Definition: | The township, township direction, range, range direction and primemeridian concatenated for each corner | The x –coordinates in meters for the location of the corner the tree data is associated with. These coordinates come from the NAD 1983 Great Lakes and St. Lawrence Albers (epsg:3175) projection. | The y –coordinates in meters for the location of the corner the tree data is associated with. These coordinates come from the NAD 1983 Great Lakes and St. Lawrence Albers (epsg:3175) projection. | This is the version number as the data was entered into Notre Dame's data entry system and then subsequently georeferenced. The individual corner and tree entries have been entered into Notre Dame's database starting in 2013 and go up to version 2.0, which was renamed version 1.0 when it was archived in NIS as package msb-paleon.28. Data entry for Illinois is ongoing so additional data will be added in the future until all townships have been completed. | Unique identification number given each entry when entered into ND’s MySQL (values range from 421460-714173)or Qualtrics (values start with "R", followed by a random alpha-numeric value, e.g., R_3iEDyGzsS632hUU) databases. | The date and time when the entry was entered or modified. When making the shapefile for GIS, this data does not convert, so in most entries it is removed here. If you need this information, Jody Peters can get it from Notre Dame's MySQL or Qualtrics database. | Initials/name of person who entered the data | Name of surveyor from PLS notes. 99999 represents missing name | PLS volume data came from. Illinois has volume numbers (unlike Indiana which does not). | Page in the PLS notes data came from | Year of PLS survey | State (IL) the survey was conducted in. There are some corners in townships 10N11W2, 9N11W2, and 8N11W2 on the border with Indiana where notes may be from Indiana records, but are physically located within Illinois. The state listed in this column are where the corners are physically located. The state where the notes were read from are listed in the General Notes section. | The county the township is located. Hubtack is the resource Notre Dame uses to get PLS records for Illinois and since our database was set up to first record data from Illinois, this column is still labeled as Hubtack_county. | Baseline number (1-4) of the township. These were entered the same as the prime meridian values so may not actually be the true baseline numbers. | Prime meridian number (1-4) of the township | The township number | Township direction (N or S) | Range number of the township | Range direction (E or W) | One of two interior sections the surveyor was traveling between (values range from 1-36) | The other of the two interior sections the survey was traveling between | The southern (31, 32, 33, 34, 35, ,36) or eastern (1, 12, 13, 24, 25, 36) township boundary section numbers. The name is a bit misleading because these sections are on the boundaries not on the interior of the township. | The township border that was entered. Typically the data was only entered for the southern and eastern borders for each township, not the northern and western borders. | Notre Dame has a standard numbering system for the 1/4 and section corners in a township. You can find the map here: https://www.dropbox.com/s/r0x3c9bf9vci02v/PLS%20Township%20Grid%20PalEON.pdf?dl=0.
