<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1858347502;
mso-list-template-ids:-1322633008;}
@list l0:level1
{mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:"Courier New";
mso-bidi-font-family:"Times New Roman";}
@list l0:level3
{mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level4
{mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level5
{mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level6
{mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level7
{mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level8
{mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level9
{mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">NASA's Earth Science Data and Information Systems (ESDIS) Standards Coordination Office (ESCO) conducts reviews of proposed standards, practices, and technical information relevant to the ESDIS
mission. Documents are reviewed as part of the <a href="https://earthdata.nasa.gov/user-resources/standards-process" target="_blank"><span style="color:#0563C1">ESDIS Project's standards process</span></a>. Approved documents are published and listed on the
Earthdata <a href="https://earthdata.nasa.gov/user-resources/standards-and-references" target="_blank">
<span style="color:#0563C1">Standards Requirements and References</span></a> page.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="mso-ligatures:standardcontextual">ESCO is conducting a review of
<u>Zarr storage specification version 2: Cloud-optimized persistence using Zarr</u>.
</span></b><span style="mso-ligatures:standardcontextual">You are invited to review the document in the context of your experience with Earth science data, for its suitability for operational use. <i>Your insights will help improve this document, and determine
whether it should be adopted as a NASA Convention for Earth Science data producers.</i><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">This review is intended for the community of Earth science data users who may benefit from the adoption of the Zarr cloud-optimized storage format for data access and scientific computing.
A clear understanding of both the advantages and limitations of this format are necessary to best serve these end user communities. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">If approved, these recommendations will serve as a NASA Convention (i.e. a specification in common use among some members of the NASA ESDS community).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">If you or your team member can review this document, please send names, email addresses, and
<a href="https://urs.earthdata.nasa.gov/" target="_blank"><span style="color:#0563C1">Earthdata login</span></a> usernames to <a href="mailto:esco-staff@lists.nasa.gov." target="_blank"><span style="color:#0563C1">esco-staff@lists.nasa.gov</span></a>. The
ECSO Staff will add your names as reviewers in the Jama system. You may also send any questions about the review to the ESCO staff at
<a href="mailto:esco-staff@lists.nasa.gov" target="_blank"><span style="color:#0563C1">esco-staff@lists.nasa.gov.</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="mso-ligatures:standardcontextual">All review comments are due by 10 Oct 2023
</span></b><span style="mso-ligatures:standardcontextual"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">See the Earthdata wiki page for additional information on this review -
<a href="https://wiki.earthdata.nasa.gov/x/pCPXEg"><span style="color:#0563C1">https://wiki.earthdata.nasa.gov/x/pCPXEg</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">You may send any questions about the review to the ESCO staff at
<a href="mailto:esco-staff@lists.nasa.gov"><span style="color:#0563C1">esco-staff@lists.nasa.gov</span></a>.<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="mso-ligatures:standardcontextual">Review Instructions: Jama<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">ESDIS uses the Jama online document review system to collect community comments on proposed standards, practices and technical information submitted to ESCO for review. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">If you already have access to the NASA Earthdata Jama system, please contact ESCO at
<a href="mailto:eso-staff@lists.nasa.gov" target="_blank"><span style="color:#0563C1">esco-staff@lists.nasa.gov</span></a> and let us know your Earthdata Login username so we can add to this review. Once you are registered, you will receive an email from Jama
with instructions on how to access the review. Use your Earthdata Login username and password to log in to Jama.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">If you do not already have a Jama account but wish to use the Jama system, you can request an account at the
<a href="https://bugs.earthdata.nasa.gov/servicedesk/customer/portal/5/create/16" target="_blank">
<span style="color:#0563C1">Earthdata Service Desk</span></a> - select JAMA/RMS as the productivity tool, View/Read as the access level, and say that you wish to participate in this review as the reason for access. Alternatively, you may email the ESCO staff
at <a href="mailto:esco-staff@lists.nasa.gov" target="_blank"><span style="color:#0563C1">esco-staff@lists.nasa.gov</span></a> for help in creating a Jama account.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">You will need an Earthdata Login account to access Jama. Earthdata Login account creation and username/password recovery can be done at
<a href="http://urs.earthdata.nasa.gov/" target="_blank"><span style="color:#0563C1">http://urs.earthdata.nasa.gov/</span></a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">Jama review link:
<a href="https://rms.earthdata.nasa.gov/review.req#/r:REV-590"><span style="color:#0563C1">https://rms.earthdata.nasa.gov/review.req#/r:REV-590</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">A short <a href="https://wiki.earthdata.nasa.gov/download/attachments/13860873/Jama-Guide-for-Reviewers.pdf?version=1&modificationDate=1681237220129&api=v2">
<span style="color:#0563C1">Jama Guide for Reviewers</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="mso-ligatures:standardcontextual">Alternative Method: Word/Email<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">Offline reviews, where you download the document and review questions, then respond via email, are also accepted.<o:p></o:p></span></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-ligatures:standardcontextual">Download the document:<o:p></o:p></span></li><ul style="margin-top:0in" type="circle">
<li class="MsoNormal" style="mso-list:l0 level2 lfo1"><span style="mso-ligatures:standardcontextual"><a href="https://wiki.earthdata.nasa.gov/download/attachments/316089252/ESDS-RFC-048%20Zarr%20Storage%20Specification%20V2%20v0.3.docx?version=1&modificationDate=1694812574092&api=v2"><span style="color:#0563C1">ESDS-RFC-048
Zarr Storage Specification V2 (.docx)</span></a><o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo1"><span style="mso-ligatures:standardcontextual"><a href="https://wiki.earthdata.nasa.gov/download/attachments/316089252/ESDS-RFC-048%20Zarr%20Storage%20Specification%20V2%20v0.3.pdf?version=1&modificationDate=1694812639759&api=v2"><span style="color:#0563C1">ESDS-RFC-048
Zarr Storage Specification V2 (.pdf)</span></a><o:p></o:p></span></li></ul>
<li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-ligatures:standardcontextual">Use the Track Changes tool in Microsoft Word to mark suggested changes or make comments.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-ligatures:standardcontextual">Provide additional feedback by answering the review questions at the end of the document.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-ligatures:standardcontextual">Alternatively, if there aren't too many comments, you can submit your review responses in an email.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-ligatures:standardcontextual">Send your feedback to the ESCO at
<a href="mailto:esco-staff@lists.nasa.gov" target="_blank"><span style="color:#0563C1">esco-staff@lists.nasa.gov</span></a><o:p></o:p></span></li></ol>
<p class="MsoNormal"><b><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Marseille Bunk
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">MCSG Tech<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Goddard Space Flight Center<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">443-995-6276 (cell phone)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"><a href="mailto:marseille.bunk@nasa.gov"><span style="color:#0563C1">marseille.bunk@nasa.gov</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Marseille.Bunk@mcsgtech.com<o:p></o:p></span></p>
<div class="MsoNormal" align="center" style="text-align:center">
<hr size="2" width="98%" align="center">
</div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>