The tagged plants at this site, grouped by growth form : deciduous broadleaf trees, evergreen conifers, forbs, and so on. Each is watched for the phenophases its growth form shows.
Phenology is monitored on a fixed roster of tagged individuals along transects. It is a within-site timing signal, not a site-wide census of abundance.
Written from this site's live data.
A zip of tidy CSVs: the long observation table, per-plant-year onsets (with a left-censored flag), per-plant summaries, the weekly clock table, and the species green-up trend, plus a codebook decoding every column, the phenophases, and the methods.
Built to load straight into R or Python; documented so it's still usable in five years.
Everything this site computes, as documented CSVs you can analyze yourself.
Download analysis bundle (CSV + codebook)
The year, week by week
Each colored arc is a
phenophase
: breaking leaf buds, leaves, open flowers, colored leaves, falling leaves. The further the arc reaches out from the center in a given week, the larger the
share of plants
in that phenophase that week.
Read it like a clock of the year: where the green arcs peak is leaf-out; where the pink peaks is bloom; where the orange peaks is autumn.
This view
pools all monitored years
to show the typical season. Use the Onset Lab to see year-to-year shifts.
Phenology Clock
Each colored arc is a phenophase : breaking leaf buds, leaves, open flowers, colored leaves, falling leaves. The further the arc reaches out from the center in a given week, the larger the share of plants in that phenophase that week.
Read it like a clock of the year: where the green arcs peak is leaf-out; where the pink peaks is bloom; where the orange peaks is autumn.
This view pools all monitored years to show the typical season. Use the Onset Lab to see year-to-year shifts.
The typical seasonal cycle of every phenophase, pooled across years. Switch species to compare how different plants time their year.
Angle = week of the year (Jan at the top, moving clockwise). Radius = % of monitored plants recorded in that phenophase that week.
Per year, across plants of each species (need ≥3 plants in a species-year to show): median green-up onset (when plants leaf out), or median leaf-active days (how long they carry leaves, the desert-safe read that works where green-up is too thin). Use Show to switch.
Every plant on one board
Each dot is a
tagged plant
, placed by its
green-up onset
(median day-of-year it first breaks leaf) and its
leaf-active days
(how many days a year it actually carries leaves, counted week by week, so a desert plant that flushes twice with the rains isn't credited a 300-day season).
Tap a dot
to pin its card; tap “Open plant profile” for its full phenophase career. Faint dots don't yet have both leaf-out and leaf-active days recorded.
Onset Lab
Each dot is a tagged plant , placed by its green-up onset (median day-of-year it first breaks leaf) and its leaf-active days (how many days a year it actually carries leaves, counted week by week, so a desert plant that flushes twice with the rains isn't credited a 300-day season).
Tap a dot to pin its card; tap “Open plant profile” for its full phenophase career. Faint dots don't yet have both leaf-out and leaf-active days recorded.
Each dot is a plant: when it wakes × how many days it carries leaves. Tap to pin a card; open any plant's full career.
Left = early risers (wake early in spring); right = late sleepers. High = carries leaves many days a year; low = brief. The amber diamond is the plant you're viewing.
Phenology plots across the site
Each marker is a NEON phenology plot, sized by how many plants are tagged there and coloured by your chosen metric.
Across the network
Each point is a
bundled site
. Use
Show
to switch between
median green-up day
(when plants leaf out) and
leaf-active days
(how long they carry leaves, the desert-safe read).
Sites differ in which species they monitor and how often they're visited, so read these as a
gradient across the network
, not a controlled experiment. Green-up leads with the
within-species
slope (species held constant); leaf-active is shown markers-only because it sorts by
biome
, not by a clean latitude law.
Across-site views
Each point is a bundled site . Use Show to switch between median green-up day (when plants leaf out) and leaf-active days (how long they carry leaves, the desert-safe read).
Sites differ in which species they monitor and how often they're visited, so read these as a gradient across the network , not a controlled experiment. Green-up leads with the within-species slope (species held constant); leaf-active is shown markers-only because it sorts by biome , not by a clean latitude law.
Forty-six sites from desert to tundra, and how the calendar of the canopy shifts across the continent.
For a species monitored at several sites, its median green-up day or leaf-active days at each (it follows the Show toggle), a cleaner read because the species is held constant (≥3 plants per site).
Search the network
Search across every bundled site at once, with no waiting. The whole index is packed into the app, so a search is instant.
The measure is each site's
median green-up day
for a species, a within-site index, not an absolute ranking. Sites differ in which species they monitor and how often they visit, so read the numbers as approximate.
Search the network
Search across every bundled site at once, with no waiting. The whole index is packed into the app, so a search is instant.
The measure is each site's median green-up day for a species, a within-site index, not an absolute ranking. Sites differ in which species they monitor and how often they visit, so read the numbers as approximate.
Find which sites monitor a plant, or pull the sites whose spring lands before or after a day you choose.
Median green-up day is pooled across a site's monitored plants (for a species, across at least three tagged individuals). Day 1 is January 1; day 120 is about the end of April.