The refcorner is the corner ID number from this map that the surveyors were traveling from | The direction the surveyors were traveling (E, W, N, S) | This denotes whether the surveyors were traveling over that portion of the township a second time. Y (yes) is used in cases when the surveyors have set a temporary post going one direction on a random line (typically when they travel east or west) and have come back on a true line and set the actual post and recorded trees. N (no) is used when the surveyors travel over a line only once (typically when they travel north or south). | The chains the section or 1/4 section corners were recorded at. Typically corners are 80.00 chains (or very close to 80) and 1/4 section corners are 40.00 chains (or very close to 40). | Labels are (¼) Section (i.e., corners set at the ½ mile, 40 chains), Section (i.e., points on the mile, 80 chains) or Township (i.e., the most NE, SE, and SW corners on the Township which are corners that could be found in adjacent townships). The township corners are labeled 100100, 700100, or 700700 on the corner map linked in the reforner description above. | The corner ID where the corner posts were set. These ID numbers come from the corner map linked in the refcorner description above. | This is the species for the first tree the surveyor recorded. The species name comes from a drop down list of options in the data entry form. DO NOT USE THIS OR THE SPECIES TO ASSESS TREE SPECIES, INSTEAD USE THE VERBATIM, LEVEL 1 OR LEVEL 3 TREE NAMES. | 2 letter abbreviation used for the first tree the surveyor recorded. These typically correspond with the species codes used by David Mladenoff from the University of Wisconsin, Madison. DO NOT USE THIS OR THE SPECIES TO ASSESS TREE SPECIES, INSTEAD USE THE VERBATIM, LEVEL 1 OR LEVEL 3 TREE NAMES. | This is the tree name as written in the PLS notes for the first tree listed in the notes. | Level 1 tree names. These are the names written verbatim, unless the verbatim entries have a ditto (also written do or ", etc). For example, if the verbatim notes say “ditto" and the previous tree surveyed was a beech, then L1_tree1 will be beech. | Level 3 tree names. These are standardized tree names that convert the Level 1 names to a genera level common name. e.g., Level 1 = White Oak, Level 3 = Oak. The conversion files can be found in the GitHub repository: https://github.com/PalEON-Project/PLS_products | Diameter in inches of the first tree the surveyor recorded. NOTE: there are some trees that have very large diameters (greater than 60 in). If you have a question about the size of the tree, check the "fixed" column to see if the notes have been double checked. | First bearing direction of the first tree the surveyor recorded (N, S, E, W – typically N or S). | Bearing degrees of the first tree the surveyor recorded (0-90; NOTE: degrees greater than 90 were double checked by Jody - see the notes for information about these entries). | The second bearing direction of the first tree the surveyor recorded (E, W). | Although this says “chains” this is the distance in links (NOT chains) from the post to the first tree the surveyor recorded. | This is the species for the second tree the surveyor recorded. The species name comes from a drop down list of options in the data entry form. DO NOT USE THIS OR THE SPECIES TO ASSESS TREE SPECIES, INSTEAD USE THE VERBATIM, LEVEL 1 OR LEVEL 3 TREE NAMES. | 2 letter abbreviation used for the second tree the surveyor recorded. These typically correspond with the species codes used by David Mladenoff from the University of Wisconsin, Madison. DO NOT USE THIS OR THE SPECIES TO ASSESS TREE SPECIES, INSTEAD USE THE VERBATIM, LEVEL 1 OR LEVEL 3 TREE NAMES. | This is the tree name as written in the PLS notes for the second tree listed in the notes. | Level 1 tree names. These are typically the names written verbatim, unless the verbatim entries have a ditto (also written do or ", etc). For example, if the verbatim notes say “ditto" and the previous tree surveyed was a beech, then L1_tree2 will be beech. | Level 3 tree names. These are standardized tree names that convert the Level 1 names to a genera level common name. e.g., Level 1 = White Oak, Level 3 = Oak. The conversion files can be found in the GitHub repository: https://github.com/PalEON-Project/PLS_products | Diameter of the second tree the surveyor recorded. If you have a question about the size of the tree, check the fixed column to see if the notes have been double checked. | First bearing of the second tree the surveyor recorded (N, S, E, W – typically N or S). | Bearing degrees of the second tree the surveyor recorded | The second bearing direction of the second tree the surveyor recorded (typically, E or W). | Although this says “chains” this is the distance in links (NOT chains) from the post to