DOI: https://doi.org/10.5069/G9RF5S0N
OT Collection ID: OT.122016.26915.1
OT Collection Name: IML Critical Zone Observatory, Clear Creek Aug 2014 Lidar Survey
Short Name: IA14_Kumar_532, IA14_Kumar_1064
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.122016.26915.1b
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.122016.26915.1b

	2. Point Cloud Data
		opentopoID: OTLAS.122016.26915.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.122016.26915.1

	3. Raster
		opentopoID: OTSDEM.122016.26915.1
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.122016.26915.1

	4. Raster
		opentopoID: OTSDEM.122016.26915.1b
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.122016.26915.1b


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Collection Overview: This dataset was collected by NCALM for PI Dr. Praveen Kumar, University of Illinois. Clear Creek is part of the Intensively Managed Landscapes (ILM) Critical Zone Observatory (CZO).   The requested survey area consisted of two rectangles - called East and West - enclosing approximately 204 square kilometers along with their associated watercourse corridors. The West rectangle is located 35 km NW of Iowa City, Iowa and the East rectangle is located 10 km NW of the same city.
This survey was performed with 2 different LiDAR systems: 1) Optech Gemini Airborne Laser
Terrain Mapper (ALTM) which is an infrared laser mapping sensor and 2)
Optech Aquarius ALTM which is a hybrid laser mapping system as it
collects simultaneous land and shallow water-depth measurements. It operates in the green
spectrum, thus enabling it to penetrate water. These LiDAR mapping systems along with an
Optech 12-bit full waveform digitizer were mounted consecutively in a twin-engine Piper PA-
31-350 Navajo Chieftain (Tail Number N154WW). 

Full waveform files are available via this link.Publications associated with this dataset can be found at NCALM's Data Tracking Center

Dataset Acknowledgement: Lidar data acquisition and processing completed by the National Center for Airborne Laser Mapping (NCALM). NCALM funding provided by NSF's Division of Earth Sciences, Instrumentation and Facilities Program. EAR-1043051.

Dataset Citation: IML Critical Zone Observatory, Clear Creek Aug 2014 Lidar Survey. Distributed by OpenTopography. https://doi.org/10.5069/G9RF5S0N . Accessed: 2024-12-22

Use License: CC BY 4.0

Dataset Keywords: czo, intensely managed landscapes, critical zone observatory, clear creek, river, watershed, lidar

Survey Date: 08/04/2014
Publication Date: 03/03/2017

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Data Provider and Roles:
	1. National Center for Airborne Laser Mapping
	Role: Collector
	Url: https://ncalm.cive.uh.edu/

	2. National Science Foundation
	Role: Funder
	Url: https://nsf.gov/

	3. Intensively Managed Landscapes Critical Zone Observatory
	Role: Partner
	Url: http://criticalzone.org/iml/


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Total number of points: 178,274,179 pts

Area: 95.09 km^2

Point Density: 1.87 pts/m^2

Classifications: 
	Class 1 - Unclassified: 93,522,868
	Class 2 - Ground: 83,546,056
	Class 3 - Low Vegetation: 4
	Class 7 - Low Point (low noise): 228,590
	Class 11 - Road Surface: 976,661
Coordinates System: 
	Horizontal: NAD83 (2011) / UTM Zone 15N Meters [EPSG: 26915]
	Vertical: NAVD88 (GEOID 12A)

Survey Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/2014_CZO_ClearCreek_IA_Metadata.pdf

LAS Validation Data Report: http://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/IA14_Kumar_532.html

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.122016.26915.1&download=true

Dataset Spatial Bounds:
	North: 41.7724152341864°
	South: 41.6505661303923°
	East: -91.5455950757738°
	West: -92.0372689936907°