Data Package Metadata View Summary

Hubbard Brook Experimental Forest (USDA Forest Service): Routine Seasonal Phenology Measurements, 1989 - present

General Information

Data Package:
Local Identifier:	knb-lter-hbr.51.13
Title:	Hubbard Brook Experimental Forest (USDA Forest Service): Routine Seasonal Phenology Measurements, 1989 - present
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	Spring and Fall leaf phenology observations have been made at 9 locations at the Hubbard Brook Experimental Forest since 1989. Timing and progression of spring leaf out and fall senescence are recorded for 3 dominant tree species, sugar maple, yellow birch, and beech, in treated and untreated watersheds and high and low elevations. Weekly measurements are taken during the active period of the fall or spring season. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.
Publication Date:	2021-01-08

Time Period

Begin:

1989-04-24

End:

2017-10-31

People and Organizations
Contact:	Information Manager (Hubbard Brook Ecosystem Study) [ email ]
Organization:	USDA Forest Service, Northern Research Station

Data Entities
Data Table Name:	HBEF_Phenology
Description:	Hubbard Brook phenology measurements

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-hbr/51/13/9f623c83fb1da7595c6d2d498bde15df
Name:	HBEF_Phenology
Description:	Hubbard Brook phenology measurements
Number of Records:	12810
Number of Columns:	6

Table Structure

Object Name:

HBEF_Phenology_longform.csv

Size:

617122 bytes

Authentication:

ee42500939484fb88c8ccaa42be510fb Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Column Name:

Date

DAY

SEASON

SPECIES

SITE

Phenology_Stage

Definition:

Date of observation

Day of year

Season (spring vs fall)

Species

Sampling site

Average value of phenology stage codes. See full code descripition in methods

Storage Type:

date

float

string

float

Measurement Type:

dateTime

ratio

nominal

ratio

Measurement Values Domain:

Format	YYYY-MM-DD
Precision

Unit	dimensionless
Type	natural
Min	93
Max	323

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	SPRING
Definition	SPRING
Source

Code Definition

Code	FALL
Definition	FALL
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	American_Beech
Definition	American_Beech
Source

Code Definition

Code	Sugar_Maple
Definition	Sugar_Maple
Source

Code Definition

Code	Yellow_Birch
Definition	Yellow_Birch
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1B
Definition	Trees located at the bottom of WS1
Source

Code Definition

Code	6T
Definition	Trees located at the top of WS6
Source

Code Definition

Code	4B
Definition	Tree located at the bottom of WS4, oldest strips
Source

Code Definition

Code	4T
Definition	Trees located at the top of WS4, oldest strips
Source

Code Definition

Code	5B
Definition	Trees located at the bottom of WS5
Source

Code Definition

Code	5T
Definition	Trees located at the top of WS5
Source

Code Definition

Code	7B
Definition	Trees located at the bottom of WS7 (or 8)
Source

Code Definition

Code	7T
Definition	Trees located at the top of WS7 (or 8)
Source

Code Definition

Code	HQ
Definition	Trees located near the Headquarters building
Source

Code Definition

Code	CONE
Definition	Trees located at the Cone Pond site
Source

Unit	dimensionless
Type	real
Min	-9
Max	4

Missing Value Code:

Code	'-9.0'
Expl	no observation

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data (\"Data User\" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available \"as is.\" The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
LTER Controlled Vocabulary	ecosystems, forests, watersheds, phenology
LTER Core Research Area	disturbance
HBES Vocabulary	HBR, Hubbard Brook LTER, Hubbard Brook Experimental Forest, Hubbard Brook Ecosystem Study, HBES, HBEF, New Hampshire, NH, White Mountain National Forest
ISO 19115 Topic Category	biota, climatologyMeteorologyAtmosphere
National Research & Development Taxonomy	Climate change, Climate change effects, Ecology, Ecosystems, & Environment

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

SAMPLING DESIGN

Routine observations of phenology at HBEF began in the spring of 1989 at all watershed sites; observations at HQ began in 1993. The objective of the observations is to provide repeatable, quantified phenology data in a way that takes little time. Each location as described above (1B, 6T, etc) is a specific point along the weekly watershed rounds route which is permanently marked. Visible from each location are three dominant or codominant trees of each of the three species: sugar maple, yellow birch, and beech. These individual trees are permanently marked on the side toward the "location" mark. When possible, their crowns are visible from the location itself to minimize the amount of moving around that is necessary.

DATA DESCRIPTION

For each tree at each location, one index value is recorded weekly during the seasonal transition periods in spring and autumn. The index value reflects the stage of leaf-out or scenescense as described in the data table below. The index is averaged for the three trees of one species at a location and this averaged value is recorded as the phenology index for a given date in the phenology database. Observations are not needed in winter or in summer unless insect attack causes premature senescence or leaffall.

Phenology Codes:

SPRING:

[0] No change from winter conditions, unexpanded buds only

[1] Bud swelling noticeable

[2] Small leaves or flowers visible, initial stages of leaf expansion, leaves about 1 cm long

[3] Leaves 1/2 of final length, leaves obscure half of sky as seen through crowns

[3.5] Leaves 3/4 expanded, sky mostly obscured through crown, crowns not yet in summer condition

[4] Canopy appears in summer condition leaves fully expanded little sky visible through crowns

FALL:

[0] All leaves have fallen except remnants on beech, winter condition

[0.5] Most leaves fallen

[1] No more green in canopy, half of leaves have fallen, leaves still obscure half of sky as seen through crown

[2] Most leaves yellow, red or colored, few leaves have fallen, leaves still obscure most of the sky as seen through crown