the second tree the surveyor recorded | This is the species for the third tree the surveyor recorded. The species name comes from a drop down list of options in the data entry form. DO NOT USE THIS OR THE SPECIES TO ASSESS TREE SPECIES, INSTEAD USE THE VERBATIM, LEVEL 1 OR LEVEL 3 TREE NAMES. | 2 letter abbreviation used for the third tree the surveyor recorded. These typically correspond with the species codes used by David Mladenoff from the University of Wisconsin, Madison. DO NOT USE THIS OR THE SPECIES TO ASSESS TREE SPECIES, INSTEAD USE THE VERBATIM, LEVEL 1 OR LEVEL 3 TREE NAMES. | This is the tree name as written in the PLS notes for the third tree listed in the notes. | Level 1 tree names. These are typically the names written verbatim, unless the verbatim entries have a ditto (also written do or ", etc). For example, if the verbatim notes say “ditto" and the previous tree surveyed was a beech, then L1_tree3 will be beech. | Level 3 tree names. These are standardized tree names that convert the Level 1 names to a genera level common name. e.g., Level 1 = White Oak, Level 3 = Oak. The conversion files can be found in the GitHub repository: https://github.com/PalEON-Project/PLS_products | Diameter of the third tree the surveyor recorded. If you have a question about the size of the tree, check the fixed column to see if the notes have been double checked. | First bearing of the third tree the surveyor recorded (N, S, E, W – typically N or S) | Bearing degrees of the third tree the surveyor recorded (0-90) | The second bearing direction of the third tree the surveyor recorded (E, W) | Although this says “chains” this is the distance in links (NOT chains) from the post to the third tree the surveyor recorded | This is the species for the fourth tree the surveyor recorded. The species name comes from a drop down list of options in the data entry form. DO NOT USE THIS OR THE SPECIES TO ASSESS TREE SPECIES, INSTEAD USE THE VERBATIM, LEVEL 1 OR LEVEL 3 TREE NAMES. | 2 letter abbreviation used for the fourth tree the surveyor recorded. These typically correspond with the species codes used by David Mladenoff from the University of Wisconsin, Madison. DO NOT USE THIS OR THE SPECIES TO ASSESS TREE SPECIES, INSTEAD USE THE VERBATIM, LEVEL 1 OR LEVEL 3 TREE NAMES. | This is the tree name as written in the PLS notes for the fourth tree listed in the notes | Level 1 tree names. These are typically the names written verbatim, unless the verbatim entries have a ditto (also written do or ", etc). For example, if the verbatim notes say “ditto" and the previous tree surveyed was a beech, then L1_tree4 will be beech. | Level 3 tree names. These are standardized tree names that convert the Level 1 names to a genera level common name. e.g., Level 1 = White Oak, Level 3 = Oak. The conversion files can be found in the GitHub repository: https://github.com/PalEON-Project/PLS_products | Diameter of the fourth tree the surveyor recorded. If you have a question about the size of the tree, check the fixed column to see if the notes have been double checked. | First bearing of the fourth tree the surveyor recorded (N, S, E, W – typically N or S) | Bearing degrees of the first tree the surveyor recorded (0-90) | The second bearing direction of the fourth tree the surveyor recorded (E, W) | Although this says “chains” this is the distance in links (NOT chains) from the post to the fourth tree the surveyor recorded. | When Notre Dame had used the GLO form/MySQL database to enter data, this had been the letter abbreviations regarding ecotypes. For example – G = grove, L = lake, P = prairie. When we switched to using the Qualtrics form to enter data, the ecotype names were no longer abbreviated. Although this wasn’t used extensively, there are some corners where students noted this. Corners in townships that were part of the Kankakee project are the most likely to have entries in this column with a focus on water notes. When we switched to entering data using the Qualtrics form in Fall 2017, ecotypes was used to describe corners with water/wet features. | Verbatim notes regarding the ecotype abbreviation | Another option to add more ecotype information | Another option to add more ecotype information | Another option to add more ecotype information | Another option to add more ecotype information | Attribute that characterized if corner post was set in Water or a Wet location. Water = a perpetually wet spot in a lake, creek, river, marsh, swamp, etc. Wet = a location that was noted as seasonally wet. See the generalnotes, features or ecotype columns to see why these corners were classified as water or wet. | A “Yes” entry means there was no data available for this corner (data was missing from the notes because the page was missing or the entry was just not written in. See the description in the general notes about why there was no data) | A “yes” entry means there was no tree listed at this corner either because it was water/wet or was in prairie. See the description in the generalnotes, ecotype or features to see why there was no tree. | Attribute for entering notes about non-ecological features. Examples include Post, Post in Mound, Road, House, etc. This was mainly used to note when there are no trees and surveyor sets a “post in mound”. | Verbatim description of the features | Notes about the type of timber for the past mile or 1/2 mile survyed getting to this corner. Students entered this data early in the data entry process, but stopped doing it around the summer of 2013. | Notes about the understory vegetation for the past mile or 1/2 mile surveyed gettin to this corner. Students entered this data early in the data entry process, but stopped doing it around the summer of 2013. | Drop down list of general landnote features. The surveyors often provided a general description of the land for the preceding half mile (notes are included with the tree information for the 1/4 section corner at 40 chains) or mile (notes are included with the tree information for the section corner at 80 chains). Notes often included information about the potential for cultivation or natural resources. NOTE: this description is for the land for the last half to one mile, so it does not necessarily pertain to the land specifically at the post. For example, there could be water features in the 1/2 mile surveyed, but that doesn't mean the post is set in water. | Verbatim land notes. This is used when the notes are more detailed or complicated or cannot be summarized with the options provided in the dropdown menu in Notre Dame's data entry system. | Attribute for general notes notes about this corner. | If data enterer was unsure of one of the aspects in this entry ID they could request that the person that did a double check on the data look over this entry. | Description of what needs to be rechecked in this entry | Description of anything that was changed from what was originally entered. If any entry looks questionable, check this column first to see if it has already been checked. If it hasn’t or if you still have questions about the entry, send Jody an email: peters.63@nd.edu |
Measurement Values Domain: | Definition | Township, Range, and Primemeridian |
| | | Definition | version number as the data was entered into Notre Dame's data entry system and subsequently georeferenced |
| | Format | MM-DD-YYYYY hh:mm | Precision | 0 |
| Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | cbroder1 | Definition | Caitlin Broderick | Source | |
| Code Definition | Code | alevesqu | Definition | Anna Levesque | Source | |
| Code Definition | Code | ahamlin | Definition | Quercus Hamlin | Source | |
| Code Definition | Code | jcooney3 | Definition | Jaclyn Cooney | Source | |
| Code Definition | Code | mkivi | Definition | Marissa Kivi | Source | |
| Code Definition | Code | dkim19 | Definition | Da Som Kim | Source | |
| Code Definition | Code | Ye Na Han | Definition | Annie Han | Source | |
| Code Definition | Code | Emily Miller | Definition | Emily Miller | Source | |
| Code Definition | Code | abuerger | Definition | Amanda Buerger | Source | |
| Code Definition | Code | Kaitlin Powers | Definition | Kaitlin Powers | Source | |
| Code Definition | Code | gsaalman | Definition | Grace Saalman | Source | |
| Code Definition | Code | mmuelle2 | Definition | Michelle Mueller | Source | |
| Code Definition | Code | emears | Definition | Emily Mears | Source | |
| Code Definition | Code | enguyen2 | Definition | Erin Nguyen | Source | |
| Code Definition | Code | yhan3 | Definition | Annie Han | Source | |
| Code Definition | Code | wchronis | Definition | Will Chronister | Source | |
| Code Definition | Code | bbruns | Definition | Bridget Bruns | Source | |
| Code Definition | Code | mcuellar | Definition | Mariel Cuellar | Source | |
| Code Definition | Code | Michael Spoltore | Definition | Michael Spoltore | Source | |
| Code Definition | Code | gblad | Definition | Garrett Blad | Source | |
| Code Definition | Code | jdeines | Definition | Jill Deines | Source | |
| Code Definition | Code | Ievans | Definition | Isaac Evans | Source | |
| Code Definition | Code | bfoster1 | Definition | Benjamin Foster | Source | |
| Code Definition | Code | nmicelot | Definition | Nicole Micelotta | Source | |
| Code Definition | Code | cwiech | Definition | Christina Wiech | Source | |
| Code Definition | Code | ahelmke | Definition | Alec Helmke | Source | |
| Code Definition | Code | zvolenec | Definition | Zoe Volenec | Source | |
| Code Definition | Code | kpowers3 | Definition | Kaitlin Powers | Source | |
| Code Definition | Code | kbauer3 | Definition | Kim Bauer | Source | |
| Code Definition | Code | jpeters | Definition | Jody Peters | Source | |
| Code Definition | Code | mcorcor5 | Definition | Margaret Corcoran | Source | |
| Code Definition | Code | hlegatzk | Definition | Hannah Legatzke | Source | |
| Code Definition | Code | Luke Onken | Definition | Luke Onken | Source | |
| Code Definition | Code | Matthew Donahue | Definition | Matthew Donahue | Source | |
| Code Definition | Code | cmattiso | Definition | Claire Mattison | Source | |
| Code Definition | Code | Emily Mears | Definition | Emily Mears | Source | |
| Code Definition | Code | Jody Peters | Definition | Jody Peters | Source | |
| Code Definition | Code | amuench | Definition | Alex Muench | Source | |
| Code Definition | Code | kaugust1 | Definition | Kate Augustine | Source | |
| Code Definition | Code | nfantozz | Definition | Nicole Fantozzi | Source | |
| Code Definition | Code | roneil1 | Definition | Rebecca O'Neil | Source | |
| Code Definition | Code | specorar | Definition | Sam Pecoraro | Source | |
| Code Definition | Code | wtintor | Definition | Will Tintor | Source | |
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| Definition | Name of surveyor from PLS notes. 99999 represents missing name |
| Unit | dimensionless | Type | natural |
| Unit | dimensionless | Type | natural |
| Unit | nominalYear | Type | natural |
| Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | IL | Definition | Illinois | Source | |
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| | Unit | dimensionless | Type | natural |
| Unit | dimensionless | Type | natural |
| Unit | dimensionless | Type | natural |
| Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | N | Definition | North | Source | |
| Code Definition | Code | S | Definition | South | Source | |
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| Unit | dimensionless | Type | natural |
| Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | W | Definition | West | Source | |
| Code Definition | Code | E | Definition | East | Source | |
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| Unit | dimensionless | Type | natural |
| Unit | dimensionless | Type | natural |
| Definition | southern and eastern section numbers |
| Definition | township border |
| Unit | dimensionless | Type | natural |
| Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | W | Definition | West | Source | |
| Code Definition | Code | E | Definition | East | Source | |
| Code Definition | Code | N | Definition | North | Source | |
| Code Definition | Code | S | Definition | South | Source | |
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| Allowed Values and DefinitionsEnumerated Domain | | Code Definition | | Code Definition | |
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| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | (1/4) Section | Definition | 1/4 section corner | Source | |
| Code Definition | Code | Section | Definition | section corner | Source | |
| Code Definition | Code | Township | Definition | Township corner this is the most NE, SE, and SW corners in the township which are corners that could be found in adjacent townships | Source | |
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| Unit | dimensionless | Type | natural |
| Definition | Species from a drop down list of options in the data entry form |
| Definition | 2 letter abbreviation for a species |
| Definition | This is the tree name as written in the PLS notes for the first tree listed in the notes. |
| Definition | Level1 tree names |
| Definition | Level 3 tree name |
| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | S | Definition | South | Source | |
| Code Definition | Code | N | Definition | North | Source | |
| Code Definition | Code | E | Definition | East | Source | |
| Code Definition | Code | NA | Definition | Not Applicable | Source | |
| Code Definition | Code | W | Definition | West | Source | |
| Code Definition | Code | 99999 | Definition | Missing from PLS notes | Source | |
| Code Definition | Code | 88888 | Definition | PLS notes Illegible | Source | |
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| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | W | Definition | West | Source | |
| Code Definition | Code | NA | Definition | Not applicable | Source | |
| Code Definition | Code | E | Definition | East | Source | |
| Code Definition | Code | 99999 | Definition | PLS notes are Illegible | Source | |
| Code Definition | Code | 88888 | Definition | Missing from PLS notes | Source | |
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| | Definition | Species from a drop down list of options in the data entry form |
| Definition | 2 letter abbreviation for a species |
| Definition | This is the tree name as written in the PLS notes for the second tree listed in the notes. |
| Definition | Level 1 tree names |
