# Aleksandar Jelenak

> engineer & physicist (1967-)

**Wikidata**: [Q120640533](https://www.wikidata.org/wiki/Q120640533)  
**Source**: https://4ort.xyz/entity/aleksandar-jelenak

## Summary
Aleksandar Jelenak is a male engineer, physicist, researcher, and programmer born in 1967. He is primarily known for his significant contributions to atmospheric science data processing and analysis during his career at the University Corporation for Atmospheric Research (UCAR) and for his current software engineering role at The HDF Group.

## Biography
- **Born:** 1967-04 (April 1967)
- **Nationality:** Not specified in source material.
- **Education:** Not specified in source material.
- **Known for:** Contributions to atmospheric data processing and analysis, particularly vegetation health monitoring using remote sensing.
- **Employer(s):**
  - Current: The HDF Group
  - Past: University Corporation for Atmospheric Research (UCAR) (2005 - 2014)
- **Field(s):** Engineering, Physics, Research, Programming, Atmospheric Science Data Processing

## Contributions
Aleksandar Jelenak has developed and applied software tools and methodologies for analyzing large-scale environmental datasets. While at UCAR (2005-2014), his work was instrumental in the creation of long-term data records for monitoring global vegetation health, as evidenced by his contribution to the publication "Global Vegetation Health: Long-Term Data Records". Since joining The HDF Group, he has focused on software engineering, contributing to the development and maintenance of the Hierarchical Data Format (HDF) software stack. His GitHub repository (`ajelenak`) and participation in standards development through ESIP (Earth Science Information Partners) highlight his active role in the geoscience software community and data infrastructure. His work facilitates efficient handling and analysis of complex scientific data, particularly in Earth observation.

## FAQs
### Q: What is Aleksandar Jelenak's primary profession?
A: Aleksandar Jelenak is primarily an engineer and physicist, with significant work as a researcher and programmer. His career spans roles in atmospheric data processing (UCAR) and software engineering (The HDF Group).

### Q: Where is Aleksandar Jelenak currently employed?
A: Aleksandar Jelenak is currently employed by The HDF Group.

### Q: What significant work did he do at UCAR?
A: While at UCAR (2005-2014), Jelenak contributed to developing long-term data records for monitoring global vegetation health, specifically working on remote sensing data analysis techniques.

### Q: What software development role does he hold now?
A: At The HDF Group, Aleksandar Jelenak works as a software engineer, contributing to the development of the Hierarchical Data Format (HDF) software infrastructure.

### Q: What platforms is he active on professionally?
A: He maintains a professional presence on GitHub (username: ajelenak), LinkedIn (ID: aleksandar-jelenak-1872418), ResearchGate (ID: 70371551), and is associated with ESIP (Commons profile).

## Why They Matter
Aleksandar Jelenak's work has significantly advanced the practical application of software engineering within atmospheric and Earth sciences. His development of tools for processing and analyzing vast geospatial datasets, particularly during his tenure at UCAR on vegetation health monitoring, provided critical long-term records for environmental science. His current role at The HDF Group involves maintaining and evolving the HDF data format, which is foundational for storing and managing complex scientific data across numerous domains. By bridging the gap between scientific research and robust software infrastructure, Jelenak has enabled more efficient and accessible data analysis for researchers worldwide, impacting fields from climate science to environmental monitoring.

## Notable For
- **Software Engineering Leadership:** Key contributor to the development and maintenance of the Hierarchical Data Format (HDF) software stack at The HDF Group.
- **Remote Sensing Data Analysis:** Instrumental in developing long-term vegetation health monitoring methodologies at UCAR (2005-2014), contributing to "Global Vegetation Health: Long-Term Data Records".
- **Scientific Data Standards Participation:** Active member of the Earth Science Information Partners (ESIP), contributing to data standards and community resources.
- **Open Source Contribution:** Maintains a professional GitHub repository (`ajelenak`) showcasing software development related to scientific data processing.
- **Professional Recognition:** Holds unique identifiers across major academic and professional platforms (DBLP: 78/9901, IEEE Xplore: 37829324400, LinkedIn: aleksandar-jelenak-1872418, ResearchGate: 70371551).

## Body
### Personal and Professional Identity
Aleksandar Jelenak is a male individual born in April 1967. He resides in Springfield. His core professional identity encompasses the roles of engineer, physicist, researcher, and programmer. He is recognized for his contributions to atmospheric science data processing and software engineering.

### Career and Affiliations
- **Current Affiliation:** Employed by **The HDF Group**. His role involves software engineering, specifically contributing to the **Hierarchical Data Format (HDF)** ecosystem. He holds the email address `ajelenak@hdfgroup.org` and maintains a professional profile under the username `ajelenak` on **GitHub**.
- **Previous Affiliation:** Employed by the **University Corporation for Atmospheric Research (UCAR)** from **2005 until 2014**. During this tenure, his work focused on **atmospheric data processing and analysis**, particularly in the field of **vegetation health monitoring using remote sensing data**. He co-authored a chapter in the publication "Global Vegetation Health: Long-Term Data Records" in 2010 (published in 2011), detailing this work.
- **Professional Network:** He is associated with **Earth Science Information Partners (ESIP)** and maintains profiles on **LinkedIn** (ID: aleksandar-jelenak-1872418), **ResearchGate** (ID: 70371551), and **SlideShare** (username: AleksandarJelenak). He is also indexed in **DBLP** (Author ID: 78/9901) and **IEEE Xplore** (Author ID: 37829324400).

### Areas of Expertise and Contribution
- **Fields:** Engineering, Physics, Research, Programming, Atmospheric Science, Data Processing, Remote Sensing.
- **Specific Contributions:**
  - Developed software tools and methodologies for analyzing large-scale environmental datasets at UCAR, enabling long-term vegetation health monitoring.
  - Designs, develops, and maintains software components within the HDF Group's suite of products for efficient storage and management of scientific data.
  - Participates in the scientific software community through open-source contributions (GitHub) and engagement with standards bodies (ESIP).
- **Impact:** His work facilitates the efficient handling and analysis of complex geospatial data, supporting research in climate science, environmental monitoring, and Earth observation. The HDF technology he contributes to underpins data management in numerous scientific domains.

## References

1. GitHub
2. [Aleksandar Jelenak | Commons](https://commons.esipfed.org/node/2507)
3. LinkedIn
4. [Aleksandar Jelenak](https://www.truepeoplesearch.com/find/person/p646n84l42uu666r64nl)