[3] Many leaves have noticeable reddening or yellowing, much green still present

[4] Canopy appears in summer condition only scattered leaves or branches have any color change

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@environmentaldatainitiative.org

Web Address:

https://environmentaldatainitiative.org

Creators:

Organization:

USDA Forest Service, Northern Research Station

Contacts:

Organization:

Hubbard Brook Ecosystem Study

Position:

Information Manager

Email Address:

hbr-im@lternet.edu

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

1989-04-24

End:

2017-10-31

Geographic Region:

Description:

Hubbard Brook Experimental Forest

Bounding Coordinates:

Northern:	43.959	Southern:	43.914
Western:	-71.8062	Eastern:	-71.7022

Sampling Site:

Description:

Phenology plot 1B (elevation 1549m)

Site Coordinates:

Longitude (degree):

-71.725558

Latitude (degree):

43.952022

Sampling Site:

Description:

Phenology plot 6T (elevation 2518m)

Site Coordinates:

Longitude (degree):

-71.742178

Latitude (degree):

43.955547

Sampling Site:

Description:

Phenology plot 4B (elevation 1733m)

Site Coordinates:

Longitude (degree):

-71.728739

Latitude (degree):

43.950917

Sampling Site:

Description:

Phenology plot 4T 9elevation 1996m)

Site Coordinates:

Longitude (degree):

-71.731661

Latitude (degree):

43.958947

Sampling Site:

Description:

Phenology plot 5B (elevation 1556m)

Site Coordinates:

Longitude (degree):

-71.731831

Latitude (degree):

43.949128

Sampling Site:

Description:

Phenology plot 5T (elevation 2385m)

Site Coordinates:

Longitude (degree):

-71.736869

Latitude (degree):

43.9574

Sampling Site:

Description:

Phenology plot 7B (elevation 1985m)

Site Coordinates:

Longitude (degree):

-71.765647

Latitude (degree):

43.928928

Sampling Site:

Description:

Phenology plot 7T (elevation 2700m)

Site Coordinates:

Longitude (degree):

-71.769733

Latitude (degree):

43.918358

Sampling Site:

Description:

Phenology plot HQ (elevation 750m)

Site Coordinates:

Longitude (degree):

-71.700975

Latitude (degree):

43.945733

Taxonomic Range:

Classification:

Rank Name:

kingdom

Rank Value:

Plantae

Classification:

Rank Name:

subkingdom

Rank Value:

Viridiplantae

Classification:

Rank Name:

infrakingdom

Rank Value:

Streptophyta

Classification:

Rank Name:

superdivision

Rank Value:

Embryophyta

Classification:

Rank Name:

division

Rank Value:

Tracheophyta

Classification:

Rank Name:

subdivision

Rank Value:

Spermatophytina

Classification:

Rank Name:

class

Rank Value:

Magnoliopsida

Classification:

Rank Name:

superorder

Rank Value:

Rosanae

Classification:

Rank Name:

order

Rank Value:

Fagales

Classification:

Rank Name:

family

Rank Value:

Betulaceae

Classification:

Rank Name:

genus

Rank Value:

Betula

Classification:

Rank Name:	species
Rank Value:	Betula alleghaniensis

Classification:

Rank Name:

kingdom

Rank Value:

Plantae

Classification:

Rank Name:

subkingdom

Rank Value:

Viridiplantae

Classification:

Rank Name:

infrakingdom

Rank Value:

Streptophyta

Classification:

Rank Name:

superdivision

Rank Value:

Embryophyta

Classification:

Rank Name:

division

Rank Value:

Tracheophyta

Classification:

Rank Name:

subdivision

Rank Value:

Spermatophytina

Classification:

Rank Name:

class

Rank Value:

Magnoliopsida

Classification:

Rank Name:

superorder

Rank Value:

Rosanae

Classification:

Rank Name:

order

Rank Value:

Sapindales

Classification:

Rank Name:

family

Rank Value:

Sapindaceae

Classification:

Rank Name:

genus

Rank Value:

Acer

Classification:

Rank Name:	species
Rank Value:	Acer saccharum

Classification:

Rank Name:

kingdom

Rank Value:

Plantae

Classification:

Rank Name:

subkingdom

Rank Value:

Viridiplantae

Classification:

Rank Name:

infrakingdom

Rank Value:

Streptophyta

Classification:

Rank Name:

superdivision

Rank Value:

Embryophyta

Classification:

Rank Name:

division

Rank Value:

Tracheophyta

Classification:

Rank Name:

subdivision

Rank Value:

Spermatophytina

Classification:

Rank Name:

class

Rank Value:

Magnoliopsida

Classification:

Rank Name:

superorder

Rank Value:

Rosanae

Classification:

Rank Name:

order

Rank Value:

Fagales

Classification:

Rank Name:

family

Rank Value:

Fagaceae

Classification:

Rank Name:

genus

Rank Value:

Fagus

Classification:

Rank Name:	species
Rank Value:	Fagus grandifolia

Project

Parent Project Information:

Title:

Long Term Hubbard Brook Phenology Measurements

Personnel:

Organization:	USDA Forest Service, Northern Research Station
Role:	Principal Investigator

Funding:

USDA Forest Service, Northern Research Station

Maintenance

Maintenance:

Description:	ongoing
Frequency:

Other Metadata

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

Hubbard Brook Experimental Forest (USDA Forest Service): Routine Seasonal Phenology Measurements, 1989 - present

Data Entities

Data Table

Data Package Usage Rights

Keywords

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Recently Added

Recently Updated

Data Package Metadata View Summary

Hubbard Brook Experimental Forest (USDA Forest Service): Routine Seasonal Phenology Measurements, 1989 - present

+/- Data Entities

Data Table

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance