The Pilot Land Data System (PLDS) is a multi-institutional effort directed towards solving the data access and management needs of scientists studying the land surface. Some of the hardware and software, which are now available, are reviewed

Estes, J. E.

Star, J. L.

English

NASA Technical Reports Server

P l l o t  Land Data System 
Jef f rey  L. Star and John E. Estes 
https://ntrs.nasa.gov/search.jsp?R=19860023394 2020-03-20T13:16:12+00:00Z
NASA Pilot Land Data System
Dr. J effrey L. Star
Prot. John E. Estes
The Pilot Land Data System (PLDS), funded by NASA's
Information Systems Office, Is a muItI-Institution effort
directed towards s o l v i n g the data access and management needs of
scientists studying the land surface and working wltn NASA (NASA
1984). Researchers at the University of California, Santa
Barbara have been I n v o l v e d in PLDS since the tirsr p l a n n i n g
workshops several years ago, and have contributed in several
areas (Estes et al 1985).
Workstations and PLDS
The purpose of one s m a l I effort, in conjunction wltn Mr.
WII I I am Likens at NASA Ames Research Laboratory, has been to
continue PLDS development activity In the area of scientific
workstations. This was funded In part through Nasa grant NAG2 -
352, "Workstations and the NASA Pilot Land Data System". WItnin
PLDS, workstations are viewed as the user Interface to the
network, pr o v i d i n g local processing capabi (ties as wel i as remote
access to communications, processing power, and data.
The starf at NASA Ames Research Center has developed a
Workstation Subsystem Databook (Likens et al, 1985). This volume
reviews some of the hardware and software which is now a v a i l a b l e
from the commercial sector. A portion of our efforts under this
contract has been to hel p gather data for tne databook, as wel I
as insure the technical accuracy of the book.
We have also parricI pared in technical meetings sponsored by Mr.
Likens at the Jet Propulsion Laboratory. The meeting In Pasadena on 7
March 85 considered workstations to be used In the funded PLDS science
projects, and we discussed methods to use the expertise developed
throughout the working group to assist the successful completion of the
science scenarios. In particular, we met with Dr. Alex Goetz to
discuss his needs for m a n i p u l a t i n g spectrometer datasets, wltn Mr. Mike
Martin to examine the overlap between his efforts on the P i l o t
Planetary Data System workstations and ours on the PLDS, ana wltn Mr.
Fred B I M i n g s l e y to discuss the D A V I D catalog Interchange system.
Recent efforts on workstation developments have i n c l u d e d
coordination with Mr. B I M i n g s l e y , and Mr. Pay I or from JPL. We have
helped guide them to a set of specifications for tne workstations tney
w i l l be purchasing, and demonstrated several workstations and software
systems which we own and operate to better aquainr tnem w» t n commercial
opt Ions.
On 16 December 85, Mr. Likens came to UCSB for a f i n a l meeting.
We demonstrated desktop image processing systems we have purchased or
developed, and provided a d d i t i o n a l information for tne databook.
PLDS Science Steering Group
On 1b Sept 85, and on 15,16 A p r i l 86, we participated In the
PLDS Science Steering Group (SSG) meeting at Goddard Space F l i g h t
Center. At these meetings, we both reviewed progress to date
towards meeting PLDS objectives In supporting the science
scenarios, as w e l l as formulated p l a n s for demonstration projects
In the near future. At the A p r i l PLDS SSG meeting Dr. Estes, In
Dr. Rossow's absence, acted as chair of the SSG. A significant
parr of the work at these meetings was to consider alternatives
In the face of s i g n i f i c a n t l y less f u n d i n g than anticipated. This
Included p r i o r i t i z i n g portions of the program, as wel I as
examining alternatives that b u i l d on efforts funded elsewhere.
The draft of Dr. Estes1 comments are included below.
References
Estes et a I 1 985
Estes, JE, JL Star, PJ Cressy and M Devinan. EJJ_c± Land Data
System. Photogrammetr I c Eng ineer ing and Remote Sens ing 51 (6):703-709.
June 1y8i>.
L I kens et a I 1 985
Likens, W, W. Acevedo, and D. Wolskl. ElJ_o_± .Land Data System
Workstat Ion Subsystem Data Book. Ecosystems Office, Nasa Ames Research
Center, Moffett F i e l d . March 1
NASA 1984
Pilo t Land Data System Working Group. The E_LLfl± Land Data System;
Report Qf the Program P I ann I ng Workshops. NASA Technical Memorandum
8625U. J u l y 1984.


Pilot land data system

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