| Definition | Level 3 tree name |
| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | N | Definition | North | Source | |
| Code Definition | Code | S | Definition | South | Source | |
| Code Definition | Code | E | Definition | East | Source | |
| Code Definition | Code | W | Definition | West | Source | |
| Code Definition | Code | 99999 | Definition | Missing entry in PLS notes | Source | |
| Code Definition | Code | NA | Definition | Not applicable | Source | |
| Code Definition | Code | 88888 | Definition | PLS notes Illegible | Source | |
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| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | E | Definition | East | Source | |
| Code Definition | Code | W | Definition | West | Source | |
| Code Definition | Code | NA | Definition | Not applicable | Source | |
| Code Definition | Code | 99999 | Definition | Missing from PLS notes | Source | |
| Code Definition | Code | 88888 | Definition | Illegible in PLS notes | Source | |
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| | Definition | Species from a drop down list of options in the data entry form |
| Definition | 2 letter abbreviation for a species |
| Definition | This is the tree name as written in the PLS notes for the third tree listed in the notes. |
| Definition | Level 1 tree names |
| Definition | Level 3 tree name |
| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | NA | Definition | Not applicable | Source | |
| Code Definition | Code | S | Definition | South | Source | |
| Code Definition | Code | N | Definition | North | Source | |
| Code Definition | Code | 99999 | Definition | Missing from PLS notes | Source | |
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| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | NA | Definition | Not applicable | Source | |
| Code Definition | Code | E | Definition | East | Source | |
| Code Definition | Code | W | Definition | West | Source | |
| Code Definition | Code | 99999 | Definition | Missing from the PLS notes | Source | |
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| | Definition | Species from a drop down list of options in the data entry form |
| Definition | 2 letter abbreviation for a species |
| Definition | This is the tree name as written in the PLS notes for the fourth tree listed in the notes |
| Definition | Level 1 tree name |
| Definition | Level 3 tree name |
| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | NA | Definition | Not applicable | Source | |
| Code Definition | Code | S | Definition | South | Source | |
| Code Definition | Code | N | Definition | North | Source | |
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| | Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | NA | Definition | Not applicable | Source | |
| Code Definition | Code | W | Definition | West | Source | |
| Code Definition | Code | E | Definition | East | Source | |
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| | Definition | Letter abbreviation of ecotypes |
| Definition | Verbatim notes regarding the ecotype abbreviation |
| Definition | Another option to add more ecotype information |
| Definition | Another option to add more ecotype information |
| Definition | Another option to add more ecotype information |
| Definition | Another option to add more ecotype information |
| Definition | Corner set in a perpetually wet spot such as lake, creek, river, marsh, swamp, etc |
| Definition | No data available for this corner |
| Definition | Corner is set in a location that is water/wet or in a prairie |
| Definition | Type of non-ecological features |
| Definition | Verbatim description of the features |
| Definition | Timber listed for the past mile or 1/2 mile in the notes |
| Definition | Understory vegetation |
| Definition | Summary of land notes for the past 1/2 to 1 mile surveyed |
| Definition | Verbatim land notes. This is used when the notes are more detailed or complicated. |
| Definition | Attribute for general notes notes about this corner. |
| Allowed Values and DefinitionsEnumerated Domain | | Code Definition | Code | NA | Definition | Not applicable | Source | |
| Code Definition | Code | N | Definition | Corner requested to be checked and was checked | Source | |
| Code Definition | Code | Y | Definition | Corner requested to be checked by second individual | Source | |
| Code Definition | Code | Yes | Definition | Corner requested to be checked by second individual | Source | |
| Code Definition | Code | Done | Definition | Corner requested to be checked and was checked | Source | |
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| Definition | Description of what needs to be rechecked in this entry |
| Definition | Description of anything that was changed from what was originally entered. |
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