a total of four times over the course of two years. The locations are the Debris1 alluvial fan, Debris2 alluvial fan, and the BurnZOB small upland basin. The four surveys were completed after the Las Conchas fire in the summer of 2011. The approximate dates for each scan were 8/19/11, 6/4/12, 9/22/12, and 5/14/13.

All TLS data was collected using a Leica C10 scanner set up in the field by Jon Pelletier and Caitlin Orem. All scans were scanned for both points (on the medium scan setting) and photographs (meaning pictures were taken to then extrapolate RGB data from for each point). GPS data was collected in the field with a Leica Real-Time Kinematic Global Positioning System (RTK-GPS) unit. At each scan station at least three permanently located targets were scanned so all scans at a study site could be registered to one point cloud. At least three targets at each study site were surveyed with Real-Time Kinematic Global Positioning System (RTK-GPS) receivers until a temporary accuracy reading of less than 0.01 m was reached in each of the four cardinal directions.

All scans for each individual survey were uploaded to Leica Cyclone so scans could be registered together into one point cloud. GPS data for the base station was processed in Leica Geo Office and imported into Cyclone to georeference the point cloud. Data was then exported from Cyclone in .pts format (columns of x, y, z, intensity, r, g, b). Cloud Compare software was used to take the .pts file to .las.

Horizontal coordinate system is UTM 13N WGS84 METERS.

Vertical coordinate system is NAVD88.

Creator/Author

Caitlin Orem|Jon Pelletier

CZOs

Catalina-Jemez

Contact

Jon D. Pelletier, Department of Geosciences, University of Arizona, 1040 E. Fourth St., Tucson, AZ 85721, jdpellet@email.arizona.edu

Subtitle

Terrestrial Laser Scans for Debris 1, Debris 2 and Burn ZOB locations

SUBJECTS

Disciplines

GIS / Remote Sensing|Geomorphology

Topics

LiDAR

Subtopic

Terrestrial Laser Scan

Keywords

Terrestrial laser scan|post-wildfire|Las Conchas fire|Valles Caldera|Jemez Mountains|New Mexico

Variables

Point Cloud

Variables ODM2

Lidar point cloud

TEMPORAL

Date Start

2011-08-18

Date End

2013-05-17

SPATIAL

Field Areas

Jemez River Basin|Jemez 2011 Burned ZOB

Location

Jemez River Basin

North latitude

35.8888

South latitude

35.8462

West longitude

-106.4714

East longitude

-106.4452

REFERENCE

Citation

The following acknowledgment should accompany any publication or citation of these data - Logistical support and/or data were provided by the NSF-supported Jemez River Basin and Santa Catalina Mountains Critical Zone Observatory EAR-0724958.

Publications of this data

Orem C.A. and Pelletier J.D. (2015). Quantifying the time scale of elevated geomorphic response following wildfires using multi-temporal LiDAR data: An example from the Las Conchas fire, Jemez Mountains, New Mexico. Geomorphology 232: 224–238 http://dx.doi.org/10.1016/j.geomorph.2015.01.006

Pelletier J.D. and Orem C.A. (2014). How do sediment yields from post-wildfire debris-laden flows depend on terrain slope, soil burn severity class, and drainage basin area? Insights from airborne-lidar change detection. Earth Surface Processes and Landforms 39(13): 1822–1832 http://dx.doi.org/10.1002/esp.3570

CZO ID

4182

Award Grant Numbers

National Science Foundation - EAR-0724958

COMMENTS

Comments

All collections start early (~7 am) the first day and end mid-afternoon on second day. All collections were done moving from the base of the catchment (near the road) up to the top and then moving along the western slope of the catchment near the road.

All surveys were completed in the field and processed by Caitlin Orem.