ECHO Forms: Configure Default Parameter Selection

Table of Contents

Purpose

This document describes the task of configuring default parameters (variables) for an ECHO form using the Data Access GUI:

Prerequisites
Selecting a collection-service record
Choosing default parameters
Choosing maximum number of parameters
Expected results in Earthdata Search Client

Note: the terms variable and parameter are used interchangeably throughout this document; both terms refer to named data elements ("data objects") within a granule by which variable subsetting can be invoked.

Prerequisites

Latest version of the DataAccess must be installed, including:
- AIM database patches
- ESI*
- DataAccess GUI
Invoke the appropriate mkcfgs; the corresponding web-services should begin.
Required information:
- The shortname and version ID of the target collection.

Premise

ECHO forms provide spatial, temporal, and variable subsetting capabilities for collections associated with services that have said capabilities. Variable subsetting can be used to extract named attributes from a granule. The default configuration method for any given set of data objects (variables) in a collection follows:

enable all data objects to appear in an ECHO form
pre-select all data objects in an ECHO form (do not subset by variable; include all of them)

There now exist two methods of mitigating the incidence of (overly) large orders that negatively impact the system:

default parameter selection
maximum parameter selection

DAAC operators can configure a "default selection" for configure data objects–that is, they can preselect a recommended subset of those, rather than implicitly recommend that the user download everything. This is method #1 of .

Configuration

ECHO forms are configured using the collection-service dialog(s) within the Data Access GUI.

Default Parameter Selection

Instructions

Expected Result (Data Access GUI)

Expected Result (Earthdata Search Client)

Maximum Parameter Selection